nbc business reporter joins us from the usgs headquarters. it's a crucial time for the usgs analyzing the data and giving answers here. >> yeah. you're right. that's one of the reasons scientists from here at the u.s. agree logical society were among the first on the ground yesterday. they wanted to figure out where the, was centered but also find out what happened kind of an earthquake it was. we now have a better idea of what kind of earthquake this was thanks to research done sunday by the u.s. gee logical survey which photographed and mapd the area. >> this was sort of in some ways a well-behaved earthquake. >>well, behaved when it comes to knocking things off shelves and buildings, but what the usgs calls a consistent quake that scientifically makes sense. >> it's this movement, the slip that releases energy, stress in the rocks and that -- those are the ways that are the shaking that produce the damage. >> damage that may have been increased by soft ground near the epicenter. >> and these actually can amplify shaking that can increase i

the usgs says to be prepared for more aftershocks. in the next seven days there is a 14% chance the area will experience some that may be a 5 magnitude or higher. >> we do expect over the next couple of weeks to have aftershocks continue. as i said the probably of events, moderate events felt by the folks in napa, vallejo, between 3 and 5, those magnitudes will probably see between 2 and 1 of those in the coming days. >> reporter: these are centered around the west napa fall. it's a possibility the aftershocks are impacting other faults nearby. this is their researchers are studying. they have personnel in the field inspecting the damage to the street. janine de la vega, ktvu channel 2 news. >> thank you, janine. >>> in just the past fewer hours, the solano county board of supervisors voted to approve a state of emergency declaration for that county. damage estimates for buildings on county property is nearing a million dollars. much of it is in vallejo. almost a dozen buildings have been red tagged. this allows the county to apply fo

the doctor and usgs are developing that system. we know we're not going to be able to predict a quake days in advance but just those few minutes. can you stop the trains. people, we have evacuation plans in place everywhere on the coast and warnings on the coast. we practice drills in schools on the coast. we have measured impacts and we have found safe havens. we would benefit if this was coming. the doctor made an excellent point and i won't belabor it. i have asked for hearing on induced seismicity. i think this should have an individual hearing of its own, although i believe we'll be able to touch on it a bit here today. it is relatively recent phenomenon, which is not well studied or well-known. there have been swarms of quakes in areas there have not been before and it's attributed to reinjection of waste, which includes lubricants, oil, and proprietary chemicals which we're not allowed to know about. this is regulated under safe drinking act. the thought is we want to protect the water table. it turns out there are other ass

the usgs says they did not see the napa quake coming.kpix 5. >> napa wineries are scrambling to clean up for the busy labor day weekend. thousands of bottles of wine were smashed in the quake and an untold number of barrels was damaged when they rolled right off their racks. some wineries are closed until crews can install temporary braces to reinforce the building. >> that would allow to us get inside, clean out the contents, examine the structure and look at what we hope will be a plan of putting it back in place. >> there's also concern napa's earthquake will set the country's wine industry back a bit. napa valley's vineyards produce 17% of the nation's wine and contribute $50 billion to the u.s. economy. >>> some developing news in san francisco. a three-alarm fire forced 7 families out of their homes overnight. that fire started around 12:30 ocean avenue and san jose avenue. four structures including two apartment buildings, a gas station, all damaged in the fire. 23 people, two dogs, did get out safely though. no word on what may h

we've been talking to the usgs all morning. you're seeing pictures of people sending in what they experienced this morning. intense, prolonged jolts. 6.0 is the largest that we've seen since 1989 in loma prieta. chp has checked the structural landmarks of the bay area and most of the issues have been confined to the roadways. i am joined now by brad thompson who is part of the fire and emergency crews working the races up there. brad, are you lending your expertise and help to local officials? you're from indianapolis. this must be a bit of a novelty for you? >> yes. to be very honest with you, i just received a couple of text messages. being from the midwest, we shook it off and went, okay, that was weird and went about our night. i'm kind of just now learning what the effects are and what that's going to mean for us and what we need to do. >> have there been any overtures to you to lend your help and other folks up in san rafael, a myriad of fires in napa, bricks on the roadways, cracks in the roadways. has anyone reached out

what we're taking a look at right now is the usgs scan here of the north bay. we don't have any markers, no indications of major aftershocks over the past hour, so a shred of good news. of course, we're going to continue to track that and more on the latest probabilities of the usgs. the possibility of a 5.0-magnitude quake or greater has went down. again, today at 12%. aftershocks, 3.0 to 4.0, this number also went down. there likely could be one to ten of those throughout the next seven days. back with the full forecast later on. >> all right, jeff, see you shortly. >>> the multibillion dollar wine and tourist in napa is linked in so many ways to san francisco, that's why mayor ed lee paid a visit to napa. both are tourist he cmeccas, bud buildings and earthquakes are a perilous mess. >> how do we keep them safe and what can we do by way of engineers in earthquake country to keep historic preservation, but balance that with safety? >> it is a tricky balance. mayor lee offered napa's mayor whatever technical assistance san francisco can provide. he also encour

