a sliver of the san andreas. >> you see all of that, all of the houses, they are there. this beach dropped down. that is why it is filled with sand. that is why it has all of the surfers here. we owe this community to the fault. the surfers are in debt to the fault. but the wanna-be fault ever had a major quake that then triggered a massive quake on the nearby san andreas? >> no. we don't know about these faults. all of the branch ones, we don't know much we spent our time studying the big one. that is misplaced. misguided. we need to understand the branch faults because they seem to be the match that lights the fuse. >> here is the payoff. if the idea is right it could give us extra seconds of warning that if a moderate quake hits at exactly the right place it might signal that an even more destructive quake could follow in a very short time. and in the case of a massive earthquake every second counts especially if you have some idea that one could be on the way. >>> california is announcing the final step in the plan to ease the insurance crisis. a new regulation will

that's closer to the san andreas fault. how do you read that? >> what you are seeing on your screen, the light red color all along the shoreline reaching closer to us, that is the san andreas fault line. it kind of skirts a little bit to the left. just offshore of areas like ferndale and all throughout the region actually, that is where the epicenter was. 7.0 magnitude earthquake struck at 10:44 this morning. now we see one of the strongest aftershocks, just got downgraded. this is down to 3.9. continuing to keep a close eye on ferndale and petroleum. these are communities that are still filling the aftershocks right now and they will continue to feel them as we head into the evening hours tonight. right after these strong earthquakes happen. the first thing that the usgs reports as the aftershock forecast. right now, up to around 10:00 at currently. we still see a 99 chance of 3.0. >> i will toss it to chris emmons with the arcata police department. can you hear us? apologies, you are with the fire department. what is happening in the community

the san andreas fault makes a hard left turn right here and goes out into the ocean. this is a hugely important aspect of today's earthquake. the earthquake today happened on the san andreas fault where you've got this part of the plate moving that way and then the other side of the plate up here was moving towards the subduction zone. the bottom line is that's a slip strike. there was no vertical movement this because the plates moved right past one another, kind of like, you know, sliding plates horizontally right by one another. the problem is when that earthquake happened, we couldn't get verification immediately on terms of what was the ground structure like? was there any uplift? was there the kind of movement down here where you could have generated a wave that would be responsible for a tsunami? that's why we had the warning today, because we couldn't get an early enough confirmation on what happened down at the sea floor from any kind of vertical movement on that plate. thankfully, it was just sliding by one another harmlessly and not subdeducting where you g

continuando con esta de la falla de san andreas, que no solamente impactó a lo que es al océano pacífico más grande fue el de 1906 en san francisco, donde hubo muchos muertos, 63 muertos, más de 3000, casi 4000 personas lesionadas por este terremoto. la tecnología, por supuesto, ha avanzado un poco para prepararnos al menos 10 oo 15 segundos para proteger nuestros nuestros cuerpos, nuestros familiares que estén cerca de nosotros y lo que se espera aquí en california, no solamente con este terremoto, pero diario, es que tengamos al menos 100 terremotos que de magnitud 2.0 3.0, que a veces no se siente. a veces se siente como si nos preguntamos fue una troca que pasó cerca de mi casa? no son esos terremotos que continúan diariamente en nuestro estado porque estamos centrados en al menos 6 fallas activas aquí en el área de la bahía, con alrededor de 20 que todavía no se han estudiado, con mayor más estudios, pero que seguimos aprendiendo más de ellos, al menos unos 36.000 terremotos al estado en el año. así que la probabilidad de sentir algo en los próximos días no va a ser de ese 7.0, pero

a sliver of the san andreas. >> they're on the fault scarp. this has been uplifted by the fault and this beach has been dropped down. that's why it's filled with sand. and that's why it has all the surfers here. so we owe this community to the pillar fault. and the surfers in particular are in debt to the fault. >> reporter: but has the wannabe fault ever had a major quake that then triggered a massive quake of the nearby san andreas? >> no, we don't really know anything about this fault and all the branch faults don't know very much. we spent all our time studying the big one but it turns out that's a little misplaced a little misguided. we need to understand these branch faults because they seem to be the match that lights the fuse. >> so here is the payoff here, this theory actually holds, could give us precious extra seconds of warning that if a moderate quake hits in exactly the right place it might signal an even more destructive quake soon after. we know every second counts. >>> all right, taking a live live look outside let's lighten t

in the bay area you could stand on the san andreas and straddle it, but up where today's quake happened things get complicated. first the general site of the quake, cape mendocino, is a hatchery of the most abundant large earthquakes anywhere in mendocino. >> it appeared on the mendocino fracture zone that sits offshore of humboldt county. >> it's where the san andreas smashes through three major tectonic plates near mendocino. no wonder nearby ferndale is hammered constantly. >> the largest in recent memory in the area was 1992. this part of california is about the most productive part of the state in terms of earthquakes. >> today's quake hit on an extensions of the san andreas fault. so it was strike slip. that sort of faulting does not produce tsunamis. >> i guess they issued the warning before they knew the mechanism that triggered the quake. >> yeah. agencies tend to go for speed to get warnings out to people and information from events like this take a while to arrive and to be processed. >> it is jam packed with cars right now and getting fuller and fuller. >> it was a fairly bi