at least according to the usgs. aftershocks, 3.0 to 5.0. we will get another update coming up at 3:00 a.m. and we'll have more on that in our morning show at 4:30 in the morning. we'll get you to the skycam. we have mainly clear skies across the bay. you can see 62 in the south bay. for the peninsula, 63. areas of fog at the coastline. a little on the chilly side. tomorrow morning the most important thing for to you notice, after having a lot of mornings starting with the fog, it won't be completely fogged in tomorrow. we'll get a little blue sky with 62 degrees. that sun rising at 6:35. it will be hazy in the east bay with 68 degrees. sun by the noon hour. to the north bay, clearing by 11:00 a.m. i want to you notice the temperature will go hotter. about three to five degrees. a beautiful day expected in the south bay. 83 for the high. any kind of bay influence, it will heat to 87. for the peninsula, for san francisco, mainly 60s. it will feel close to the 70s throughout downtown. for the north bay, east bay, nasa will continue to clean up

the usgs said that could go up. preliminary magnitude could go up and it could go down as we get information from their data stations throughout the morning and the possibility of aftershocks. we've had one possibility of one in napa this morning at 5:01. we are keeping an eye on the usgs website to see if that will be updated. we got a report in from the bay city news service. california highway patrol is reporting a portion of the state highway 37 in vallejo has been closed. sonoma boulevard. for evaluationing if the 6.2 magnitude quake. the us geological survey is reporting it took place about three miles northwest of american canyon at 3:20 this morning. pg&e is reporting tens of thousands of customers are without power in the bay area, particularly in napa and sonoma county. their website, their pg&e outage map is showing significant outage in several communities and that includes the east bay as well. no damage to roadways in the south bay, peninsula and east bay. this is taped feed we have coming in from one

jessica turner, a geofizz consist with usgs will talk to us more in a moment. stay close. we're back in just a second. moderate to severe is tough, but i've managed. i got to be pretty good at managing my symptoms, except that managing my symptoms was all i was doing. when i finally told my doctor, he said my crohn's was not under control. he said humira is for adults like me who have tried other medications but still experience the symptoms of moderate to severe crohn's disease. and that in clinical studies, the majority of patients on humira saw significant symptom relief. and many achieved remission. humira can lower your ability to fight infections, including tuberculosis. serious, sometimes fatal infections and cancers, including lymphoma, have happened; as have blood, liver, and nervous system problems, serious allergic reactions, and new or worsening heart failure. before treatment, get tested for tb. tell your doctor if you've been to areas where certain fungal infections are common, and if you've had tb, hepatitis b, are prone to infections, or have flu-like sympt

we're hearing from the usgs maybe in the next five to seven days. while it's important to get some of this debris out of the way, if you feel anything shaking again, you want to take cover. >> talk about the damage, but we are now just seeing that damage right behind you, jeff. >> as we continue to take live pictures of downtown napa as well, we saw a lot of the historic buildings structurally damaged there. we want to go to michelle roberts. she's actually live with the usgs this morning with the very latest updates we have on this earthquake to hit napa. michelle. >> well, just in the last hour, though, there have been a handful of aftershocks so far that brings us to 40 aftershocks. the biggest being 3.6. the latest information out of usgs this morning is it has been upgraded from 6.0 to 6.1. can you explain why those numbers have been changed? >> so if you add in a few more digits of precision, the magnitude of this earthquake is right around 6.05. so that last digit, as additional statements come in and the analysis is refined, that last digit

according to the usgs it was followed by 2.7 and then a and then, also, a 2.8 at 6:12 and a couple ofs including one in napa and also in the very small category. >> they came 45 minutes before the biggest aftershock at 3.9. we joined by jennifer producer with abc7 news. >> what did you feel, jennifer? >> i started feeling the headaching and it got stronger. [ inaudible ] it was just an after shock. >> did you have travel standing up? what did you experience? >> i was still in bed i just woke up. i didn't know what to do. i put the covers over my head. >> that is what a lot people want to do. i know a last people compared this to the going of the evening on sunday with a former photographer in vallejo saying the beginning, the first few seconds felt like the big one seconds felt like the big one from sunday but then it >> we have been on alert. i didn't experience that. it ended quickly. when i realized what was going on it was over. >> have been walking away downtown napa and it is dangerous to be walking around. we got a tweet from a news reporter who said it shook the car and police

here are the usgs probabilities that come out every 12 hours. we'll get the next update at 3:00. the probability has lowered again today. it's only at 12%. and the aftershocks ranged 3.0 to 4.0, we still could have about ten of those. this is just a probability. it's not an exact forecast. we'll take you into our forecast here across the bay area. and what you're going to notice, the biggest thing today, a lot of sunshine. that fog did start to clear out and it left areas with quite a bit of sun. as you can see in the sky camera network, sunny skies in the peninsula, east shore. san francisco. also in the north bay looking fantastic for tonight. and blue sky, back toward the tri valley dealing with 81 degrees and a light wind. we'll take you into the microclimate forecast as we head through our winwednesday. the fog pattern is getting cut off just a little bit, that's going to make all the difference and help the temperatures to go up three to five degrees. the more you get away from the bay and any kind of breeze, you're going to see temperatures heat up. morgan hill, 92. pacifi