san andreas smashes into three others. >> the largest area in recent memories was 1992.f california is about the most productive part of the state. in terms of earthquakes. >> reporter: today's quake hit on an extension of the san andreas fault so it was strike slip. that sort of faulting doesn't issue tsunamis. >> so i guess they issued the warning before they knew what triggered the quake. >> agencies tend to go for speed to get warnings out to people and information from events like this take a while to arrive and be processed. >> it is jam packed with cars right now. getting fuller and fuller. >> it was a fairly big never mind but. >> caution is always a good response. >> reporter: after aftershocks continued to roll in at a rapid rate. >> after an earthquake of this magnitude, aftershocks can last for months or years. >> reporter: none of the faults in the bay area should be triggered but this quake but can you relax? >> we live in earthquake country. there is always the possibility for large earthquakes. today's on the mendocino triple junction faults up in norther

and i mentioned the san andreas fault. so here to give you an idea of when's the last time we saw a significant quake in the bay area. keep in mind we've got six well known active fault lines that run across the bay area, but there could be a number of undiscovered fault zones that lie in the bay area. so the largest major earthquake that we saw along this fault line was april 18th. back in 1906. it was a 7.9 magnitude, and we also saw, unfortunately, the death and also impact to homes and nearly 400 million people suffered in property damage. now this again is along the san andreas fault, but it's preliminary. we're still waiting to hear confirmation from usgs about where this exactly was located. but they are tweeting out so far that it is along that mendocino triple junction area, which is a very active zone between the two plates. okay. when was the last time we saw a tsunami warning along our coast? that's a good one as well. you know, we were wondering as well in the newsroom and i did reach out to the national weath

and where we see the san andreas fault kind of split into three plates, where it all connects with the pacific rim, the pacific coast. i should say, as we take a look at how many reports we've received as of now, we've gotten 25 reports of earthquakes, many of them very minor. but this is typical even after you do o geta large shaking there, we start to see those aftershocks happening after that, and the yellow circles indicate those initial reports of those earthquakes that were measured. the 7.0 that was off the coast. and then also the 6.0 that was around the fortuna area and just south of eureka. so we're still getting some of those aftershocks. but they are minor. that's a good thing as well as we continue to watch out for that possibility of any more aftershocks that will continue. the tsunami warning, as we mentioned, has been allowed to expire. so this is no longer the case on the map. and people who are out and about were hearing about that tsunami warning that was canceled, which is good news. and perhaps it was, as dave described, how those plates are meeting up underwater t

and the motion in this earthquake was sideways, like the san andreas.p the sea floor very much. in comparison, earthquakes that shove pieces of crust underneath the continent actually do lift and drop the crust. and that's what launches a tsunami. so the chances that this magnitude seven would have launched any sizable tsunami were around several percent. nevertheless, it's important to be aware of that possibility and get out of harm's way. >> what parts of the bay area would be most vulnerable to a tsunami if that were to occur? >> well, we had a dress rehearsal in 2011 where the magnitude nine earthquake in japan, though that tsunami wave went across the pacific. it moves at the speed of commercial airliners. so about ten, 11 hours later, it did a lot of damage in santa cruz. an enormous amount of damage in crescent city, but in the bay, not that much. and fortunately, the golden gate really limits how much wave action can come into the bay. in the bay, the most vulnerable area is emeryville, alameda and berkeley because that's pointing right through

the san andreas runs all the way northward.here are two other plates that converge in this highly seismically active area where the earthquake occurred. it's known as the mendocino triple junction. so it's not surprising that they had a major earthquake there. it was a seven, but the fact that it was over the open water lessened any damage. buildings could be damaged with the seven, and there are about 18 per year. so let's talk about those tsunamis near the coastline. well, basically ends up happening as a series of waves start to build. they pull the water away from the coastline and then the waves get larger as they come up near the coast. as that energy is forced up against the coastline. and that's when you get the inundation that spreads well inland. so always take it seriously. if another tsunami warning is ever issued and you happen to live near the coastline, definitely move to higher ground. go about a mile inland. if you can make a plan to meet up with your family. a meeting point, always a good idea and look for war

entonces, estos son datos preliminares, pero esa falla de san andreas un poco el historial.o como loma prieta, el más grande el 18 de abril de 1906 fue de 7.8 magnitud en san francisco y causó daños de propiedad y desafortunadamente muertos. actualmente también estamos monitoreando ese tsunami. y de dónde viene el término tsunami? es un término japonés que significa ola nami en puerto eshoo tsunami, ola en puerto. también es llamada ola sísmica y no típicamente olas generadas por terremotos. pero también pueden ocurrir debido a cosas como volcanes, que es algo que vimos en el 2022. en enero, debido a la erupción del volcán hunga tonga. ahora hablemos sobre la ciencia de los tsunamis. placas se deslizan y y liran energía cerca de las fallas en donde ocurren. dependiendo de la magnitud esa energía produce un levantamiento en la columna de agua. entonces imagínense esta ola y la energía que carga avanzando. se genera una ola o serie de olas que pueden llegar y por supuesto causar daños en un momento, en minutos. entonces por eso es súper importante seguir todos esos avisos y la

la falla de san andreas conectada alrededor de todo el mundo, donde se ven la mayoría de terremotos más llamado a nuestra comunidad aquí en el área de la bahía. hay que estar preparados y recuerde que a las 17:00 de la tarde, a partir de las 5, tendremos mucha más información en vivo en todos nuestros noticieros en la edición de la tarde. así es que muchas gracias. esperemos que todos estén bien y a estar informados. muchas gracias por su sintonía. le recordamos que en telemundo48.com podemos mucha más información en nuestra emisión de la tarde. por el momento tenemos nos están pidiendo de que estemos en alerta por si acaso vamos a tomar al gobernador gavin newsom dentro de unos momentos. nosotro

the san andreas runs all the way northward.her plates that converge in this highly seismically active area where the earthquake occurred. it's known as the mendocino triple junction. so it's not surprising that they had a major earthquake there. it was a seven, but the fact that it was over the open water lessened any damage. buildings could be damaged with the seven, and there are about 18 per year. so let's talk about those tsunamis near the coastline. well, basically ends up happening as a series of waves start to build. they pull the water away from the coastline and then the waves get larger as they come up near the coast. as that energy is forced up against the coastline. and that's when you get the inundation that spreads well inland. so always take it seriously. if another tsunami warning is ever issued and you happen to live near the coastline, definitely move to higher ground. go about a mile inland. if you can make a plan to meet up with your family. a meeting point, always a good idea and look for warning signs. the

just to clarify, you talked about one of these happening along the northern part of the san andreas fault. you also mentioned a different fault line. so we're talking about two fault lines in motion right now. yeah. and from what i understand, you know, from talking to doctor lucy jones, we talk about how the shaking on 1st may also create some movement on some nearby faults. so that's another thing that we have to watch out for once again, with these plates coming together, that shaking that's happening, that may be a possibility that we could see some other faults that are nearby also get a little bit more active because of that shift of the land that's happening. okay. well, you were talking about that tsunami warning. we got those alerts on our phones. i mean, every phone pretty much in the newsroom went off. likely you felt you heard that as well at your home. scott mcgrew. i know has been monitoring that of what you can expect when that happens, because we not only got these from shake alert, we got the national weather service. they sent that tsunami off to us. so these are these a

and earthquake along the san andreas fault. it's what we call a strike slip fault. that means a sliding side to side. but sometimes you get some underground landslides and that get the water going. and that's what concerned about today. and so we had this right along the mendocino fractures on that right where the san andreas fault makes its way out in the ocean waters. massive quake out there and there have been just dozens upon dozens of aftershocks. the main one, of course, the 7 point. oh, and that's a fairly shallow quake at only 6 miles. but they've seen a lot of activity out there continuing out there. i really odd just almost nonstop as we have numerous earthquakes continuing to rock there as we head throughout the evening. most of them are just small, but we're seeing some occasional for and some 5. so you can imagine the folks there in eureka in crescent city, still seeing and feeling some of those earthquakes affecting the coastline. the likely go on not only for weeks may go on for months. stand back to you. all right, lauren, thanks a lot to our other t

here what just happened this morning, we're basically at the far northern end of the san andreas fault. traveled all the way through california and to the offshore. a magnitude 7 gets us into the tsunami creating potential, because it turns out the movement of the fault was a horizontal strike slip movement which doesn't put as much energy into the water as a thrust with an upward motion into it, so the warning was good because there are a lot of very dangerous areas there, areas for high threat like crescent city and santa cruz harbor and such. ferndale, that whole northern area, earthquakes of this size are relatively common up there. for those of us down in southern california or farther away, southern california in particular, we have not had a major movement on the san andreas fault down there for over 300 years. so geologically speaking, we can say, it's overdo, we expect one, but mother nature isn't running on any time table. so even though it's been over 300 years, it might be 100 years or maybe it will happen next week. those are the kinds of things we don't know, but it's goo

the san andreas fault runs all the way up north towards the humboldt county area. and what happened was this was horizontal movement of the plates. if it had been vertical movements, we would have definitely seen some potential damage from tsunamis. but obviously the horizontal lessened the impact from a potential tsunami, which didn't happen. there was a warning issued. it was canceled later on. current wave heights are 5 to 8ft and the tsunami formation under the sea. the water is displaced as the crust thrusts upwards and the waves flow outwards. so that's basically what unfolded. we were fortunate that we did not experience the tsunamis like we did in 2011. kristin. >> dan, very fortunate. sandy. thanks very much. as we mentioned, and as you would expect, we have team coverage across the bay area. our crews are up and down the coast monitoring the impact of that tsunami warning. before it was lifted. >> we want to start with abc seven news reporter cornell bernard, who has made his way all the way up the road to humboldt county, which is where that earthquake s

like san andreas. there are three fault that come together. two strike faults and when the earthquake happens the alerts are based on the fact it is 6.5 or higher earthquake happening off of the coast. they send it out immediately regardless what fault. the problem is, they left the tsunami warning in effect for about an hour. within 20 minutes of the warning issued it was apparent it was on the strip fault not the one that would lead to a threat. a lot of people getting worked up for a long time as that warning was in effect when really the threat was apparently not going to come to pass after about 15-20 minutes or so. a lot of people worked up for longer period of time than necessary. we will talk more about the weather patterns heading towards the weekend coming up in just a few minutes >> paul, thank you. >>> the impact on transit day after the tsunami warning jen b asks, "how can i get fast download speeds while out and about?" jen, we've engineered xfinity mobile with wifi speeds up to a gig, so you can download and do much more all at