the usgs has just confirmed three aftershocks from the napa quake the first a 3.9 around 5:33 a.m. centered less than two miles from american canyon a little south of the original quake. a 2.7 and a 1.9 were felt shortly thereafter in a matter of four minutes. now, the red dots are today's epicenters. the yellow is sunday's original quake. several calls to the newsroom from people who felt the rumbling. my sister lives in martinez. she said it was a good sized shaker. we'll bring you any updates as they become available. >>> crews are working to get water service back to everyone in napa. the schools are closed again today. more than 200 people were treated for injuries from sunday morning's earthquake. building inspectors in wine country have another busy day ahead of them. kpix 5's ryan takeo is in napa this morning where dozens of buildings are too dangerous to enter and ryan, you mentioned that you did not feel these aftershocks. >> reporter: that's right, michelle. we're talking 70 -- [ pause ] >> reporter: that's right, we're talking 70 of these read tagged buildings. i didn'

according to the usgs, we are not out of the woods yet. the next seven days, on the west napa fault an adjacent fault, we have the chance far 5.0 magnitude or larger. every day we spasz good because it means we get out of the woods. this should dwindle down to about 10% overnight and even more so as we head throughout the next couple of days. then our focus shifts to the chance for 3.0 and above aftershocks. two to 15 likely throughout the next seven days. we're still going to seem the earth around that west napa fault shaking. we're not done just yet. when it comes to your forecast, the good news is for that clean up effort happening up in napa. we're going to get some nice weather, at least for the first part of the day. it'll be warm out there later on. so the earlier you can get out there, the better off you will be if you are paar taking. i want to show you what's happening though, they have this area of low pressure, counterclockwise rotation, and this is what's ushering in the flow bringing in that cool ocean air all the way inland.

now, the usgs says the quake happened at a known fault known as the west napa fault. the scientists say the ground was moving 2.3 seconds during the shaking. >> how fast the shaking occurred is enough to deform the ground and that is why we are seeing a lot of broken pipes and so forth. because of how fast the ground moved. it caused enough strain in the ground that the pipes are -- they can not accommodate that motion. no. it was -- this, this quake was a strike flip. so, lateral motion, and, multiple faults right in that area. again. most of the damage is to older brick structures here in downtown napa. >> reporter: well, today's quake, a good test for an early warning system, listen to it. beep, earthquake, light shaking it in three seconds, beep, beep, beep. >> they use sensorred around the state including at the seismic lab in berkeley. they measure the waves for the first to reach the sensors. it gives a 10 second warning right now. it may not sound like a lot of time but it can be enough time to stop what you are doing and maybe not get hurt. >> well, it is not

but the usgs had it at a 6.1. it is now downgraded to a 6.0 earthquake centered near american canyon. four miles northwest. it is close to the napa airport. >> and gives us a historical perspective. a lot of folks have not lived in the bay area for a long time. people moving in. people moving out. this is the strongest earthquake that we have had in the bay area since the 1989 earthquake, which of course happened during the bay bridge series. the world series, october of 1989. that was a magnitude 6.9. was this one stronger? no. but was it the strongest since? the answer is yes. it was relatively shallow earthquake. the shallower it was, the depth it was. it was 10-kilometers. shaking was felt as far away as nevada and kings canyon, california, and you've heard a lot of people say there was a lot of rolling. obviously was a jolt. there has to be a jolt, but a lot of rolling and the duration of this lasted a long time. there's a reason for that. this was a slip strike earthquake. not all earthquakes are created equ

but usgs's lucy jones feels it's important also for the government to make investments to the publictem being created. >> the reality is it's a benefit for all of us, something like 40 states have some earthquake risk. we're going to figure out how to do it here because so much more is at stake but once we do it it's something we can give to everyone. >> reporter: so far the system's only been partially fund bid kong and in california governor jerry brown signed a bill supporting development of the system but stipulated that no general state funds could be used. mark is the director of the governor v governor's office of emergency services. >> government will provide a funding stream but not all the funding. we're looking at it in a more inno vaiflt way, an outside the box thinking to incorporate our partners in the private sector. >> reporter: in long beach, deputy city manager reggie harrison doesn't care how the system is funding, he's just anxious to get it implemented in his community. >> it can literally save lives, this technology. seconds really do count in this industry and