you can see the san andreas fault, which we know so well. here in the bay area. you have the north american plate, the pacific plate and the gorda plate. and we're hearing about some of the researchers from the usgs saying some of those plates just kind of slipping underneath each other, that is the main cause of this triple junction. and that's where you have a lot of seismic activity. and that's where unfortunately, we could have tsunami generation. but thankfully that is not the case for today. but that's kind of what's happening with the with the geology here with those plates all interacting with each other. so once again, the magnitude seven quake, you see the coverage this is that you can actually go on to the usgs website and report your experience, at least in terms of the shaking. and as you would expect, you'd expect some strong shaking out right near the epicenter. this is near near in humboldt county, near eureka, near a small town called petrolia and closer to ferndale as well. so that's that was where you can feel the strong shaking. and then down

it would take an earthquake on the hayward fault on the east side of the bay or san andreas on the west side that shook strong enough that it causes some kind of undersea landslide in the bay that would trigger more waves, but the bay is very shallow. >> reporter: david snyder, the tsunami warning coordinator for the national tsunami warning center, says don't expect a tsunami wave that's what's portrayed in films. imagine a severe flooding. >> it's not going to be that curling, breaking wave. it's going to be like a storm surge from a hurricane or very broad scale ocean flood that moves in and keeps coming and coming. >> reporter: the best advice from experts, check the tsunami hazard maps for the bay area and create your own disaster plan. >>> officials in berkeley are asking residents how they can improve their tsunami warning response. yesterday authorities shut down the road to marina for over an hour and police issued an evacuation order for west berkeley before the warning was lifted. >>> now to our north in humboldt county, this was the most noticeable damage from the 7.0 earthq

and that's the san andreas fault. you really need that up and down motion. not side to side, but nonetheless, a tsunami warning was triggered by this very large earthquake. 7 point. oh, and boy, that came right along the mendocino fracture zone. and that is an area of typical of some very large earthquakes. 7 point, oh, of only 6 miles deep. that's very shallow. just a 10. 44 this morning that got the bay-area scrambling because remember, those numbers move very, very fast. the water moving over 500 miles per hour. that means we're looking at a possible tsunami along the coastline right around noon here in the bay area. certainly scary whether there are scary conditions there, but numerous aftershocks continuing hundreds of aftershocks and many more to come along that fault zone. >> all right, lawrence, thanks a lot. there is a renewed push tonight in san carlos to build a pedestrian bridge on a highway. 101 overpass. this is in response to a death last month of a bicylist. the city says the project didn't happen because of funding which instead went to the

this is all part of the you see where the san andreas makes his way out in the middle. the pacific and then hard makes a hard left turn to become known as the mendocino fracture zone. and that's where we had that earthquake take place today. yeah, this is a large earthquake that happened and not something that you want happening on land. that's for sure. but anywhere. and the reason why we didn't get that a big tsunami. is this what we call a strike slip fault? that's where the earthquake boundaries are moving side to side instead of up and down get sometimes japan. they're what's called a subduction zone. so yeah, you still could get an underwater landslide and that could cause certainly a tsunami there. but this one, this was big enough for that was a 7 point. oh, that is a major earthquake happening at 10. 44 this morning and then numerous aftershocks after that. in fact, they've seen dozens of aftershocks, fairly large number one that was onshore. that was a 6 point. oh, at 6 miles deep. that also happening just about the same time. and you see numerous aftershocks

and then we have the san andreas fault that streams up the coastline. then takes a bend, a little bit of a jog around cape mendocino. and that's where all the activity is now. meanwhile, we have a local forecast to talk about, and the big change this weekend that you need to know. that's coming up in a matter of minutes, mike. >> all right. we'll see you soo, roberta. thank you. and just a reminder here to download the fox local app to your phone and smart tv. there you can find the latest updates on the northern california quake and the response right here in the bay area. new at 11. an experienced mountain climber from livermore is believed to be dead after going missing in new zealand. police say they believe 50 year old carlos romero and two other americans died while trying to climb the highest mountain in new zealand, mount cook. romero was reported missing monday after he and the others did not arrive to their pre-arranged transport after the climb. and tonight we are hearing from a san jose family after their teenage son died in a car crash earl

single bit of it happening right here at the cascadia subduction zone and the mendocino fault zone, san andreas also kind of feeds in and just meets all of these areas here. so we've seen at least 72 aftershocks ranging 2.4, 2.5 to 4.7.o a lot of activity when it came to that zone today, it rates as very strong to severe. when you put that shaking, how severe it was near eureka on the scale. so some considerable damage still could be uncovered to unreinforced structures. and then let's look at the 7.0 on this map and what you're going to see is it's considered major only 18 of those per year across the world. so extremely rare to get that 7.0. and the amount of energy that was expelled from this 1 billion pounds of explosives. so i think in some respects we did dodge a bullet when it comes to tsunami wave action today. and look at the history on the northern coastline. they're no stranger to it. worst tsunami damage in california was in 1964 at crescent city, a 9.2 alaska earthquake triggered a 21ft tsunami that hit crescent city. it killed 11 people. so again, tsunami warning is expired and th

una falla geológica que en este caso creo que ocurrió cerca de la falla de san andreas, aunque aún essa energía se genera una ola o serie de olas. al llegar a las aguas, llega con altura y puede causar daños realmente, especialmente en las comunidades costeras. ahora hablamos de los mecanismos de tsunamis, ya que aunque vemos que normalmente ocurren durante terremotos, también es posible de que ocurran debido a volcanes, que eso es lo que vimos de hecho en el 2022, en enero vimos una advertencia de tsunami debido al volcán de hunga tonga, que actualmente ya también hemos visto un aviso de tsunamis, el último aviso de tsunamis que vimos en el área de la bahía fue, de hecho, en el 2011, marzo 11, después de que ocurrió un terremoto de magnitud 9.1 en japón. también podemos ver tsunamis debido a deslizamientos de tierra, deslizamientos, submarinos e incluso también meteoritos que pueden ocurrir cerca de la superficie y en los océanos. entonces, un poquito repasar qué causa los tsunamis y por supuesto, recuerden de que cualquier cosa, cualquier aviso que venga generado por cualquier entid

now let's talk about the san andreas fault, the northern periphery stretches all the way out towards occurred. initially. i do want to explain something. that tsunami warning was issued for the west coast that included california, the bay area. it was initially believed that this was a vertical movement of the plates. now that tends to definitely trigger tsunamis, but in this situation, after they reassessed it, they found out there was horizontal movement of the plate known as a strike slip. uh. this primarily when plates passed side by side to each other, so it's less likely to create a tsunami. a current wave heights you will see are 5 to 7ft. this is not out of the ordinary. so in case you're wondering, tsunami formation, what happens? the crust gets thrust upward, the water flows outward. the water is displaced, and you will definitely see the water piling up closer to the shoreline. so that's something to keep in mind in the event that we go through another one of these on the earthquake magnitude scale, a seven is a major earthquake. you usually see about 18 per year. but wher

the northern end of the san andreas fault is up there, along with the north american pacific and the juan de fuca or the gorda plates meet a current wave. heights 5 to 7ft. that tsunami warning was canceled about an hour later because initially they thought it was vertical movement of the plates, and that would have caused a tsunami. but later on, they decided it was horizontal movement, which is why we did not see the tsunami materialize on the west coast or the bay area. some tsunami tsunami facts. they can travel hundreds of miles up to speeds of 500mph or higher. so this is really interesting. it will depend on the depth, the type and the magnitude of the earthquake. as we take a look at the formation of the tsunami, you will notice that once an earthquake occurs, the energy travels up and expands in all directions from where the earthquake occurred. so just keep these things in mind. you will notice that as the earthquake causes the tsunamis, the waves build pulling the water from the coast and you get right before inundation, you will get the energy being forced upward. so that

well, you have three different plates there around the cape mendocino area and then the san andreas faultof just jogs around cape mendocino, and you have the most activity right there in that mendocino zone there. so that's why we see so many earthquakes. yeah. yeah. >> but not many of this magnitude 7.0 is significant. it is significant. >> and it is something to take very seriously. and when people were saying, why did we have to evacuate, there's still people trying to line up and get back to half moon bay. it's because you'd rather be prepared and cautious than not. exactly right. thanks, heather. hi, everybody. and besides all of that, we had some doings going on today. some rain drops did smatter across the sidewalks just north of the golden gate bridge, up to 4/100 of an inch. and meanwhile, temperatures well above the average of 59 degrees in santa rosa. how about 70? it was also 70 throughout the tri valley, 68 degrees in mountain view, 69 and throughout cupertino and sunnyvale. saratoga as well. the rose garden district enjoying 69 degrees. 67 in through castro valley, clear ski

and the reason for that is you can see the san andreas fault running right along this area. but the main reason for all this seismic seismic activity occurring so, so rapidly, so frequently is that this is a meeting point of three tectonic plates, and it's often called earthquake junction or triple junction. so after a major quake like yesterday's, you can understand why there's. so there are so many aftershocks in a place where three tectonic plates meet together. now we'll continue monitoring the aftershocks. and of course, we'll let you know if anything stronger than 2.0 occurs. right now, we're looking at our weather, and this is what's coming our way right now. mainly clear skies today, but some active weather to our north moving into the pacific northwest, some clouds trailing out of that may swing through the bay area tonight, giving us partly cloudy skies, but it looks like skies will be mostly clear, allowing for some cooling overnight. the winds right now are very calm and conditions are mild. we've got sort of a 2 to 3 degree increase in temperatures since this ti

you've got the san andreas fault. then it makes a left turn right out here becomes what is known as the mendocino fracture zone. and that's the area where you can see a lot of these large earthquakes. in fact, we did today and that was some kind of earthquake, a magnitude 7 point. oh, at 10. 44 this morning and that set off many of those buzzing alerts on your phones as we were worried that that might generate a tsunami. what you do after that, you start watching love the buoys out there and at the bowie start to measure some rise in the water. that's a signature that there may be a tsunami coming about again. remember, the tsunamis are traveling as fast as a jet. they're going 500 plus miles per hour. some cases maybe 550 miles an hour. so there is not much time then you have an earthquake. this closest 275 miles from san francisco to generate that a tsunami. what you just don't have much time and by noon or so. it looks like that wasn't going to happen. in fact, we were very fortunate. we didn't get a tsunami. defin