. >>> the usgs released this map showing 1,400 people reported feeling the aftershocks. the blue represents the area where people reported feeling shaking from clear rake to san jose. we talked to an expert from the usgs and he said it is not over. >> yesterday, the probability of a 5 aftershock was 25 percent, one in four chance. that chance now is probably lower today but we are going to see more aftershocks. >>> looking at the aftershocks, so far, there have been no reports of agirl damage. >>> the first and strongest aftershock hit near american canyon. >> we had a relatively big one a 3.9 aftershock and now we just had one at 6:12, a 2.8. >> a lot of people felt the shaking and have been calling the newsroom. >> it was a strong jolt getting ready for the day and i felt the jolt and the shaking. >> the house started shaking going around in a circle like it did the first earthquake. >>> many our twitter followers tweeted us and some felt several of the earthquakes and others only the 3.9 but not the smaller ones and all say the shaking lasted were shorter time than it

still very early out there, 5:33, so far no immediate reports of injuries, but the usgs estimates moren 100,000 people experienced "very strong shaking." cnn meteorologist jennifer gray, you've been talking to some people in the bay area this morning. what are they telling you? >> i've seen just some reports from former co-workers who are saying that some of the buildings in the downtown area of napa total loss, just as you've seen, also the buildings, houses on fire, we've also seen, you know, the water mains busted. it's just been a mess across a lot of these neighborhoods. we're seeing pictures right there, one of those homes on fire, and so a lot of lecleanup going on. the brick buildings, older buildings in the downtown areas, structural damage, a lot of these stores as you're seeing there, inside, you can see wine bottles just completely broken on the floor, just total disaster inside, not only in the stores but people's homes, very similar scenes like you're seeing there, things off the shelves, in people's kitchens, living rooms, seeing messy situation. of course like you said,

of an interview today at the usgs office. that one had a magnitude of 2.7 but the biggest after shock hit at 5:30 this morning with a magnitude of 3.9. >> after the earthquake there's still some stress released so the after shocks are just little tiny areas. >> scientists are still analyzing the quake to see if it affected nearby faults or might have made another major quake more likely. they say after shocks will probably last for about two weeks. of all the after shocks that happened today the 4 strongest began at 5:30 this morning. just a few minutes later a magnitude 2.7, then at 6:12, 2.8, followed by a 3.0 later. they were all centered in napa and american canyon. >>> san francisco mayor visited napa today to see how his city can help rebuild some of napa's historic buildings. >> just the challenge of the day. because places like napa wouldn't be the attraction without these historic buildings. so how do you do that in a safe way. >> he took a walking tour with the napa valley mayor. san francisco has a lot of older bui

this is a map that will be changing all morning long, the usgs, widespread shaking across the bay. that starts as the epi center. probably shading yellow, colors as well to indicate strong shaking. magnitude 6.1. one after shock to report above a 2.5. >> the photo, videos are starting to filter in to the newsroom. historic buildings in downtown crumbled, not completely. we are getting our coverage rolling here. >> bill, is joining us, what do you see? >> i'm doing out and about, see how much damage there is. >> what did you feel? what are you seeing? >> reporter: i'm in vellejo, there is considerable amount of water main breaks. a lot of gas lines have been reported. there is a lot of commercial business windows that have shattered. >> i know you are a retired firefighter, take us through what is happening with emergency services. everyone is activated and trying to get to the calls. how does this work for the emergency crews? we are getting calls from people waiting outside in their cars, trying to figure out what is going on. >> reporter: first thing, people have to realize the f

we talked on the usgs. over to mark now to give us a look at what we are dealing with in terms of the shaking. you have that very cool graph behind you i can't from the berkeley size month logical lab. the effects of the earthquake, unfortunately, fire that is a big impact with earthquakes, usually following the earthquake you get the big fires. that was a big problem this morning. shaking you can see setting up at 3:20 this morning and the shaking lasted estimates around 10 to 20 seconds. ground movement two feet per second for 20 seconds. that has caused problems. the unfortunate part, we have the threat of aftershocks in the forecast, at least in the forecast, earth quake intensesy, the area shaded in orange, that is intense shaking up toward parts of napa, toward american canyon, vallejo, so gnome may canyon as well. -- sonoma canyon. also very valuable this morning, this is what the public reported throughout the morning and throughout the early portion of the afternoon. so far over 16,000 responses ba

>>reporter: usgs estimates it cost 1 million dollars to get it up and running for california an another 11 million a year to maintain and operate it. but for now lawmakers have not approved the money. >> we believe that once the system is funded we can go public within two years. >> cheryl jennings reporting. that would be nice but what would you do. would that be enough time for you if you had a 10 second warning. cheryl asks to you comment on our facebook page at this site. >> 10 seconds warning. 10 minutes would be great. >> ten minutes would be great. the probably like 10 seconds what can i get. fight all right so how is the weather. seemed cooler today. >> it was below normal in many areas but we are going to see the temperatures rising up well above average this week so get ready for some summer heat as we close-out the last week of august. all right let's look at live doppler 7hd and we talk about some 90's coming our way. too cool for you hang in there warming trend will get under way tomorrow. live doppler 7hd is watching low clouds along the coast pushing in towards the bay to

there's more than 50% chance from what we're hearing from the usgs of a 5.0 or larger. there's also the chance, albeit small of -- a 5% to 10% chance that this 6.0 quake should have been a 4-shock to a larger quake. so that likelihood gets lower minute by minute thankfully. >> those are things that -- >> reporter: let me walk you around here too -- sorry paul -- i was just going to show you, since we're talking about the building structures here, just about an hour ago we heard this loud crashing sound. that happened to be the top of the building you're looking in the corner section of downtown napa. that piece started to fall down. it is just hanging there. so no one is allowed in that area. we will not be going near there. and that just shows you that in any second, who knows what is going to happen to some of the buildings? others, smk dab in the middle of the street are just fine, the restaurants that just opened seems to be just fine. law offices, those are gutted and this bail bonds office and where this car is on the corner, also suffered damage. you're really ge