. >> the fault that bounds the cascadia subduction zone and the san andreas fault. very complicated area called the mendocino triple junction, where these three things come together. and this earthquake was one of many. there have been about, uh, 7 or 8 of these earthquakes of this size or larger in the last hundred years or so. so they're not super common, but they're not super rare either um, this, this earthquake is a is an effect of the cascadia subduction zone. the the juan de fuca plate slipping forward toward a future great earthquake. but it also has very little chance of generating a tsunami because the blocks move side by side instead of up and down and it's the up and down motion that generates water motion for a tsunami. this was side by side, so very little chance of generating a tsunami from this type of earthquake, which is the good news obviously there's still talk of california being long overdue for the big one. >> a major earthquake that could cause significant damage are you surprised that that the big one hasn't happened yet well, yeah, the san

echar un vistazo a la zona mÁs activa, es en el condado de placer pero tambiÉn otros puntos como san andreasta jornada? vemos como esta linha llegara hacia la montaÑa, alli dejara nevadas bastante importantes hasta bien entrada la noche. veremos cÓmo las nevadas podrÍan continuar a los 4:00 p.m.seguirÍamos viendo la nieve y vemos entra otra lÍnea de tormentas que nos volverÁ a tocar precipitaciÓn. empezarÁ a afectar la bahia y san francisco y el Área de sacramento, asÍ como la costa norte en las prÓximas horas. una vez pase esta primera linea de tormentas, a partir del mediodÍa tengamos mÁs lluvias aunque mÁs dÉbiles debido a esta nueva linea de precipitaciÓn. podrÍamos acumular eso si, tanto por la line a de tormentas como la que llegara en la zona de montaÑa entre tres y seis pulgada de nieve, por ello tenemos esta advertencia de tiempo invernal. mucha precauciÓn nos espera una jornada en las carreteras bastante compleja maribel debido a estas nevadas que caerÁn desde ahora hasta bien entrada la noche. maribel: evitar estos ya que sobre todo a las zonas de la montaÑa, antonio te vio mÁs ad

a mega thrust quake, which could cause us and i mean, well down the road and it's also near the san andreas fault. so even though today's situation wasn't very impactful, the question is, it's stress that was released from this earthquake added stress elsewhere that could impact either of those falls. but there was an earthquake that was felt by people, even if there wasn't a big wave that came. so did that cause any damage there for the most part and no, not too much to really foresee that this is in northern california. i'm sure he rica and it's kind of sparsely populated there. the other thing too, you know, the rock out there has so many active thoughts and all these thoughts kind of crushed together and the crunchiness of the falls does a better job of dispersing real quick energy. so, you know, on the east coast again look way it go very far and talking about people on the west coast. the scene earthquake didn't impact as many people as far away because you have more of the energy sort of dispersed by the crashing of the falls. so northern california, they had some shaken, you're stil

side, maybe up and down down which you get more along like the cast furious induction zone or the san andreas ball is more inland. but really the categories adaptions on any one plate, one tectonic plate to dip, meet the other, and cause that significant up and down motion. and that's just didn't really happen this time. now sometimes you get something called salt, partitioning, where distress the builds up with the collision or chasing and pick time kind of goes in different ways. so in this case, that stress is released laterally but is stress was building you never know when that big one could occur with an up and down breast waiting for now a lot of stress release in the san francisco area. i'm sure that was meteorologist matthew food g. thank you so much. thank you. a turkey as president bridge of type air to on his long promise to end violence against women and girls, but cases of sexual assault and domestic abuse remain widespread rights groups have record is more than 400 families sides so far this year alone. critics accuse early on and his government of fostering a sense of impunity

andrea viajÓ a san antonio, texas, donde se ha realizado el mayor nÚmero de amputaciones derivadas denas ni vuelva estÁs de pie por sÍ solo jamÁs. su mÉdico tomarÁ la decisiÓn el quirÓfano. >> lo que Él decida cuando yo estÉ dormido en esa mesa, hasta donde Él diga hasta ahi va a ser y no me voy a quejar. >> somos hispanos, tenemos una gran carga genÉtica para desarrollar diabetes. desafortunadamente tambiÉn es alta en grasas, alta en alimentos procesados, un alto nÚmero de refrescos. andrea: si los hispanos adultos mayores tienen un 60% mÁs riesgo de morir por diabetes que los no hispanos imaginen la cantidad de los casos que recibe el mÉdico endocrinÓlogo alberto chaves velÁsquez. >> san antonio ha sido considerado una de las capitales mundiales de la diabetes por mucho tiempo desafortunadamente por la tasa de complicaciones y amputaciones que existe actualmente la poblaciÓn masculina. andrea: en estados unidos la diabetes afecta a mÁs de 36 millones de personas en el paÍs. >> son 5 a 6% mÁs alto que la media nacional. andrea: la gravedad de lo que ocurre en san antonio presagia lo

usually offer worry about and earthquake along the san andreas fault. it's what we call a strike slip fault. that means a sliding side to side. but sometimes you get some underground landslides and they get the water going and that's was concerned about today. and so we had this right along the mendocino fractures on that right where the senate fall makes its way out in the ocean waters. a massive quake out there and there have been just dozens upon dozens of aftershocks. the main one, of course, the 7 point. oh, and that's a fairly shallow quake at only 6 miles. but they've seen a lot of activity out there continuing out there. i really odd just almost nonstop as we have numerous earthquakes continuing to rock there as we head throughout the evening. most of them are just small, but we're seeing some occasional for and some 5. so you can imagine the folks there in eureka in crescent city, still seeing and feeling some of those earthquakes affecting the coastline. the likely go on not only for weeks may go on for months. >>thanks, lauren swell in san fr

so this earthquake occurred on the mendocino fault zone, which is the northern extension of the san andrease same fault that gave us the great 1906 san francisco earthquake. and it occurred not far from the northernmost tip of that 1906 shock. so there are three great tectonic plates meet, we call it a triple junction, and it's an unhappy junction in this case, there's a lot of internal deformation crunching of those plates. so this is california's earthquake hatchery. it's the most seismically active part of the state. luckily, not densely populated. and most of these earthquakes occur offshore. so while it is extremely active, it is a place where fortunately, the consequences are low. >> yeah. yeah. i mean, think about what if that had happened off the san francisco coast, right? highly populated, tons of tall buildings, i mean, and to take nothing away from the damage that was suffered way up north, it would have been a much different scenario if it had hit, let's say, in the heart of the bay area. >> you're absolutely right. you know, the rule of earthquakes is pretty much like the rule

we all know the san andreas fault to running up on this portion of the map here, and we have a lot ofsmic activity. we have multiple plates, the pacific plate, the gorda plate, the north american plate, and a lot of movement, a lot of interaction. and you can see that line here. this is called the mendocino triple junction. so over the next you know it seems like every few years we're talking about a significant earthquake for this portion of the california. and today of course we had that strong 7.0 quake. but thankfully it was not a subduction zone earthquake. it was more of the strike slip and that did not generate a tsunami. so this was the magnitude 7.0 earlier today. and if we were to show you all the aftershocks, these are aftershocks above magnitude 2.0. in fact, let me show you on this map here. if i put a query box around this whole area, we can show you the amount of seismic activity just since that mainshock. and that's about 159 reports since that main event from earlier this morning. now back here in the bay area, we are talking about this lots of sunshine. thankfully we

the earthquakes are what we call strike slip earthquakes like the ones that often occur in the san andreas fault, where the motion is sideways. if it's sideways, it's not displacing water. it's moving sideways relative to it. so its effectness in generating a tsunami is weaker. however, as a responsible public official, you never know whether the earthquake is going to exactly have that kind of mechanism. it could be displacing the surface and -- the sea surface, and therefore generating a tsunami. so especially an earthquake of this size, you take all precautions. >> so there are a couple things. you mentioned public officials. i want to update folks. a national weather service tsunami official on nbc bay area's live feed said we're not getting any indications that we have a destructive tsunami for the west coast. in addition, from the governor's office, the governor has been briefed on the earthquake off the coast of northern california and the resulting tsunami warning. he is now meeting with state emergency officials and working to insure californians are safe. the state operations cen

this along where the san andreas fault generally runs out into the pacific ocean.re are several plates interacting there. and while they've got just a ton of activity, the areas shaded in yellow, those more than an hour old in red. those are more recent quakes. but you can see the larger quake happening early on today. that one that magnitude 7 at 10, 44 6 miles deep, that's a fairly shallow quake. but then we've had others. there have been other large quakes that happen as well. there's a 6 magnitude 6 at the same time. so not only there, but we also have some quick showing up in parts of northern california numerous quakes in this area around here continuing that's typically known as a places to see numerous earthquakes here. interesting to see that getting activated at the same time as that fall was rupturing just off the far northern california. so yeah, got to keep that watching that as we could see some more numerous aftershocks continuing weather wise. she's been a beautiful day. it is a little hazy outside right now in spots. but generally, yeah, another ni

as we take a look at the fault lines, the san andreas, the northern part of it, runs all the way up to the mendocino area. there are three plates that converge, known as the mendocino triple point. the current wave heights are 5 to 7ft. we would have seen some changes, some drastic changes had the tsunami actually occurred. >> all right, sandhya, thank you so much for that. we will check back with you in a bit. along the coast of the peninsula, hundreds of people decided to evacuate in the minutes after that tsunami warning was issued. abc seven news reporter tim johns was in half moon bay for us all afternoon. here's how people reacted. >> yeah, guys, i can tell you, the waters here along the coast of half moon bay have calmed down a lot over the past couple of hours. but i can also say that earlier this morning after that tsunami warning was issued, residents here wasted no time in heading for higher ground. heavy traffic along coastal roadways in san mateo county thursday after a 7.0 earthquake and subsequent tsunami warning earlier in the day, many residents in town along the coast

here you have the san andreas fault and it kind of jogs, takes a left bend, turn right around cape mendocino and this is the most active structure area for earthquake activity in the entire united states of america. so it's not unusual to hear or feel the earthquakes in these areas, to see a 7.0 is a little out of the ordinary. we're going to continue to update you on the earthquakes, the tsunami, and also your local weather forecast. when will begin to cloud back up again. and mike, that's coming up in just a few minutes. >> all right. we will see you soon roberta. thank you for that. as roberta touched on the tsunami wave was projected to hit shortly after noontime today in san francisco. skyfox was overhead. ocean beach at that time, and the fire department was there telling people, hey, get out of the area and head to higher ground. some stragglers, though, as you can see here, still out there on ocean beach. ktvu christien kafton live tonight in the city. and christian, i mean emergency crews there. they really moved quickly on this one. >> yeah, those emergency crews, mike very clear.