and literally just after we finished the last hit the usgs did update the probability. the probability now is just at 16%. so a little shred of good news in napa as you continue the cleanup. they lowered the aftershock numbers. the aftershock that range 3.0 to 5.0 likely two to 15 are possible within the next seven day period. let's get you the rest of the forecast outside. we have beautiful weather in the south bay. a nice cool breeze. you can see clearly here. 77 degrees fog beginning to roll into the peninsula and 75 and mix of sun and also some fog currently san francisco. as we take you to tomorrow's forecast, after the cool breeze today, we think numbers will going to go up just a little bit here. especially throughout the trivalley. likely average 89. not a bad day but certainly going warmer. 84 in the north bay. we'll see sun by the noon hour and sun on san francisco by 1:00 p.m. south bay looks to stay sunny and 83. ahead in the forecast all the way last week we were talking about how active the pacific is. it remains active. we have the tropical disturbance is

usgs says the chance are 29% for a magnitude 5 or larger in the next 7 days 5% for a 6 or greater. the reason being a sort of domino effect triggered by the first shock. >> you redistribute stresses in the crust and you have nearby faults that get stressed. so you trigger faults that are close to failure prior to it. the larger the event, the more of an area you change stresses on so the chances of being on the fault that is close to failure are larger. >> reporter: there was a 6.9 quake in peru yesterday but it's unrelated. the napa quake slightly raised the chances on another big bay area fault like the hayward. >> there is a slight chance that this is a foreshock to a larger event but the best chance so far from what we can tell is very small, less than 5%, probably significantly less than 5% but that chance does exist. >> reporter: the good news is that the chances for further shaking are going down, the more time passes, the less the risk. in menlo park, len ramirez, kpix 5. >>> lawrence and i have seen the video and pictures. but you were there. is it worse than we thought? >

. >> the usgs updates things every 24 hours when it comes to the risk moving forward.ow what happened already. where do we go from here? the numbers are getting better. the likelihood of more significant earthquakes is going down. the risk of a significant aftershock, i know we had that 3.9 magnitude this morning, the risk of a bigger one that's 5.0 magnitude or greater over the next week, remember right after the earthquake it was 54%? that's now down to 12%. it's not zero but it is much lower and that risk that the 6.0 magnitude quake on sunday was a foreshock meaning something bigger is coming, that was 5 to 10%. it is now down to 2%. the risk isn't nil. but it is decreasing and that's a good thing especially for those folks in vallejo, american canyon, mare island and napa and st. helena. outside now weather-wise we are warmer. livermore 84 with sunshine. santa rosa 80. san jose 76. downtown san francisco 68. san bruno currently 71. tonight will be a mainly clear night except right along the coastline and in the city of san francisco we will have fog. upper 50s in

now we are still under an aftershock warninging, according to the usgs. over the next seven days probabilities continue to go down for a 5.0 or larger. right now that is at just 12%. more coming up in few minutes. >>> you're seeing the early warning in action. >> witness new technology in real-time. we were actually at the usgs this morning when the alarm sounded, and we saw the early warning system work. he had about six seconds of warning for this particular aftershock. now seeing their homes and businesses in shambles has a lot of people thinking twice about earthquake insurance. about only one in ten californians actually have it. most of us think we'll never need it and that it's too expensive. cheryl hurd is live in santa clara with tips on how to decide if quake insurance makes sense for you. and a lot of people thinking about it now. >> reporter: i'm also thinking about it, because i don't have earthquake, in jessica. but the homes you see here are new construction and would probably withstand a major earthquake. but we do live in earthquake count

. >> the usgs wants to get more seismographs in urban areas for better measurements of ground movement. right now napa has one seismograph. it is one that recorded sunday's quake. it's installed at downtown joe's brewery and restaurant. it's a new type of seismograph that communicates to the usgs through the internet. >> you know, i just like science and, uhm, we were going through earthquake retrofit here so i was studying about earthquakes, found the net quakes program, applied for it, i didn't remember i applied for it. so when they called me years later to install the device i was surprised >> since sunday's quake, the usgs says it wants to install more of the devices in the napa area. >>> crews are hammering away tonight on 280. the freeway is closed northbound from the 101 interchange in san francisco all the way to king street. the construction is going to make that freeway safer. as anne makovec shows us, in the meantime, it's causing some headaches for drivers. >> it's insane. >> reporter: traffic backups started yesterday afternoon and ramped up again for this morning's commu

usgs reported that the time and the duration and the time is around 10:22. a shaking 10 to 20 seconds in general is basically what i experienced as well. magnitude 6. 0 and the upper center of 4 miles northwest of american canyon and we have been seeing all the damage so far. strongest one was at 5:47 and that was a 3. 6 and the most rekren was above cent one was above a 2. 5. there is a five to 10% chances ands not a forecast, it is based on strategics. you get an idea and still expecg after shocks out there and those after shocks could range on the magnitude of three and possibly approaching a magnitude of five. from what i am reading the west napa fault, it is not official yet. that's a suspect fault with the epi center close to that point. you can see it run north from vallejo. in terms of the earthquake's depth, the hypo center that's the area that we labeled here is right around 7 miles. that's of an average depth of 6 to 7 miles. a shallow quake would do more de right in the median earthquake zone if that were close to the surface. right about here a

we are live at usgs. in menlo park, david louie, abc7 news. >> thanks for the information about the soil. we were wondering about that because of the marina district. an interesting fact. and you have new information? >> wayne freedman has been tweeting great photos. we will show some of them with the lead he was talking to in the live report. look at the apartment. that's the kitchen everything has come out. the refrigerator door is left open. that's the carport he was talking about where she lives and so many of her neighbors' cars are gone but luckily she loaned hers to her son. everybody outstanding around the neighborhood. if you look at those pictures, you think wow. if you find your refrigerator is down and freezer is down, some safety tips from the federal government. if you lose power, your freezer, if you keep the doors closed, that will help it stay cool. the food is okay for 24 hours if your freezer is half full. if it's fully full, then easier to keep it cold and 48 hours the food is still sa

>>> we'll give you the latest probability from the usgs about how good wave chance of seeing a 5.0 magnitude earthquake or better. and right now is actually looking good. numbers have dropped overnight. your humidity though, that's going to surge for today. we have a stray weekend shower in the forecast, and then, by your labor day, the unofficial kick off of fall looking good, we have some changes though to tell you about in your microclimate forecast in moments. >>> and you might be expecting friday light on the roads, but we have warnings for folks getting into the city or out of town this weekend. >>> and we have a live look at san jose this morning. happy friday to you. august 29th, this is "today in the bay". >>> from nbc bay area, this is "today in the bay." >>> good morning, and thanks for joining us, i'm kris sanchez in for laura garcia-cannon. >> and i'm scott mcgrew. happening right now, a brush fire burning along highway 150 near fruita. a lot of work ahead of them. new video from the fire overnight. flames coming close to the roadway it stopped traffic, but lanes have been reope

on the usgs web site, they give you the longitude coordinates. it was to the west of millton road and that was the main shock that occurred at 3:20 at 6.1. it was in this immediate area and the effects, a lot more widespread and as you have more building, the effects more normal towards napa and vallejo and american canyon as well. we have been watching the after shock and following the main shock which hasn't bummed up to 6.1. at 8:10, 2.6 this morning and as far as the earthquake, this is the incident intensity. >> mark. we have to interrupt you, we have this press conference starting and let's go to napa because the press conference is getting under way and let's listen in. >> i would like to turn it to our city manager, mike parnes. >> randolph and my name is mike pa r-n-e-s-s. just wanted to announce that in response to the emergency that occurred this -- early this morning, we have activated our emergency operation center and effective at 7:59, we declared a local emergency. the county, i believe is taking similar action. we have brought in

into the newsroom with karls from vallejo and san rafael and daly city curing to -- according to e usgsd guerneville and benicia and fairfield and san francisco. people have been feeling the 3.9 earthquake. we do not hear damage reports but because the buildings have been damaged they could be weakened further. be careful. >> there is a stream images showing the earthquake destruction in napa but this is drop video in downtown area of napa valley. we have been showing you buildings on air but not from this perspective. >> 13-year-old honor student suffered the worst injury in the napa valley earthquake. nicholas dillon is involving. the fire place in the home sheared off and fell on him as he slept on the mattress near the fireplace. he is recovering from nine-hour surgery. >> very frightening to know what he was going into but because his friends were calm and comforting he felt like egg -- everything was fine. >> the bricks are filed in the backyard and the rest of the first place will likely be torn down. to be safe. >> families of veterans are in sacramento to expand the california

. >> the usgs early warning system detected a 2.7 after shock. we asked for a list of those measuring greater than. >> we have had 4 larger after shocks. >> the first a 3 parking 3.5 magnitude after shock struck monday. then a 3.6 magnitude quake that same day. the biggest so far a 3.9 came today at 5:30 today rattling nerves and the latest significant after shock came this morning at 6:45. >> after the earthquake occurs there's still some after slip of that stress continuing to be released so the after shocks are little tiny areas that are continuing to feel that same sense of motion. >> are still working to figure out if these quakes affect nearby fault. >> it does release some of the strain but there's still a question that we're investigating to understand the details of. >> the usgs says you can expect after shocks to last about 2 weeks but to the point where most people won't be able to feel them. we're live in. >>> news topper 2 flew over a sink hole that opened up in northwest napa. it appeared on sunday at cranky cord. you can see cautio