here you have the san andreas fault, and this jogs up the coastline here. and then it wraps around to the left around cape mendocino. we do see thousands of earthquakes there per year, but they're too small to detect a 5.0 and above usually happens once every two years. we'll talk more about your own local forecast. that's coming up in a matter of minutes. all right. >> we'll see you, roberta. thank you. a reminder for the latest information on this earthquake and the impacts to northern california. download our fox local app. it is free to download on your smartphone or your smart tv. >> a teenager shot and killed in the east bay over the summer. still ahead here at ten. the big break in the investigation. >> plus, it's just been very shattering for everybody. and i think people are still just in a state of shock. >> a community in northern california in shock after a school shooting. what investigators revealed today about the suspected gunman and the two young victims and a former coach at a school in the bay area, pleads no contest to a number of (♪) wh

and this is a very active region in northern california, as you can pick out the san andreas fault running through the portions of the bay area. and also you can see the multiple plates here, the gorda plate, the north american plate, the pacific plate, a lot of interaction. and that one area, that mendocino triple junction, that is where we have some a lot of active seismic activity. that was the case today with that 7.0. but thankfully not a damaging a tsunami for us here in the bay area. we will continue to keep an eye on the aftershock sequence. we'll have more coverage coming up in a little bit. >> all right, mark, thank you. and a reminder for the latest information on the 7.0 earthquake and impacts to northern california. download our fox local app. it is free to download on your smartphone or your tv. well, coming up, the sentencing date for the man charged with murdering the cousin of giants pitcher logan webb, how long the convict will spend behind bars for selling a fentanyl laced pill. also ahead, the manhunt continues for the unitedhealthcare ceo's alleged killer. the new evid

. >> you have at cape mendocino, particularly, is the end of the san andreas fault that travels all the way up california and ends at cape mendocino, where it transitions into the cascadia subduction zone along the coastline so there's a big difference in the kind of motion that occurs that can cause earthquakes in that region and part of that difference is taken up by another fault that goes straight from cape mendocino directly offshore, almost perpendicular to the coastline, that has earthquakes that are like the one that occurred today that that region has had a large number of these types of earthquakes, both small and large, that occur and do not normally cause a lot of damage on land, although they they show up on our seismometers. but this one was close enough to do some some significant shaking nearby most of the earthquakes on this fault system that's offshore will be strike slip in character that means that the seafloor will actually be moving horizontally and not vertically. a vertical motion of associated with an earthquake offshore in the seafloor would cause a tsunami and

. >> we know about the san andreas fault, which runs along california. >> that that was always the fear that that would be the big one. >> there's also a fault system called the cascadia, which runs the vancouver island. it's a little bit north. that's this quake might have been from there. but this is a big wake up call for california, especially in the north. oregon coast there. this is the 12th biggest in history there. and no tsunami warnings. you know, permanent one. it was a brief one, but a good test for people to start thinking about what's my route of evacuation to high ground, because when the really big ones happen, you got maybe 15 minutes to get away from those waves. >> now, maybe 15 minutes. i mean, we've seen what a tsunami and the horror that it can bring we've there's been talk of the big one for a long time, especially along when you're talking about california is west coast infrastructure ready for something like that i don't know that there's any human infrastructure ready for a 9.0 quake. >> and you can tell the power of a quake, usually by how long they last. a bi

and so he largely horizontal motion as a similar to like in the san andreas fault, which is the most asphalt california, has earthquakes and those largely have wars. also motions generate a lot of shaking. but it's not like one piece of land goes way up higher than the other. and there are other faults, for example, the cascadia subduction zone to the north. that's the long fall that race is offshore. the entire distance out of intake offshore canada. and want to have a lot of vertical motion possession. one plate diving under another. so in this case, 2 plates sliding against one another and largely horizontal motion. and so that there's less likely to lift up the water and and create not that gets itch the ground actually move vertically point that the. >> yeah. imagine taking like a couple of water and a knife. and sir, slicing through the cup of water and then nothing really moves night. just sort of goes through and the waters move really. >> great. thank you for that analogy. and then explanation next monica woods affiliation fees? >> i they're monica woods, abc, 10 in sacramen

henry lee covered the case here in the bay area back in 2003. >> animal rights activist daniel andreas santer a manhunt that lasted more than two decades. the 46 year old suspect appeared in a london courtroom a day after being taken into custody. san diego is charged with planning two bombs in august 2003 at chiron corporation, a biotech company in emeryville. the second bomb was rendered safe before it could explode. >> all we know that there were possibly plastic devices with egg timers as a part of the device. >> a month later, the suspect allegedly set off a bomb strapped with nails at shaklee corporation, a nutritional products company in pleasanton. authorities believe he targeted the firms because they had done business with the new jersey lab that conducted animal experiments. the bombings did not injure anyone, but authorities say the devices had the potential to do great damag, especially because they had timers. >> anyone who uses a timing device for a bomb makes a sophisticated bomb. >> sharif ibrahim was on the uc berkeley bomb squad at the time of the incidents. >> with all