the shape map by usgs, maybe 30 miles one way or another. here's 1989. the big one, 1906 earthquake, 7.8 to the 8.0. here's what happened today, jim. i'll take two blocks, my shake blocks, two pieces of dirt, two plates, going leak this, one decide id to go to the nor, that would be the pacific plate because it always does that one decided to stay in the same spot, the north american plate, a fracture of the san andreas fault. when they slipped that rupture is what the people felt. now the reason why this was a significant shake today is because it was shallow. only about eight miles deep, maybe seven miles deep what happen really rattled the people, just rattled to the surface of the earth, not 200 miles deep so that rattling has a chance to attenuate a bit. that's what people felt today all of those big shakes during that one event today. but there have been many, many events. you talked about the aftershocksen this is what it looks like now. there's the original shake. look at other dots, 2.0, 3.oh not up to 4 yet but if you get a 7.0 quake, your afte

the usgs is working on a system to do that. bay area scientist with the help of nasa is working on different systems that could warn you of an earthquake days before it happens. >> hopefully weeks. they have shown it is possible in other areas of the world. for cities like napa and vallejo which face the possibility of billions of damage following the earthquake the extra days could make a world of difference. >>> the sunday earthquake struck without wanting which was centered south of napa valley and the warning system proposed by the governor activates only after an earthquake starts giving people a second notice near the epicenter but nasa scientists says he could do better. he is working on an early detection system that can give people days of warning ahead of an earthquake a game changer for anyone living in an earthquake zone like the bay area. >> we have figure where they will occur two weaks -- weeks ahead of time that there is 90 percent probability an earthquake will happen in a couple of miles of where we say it wil

but over 900 responses on the usgs site appeared appear.his morning this easter rattled and afraid from more happened on. >> mark: in vallejo. a historic church was at risk of collapsing. >> reporter: no more damage this building has been a red tag. and at this point bell believe so. >> mark >>: and did you fill the aftershocks. >>: and yes it was small and it was pretty tiny >>: this city is a ploy to inspect in there and tell us what to do. >>: i inspected the building on monday and found the crack on monday. >>: the wall is built with three or four bricks effect. and when i saw the cracks in them corazon of debts with came loose. >> reporter: they will have service will now show be here or somewhere else but will go on. >> darya: if your nerves are in use of this morning. >>: i live two blocks away from napa high. >>: i was lying in bed watching youth and as my husband was about to leave for work i realized they're f there was an aftershock. a lot of things in the riots and cleaning solution that broke. and the concrete on the back patio

the usgs estimates more than 120,000 people experiencing the earthquake. there have been minor after shocks. 15,000 people are reported to be without power. a few minutes ago we are told president obama has been briefed on the earthquake. let's bring in a reporter on scene, will cane, a reporter for "the san francisco chronicle." he is at the medical center in napa where victims are being taken by helicopter. thanks for joining us. do we know how many injured have been brought to the hospital so far? >> the latest update we just got is that 87 people have been injured and are being treated at this hospital. three of those people are in critical condition. two of them are in intensive care and the other person is a child who was injured when a chimney collapsed in his or her home. >> earlier i saw you were posting on twitter from the mobile home park where there were burned down homes there. were there injuries there? >> luckily no injuries in that mobile home park. from what i could tell all the neighbors before the fire department arrived came together an

the usgs says 6.0 magnitude. the city of napa says 6.1 but the usgs is leaning toward that 6.0 number but it doesn't matter because the damage is significant. 3:30 in the morning, look at bricks that fell off. can you imagine if this happened at 3:30 in the afternoon? just amazing. colors are bad after an earthquake. see the yellow tape? it means can you not go inside the building at all. a lot of these buildings have red tags. that means are you not allowed to go inside the building because the damage is so significant inside. down here past the satellite trucks, yellow tape, red tape goes on for blocks and blocks here in downtown napa. a lot of the businesses are still shut down. they're concerned because this is one of their biggest weekends of the year coming up, labor day. they're concerned that a lot of people won't come. a lot of this town -- in fact most of the town is still open. you can hear sirens still going off. they're putting fencing up and down. this quake was a magnitude 6.0. 3:00 in the morning.

we'll keep tracking that for you and let you know what the usgs tells us every time we get an update. 62 in san francisco. nice and comfortable. good morning, san carlos. starting the day at 60 degrees in oakland. taking a live look, beautiful start over emeryville. pretty day coming your way. getting gorgeous sunrise. high atop mt. hamilton, pretty start. here is it, bay area from space. you can see here this tells the weather story of the day. clouds cut off this morning around the inner bay. starting out mostly clear. and as a result of that shallow marine layer, temperatures are going to be hot in inland valley spots throughout the day today. you'll notice up here, up from sonoma county through marin, we have thick pockets of fog. travel cautiously along 1, if that's the route you take. otherwise, looking good for that onshore flow to continue at least on the coastal side of san francisco for the first part of the day. here's where we are. here's where we're headed 60 to start. 80s to finish. 82 for the peninsula. 70 degrees in san francisco. the giants are home for a long stretch

this earlier today the usgs tweeted out and said it is 6.05. we don't know whether to round it up or down. we will work on that temperature finally the past few minutes they rounded it up to 6.1. that's why the number has changed on the screen. look at all of the aftershocks already. that was the first one, the first earthquake 6.1. and since then the aftershocks already on the map and more to come. buildings that are damaged, the problem is there is a brick waiting to fall off. a 3.5 could make some of the bricks fall down. you need to stay away from damaged areas. >> can you put this in to context of the previous big quakes we know well out of that area, including the one 25 years ago. the famous one that struck during the world series and going back to 1906. how big is this in comparison? >> this is the shake map. it tells a big story. if you see red it is violent shaking. there's the red. there's the size of the red er this quake. there is the moment, much bigger. these are just about to scale. look at the red area here. this is the 1908, s

to mary thompson, the usgs estimating the loss could be in the billions. tell us more about that and the insurance costs. >> well, sue, the united states geological survey says when it does come to economic losses, it's tagging the napa earthquake with a red alert. according to the usga's website it suggests to $10 billion, but equicat puts it half a billion to a billion. we know for sure it's a fluid situation, and the numbers will be changing, as the interruptions to businesses are understood. still, this could make it the third or fourth most expensive in terms of insured losses. the last quake to hit that region was back in 199. while the usgs says the there are plenty of vulnerable structures there. adding disruption to the tourism industries and the wineries, and those losses are likely to mount. while california is home to two thirds of the -- and 2,000 known fault lines, only 12% of the state's homeowners actually carry earthquake insurance. the percentage in napa even lower, according to the insurance information institute. cost and high deductibl

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talking to experts at usgs. >>reporter: detected this earthquake around 3:20. they believed the a magnitude of 6.0. they are calling it the south napa earthquake. strongest since 1989. there's been numerous after shocks. the strongest of a magnitude 2.5 which hit around 5:# morning. these earth wakes may be happening along the west napa fault. -- >> the earthquake was strike slip earthquake that produces where the earth's crust moves side to side which is typical for the bay area. the motion along a fault that would be typical for the bay area. in that sense looks like a typical kind of earth wake. the magnitude larger than what we've seen. >>reporter: geologist. five prs chance or less that there can be a large after -- >> we have new video coming in. out of vallejo of possible looting. this looks like a post office in vallejo. police on scene and that the windows here have been broken. we can't tell in anybody else -- if anything has been taken. you can see how the win zrous been broken. looks like folks are just assessing and taking a look at the damage. >>

brad agard, geophysicist here at usgs. obviously, this will be studied and we'll learn a lot more in the days and weeks to come. david louie, abc 7 news. >> great information. since you have brad, the expert there, two quick questions you could address. one, does this quake here relieve any pressure among our major fault lines? and, two, what can we expect in the terms of scope and magnitude of aftershocks in the week ahead? >> reporter: brad, we have follow-up questions from our anchor in the studio. does this, in any way, relieve pressure on the falls in the napa area? >> this relieves stress right on this region where the 1906 earthquake occurred. aftershocks are indications that there are additional specimens in that region. slightly increase the stress in the surrounding region, decrease the stress in that region. significant effect overall in terms of what's to come we have a 5% to 10% probability of a larger earthquake some time in the future. it sort of effects the overall large earthquakes and very small amount, s

counties. >>> an hour ago a 3.2 quake hit southwest of napa. 135 people reported feeling it to the usgste and we're hearing from several viewers woken up by the tremble. so far no reports of damage or injuries but 3.2 is a shaker right? >>> that's pretty good size one and not too far from -- from san francisco. >> yeah. i know -- a lot of people feeling those you know we're overdue. for something. and michelle is yet to have one. >> through three years? >> just one of these times. but right now ensettled weather out the door. the showers and the possibility of isolated thunderstorms throughout the day today. that monsoonal moisture working its way back into the bay area. and yeah actually bringing some rain drops not just muggy conditions outside. things are going to stay unsettled throughout the morning hours. even in the afternoon. you see the main focus the north and the east bay. a lot of the showers now sliding a little further to the south. but as we head toward the afternoon. i think you can see a whole lot of cloud cover and numbers now in the 50s and the 60s. by this afternoon,

. >> ama and dan, we're tracking at least 86 aftershocks, the latest numbers from the usgs at this hour around napa. 5:47 a.m. was 3.6. most of the aftershocks have gone unnoticed. very active ground underneath napa at this hour. we'll show you it's a quiet evening across the bay area on this sunday evening. temperatures currently at 65 in oakland. 62 in san francisco. 66 in hayward. right now san jose is currently at 65 degrees. a live look at our camera showing san francisco and the clouds are pushing in from the coast and into the bay. we'll feature fog returning overnight tonight. a little cooler for your monday. hot by the midweek. if you're headed to school tomorrow or out the door early on, mainly sunny. areas of fog, upper 50s and by the bay, probably cloudy skies, 57 to about 62 degrees. grab that light jacket. take it off in the afternoon because highs on monday, 66 in half moon bay, 68 in san francisco, fremont, 75 degrees. the forecast tomorrow, mid-80s inland, but there we go, midweek this week, 90s on the board. and even into the coastal locations. we'll top out in the low