as you mentioned, sometimes usgs the magnitude. however, in this case, it seems to have upgraded over when it first hit. we were getting reports that it was a 4.7. then it was a 5 but now it's staying pretty steady now with them reporting it has a 5.1. it was pretty strong to me of the berkeley seismology lab were saying this isn't technically a large earthquake that starts about 6 point. you know, 6 magnitude, but still many of us here in the bay area felt that. charles, thank you. we'll get back to you in just a bit. we do want to get to usgs. we've and murray ball take on the phone with the u.s. geological survey and murray. thank you for joining us. what can you tell us about this quake? >> yeah, thanks for having me. so this was a of 5.1 earthquake on hayward calaveras fault town. i'm just east of san jose. >> do we know when the last time was that felt an earthquake of this magnitude on that fault? >> oh, that's a great question. we actually haven't pulled up that information at that. we're all working on it. >> okay. i do no

. >> usgs has added more seismic centers across the bay area. around 550 seismic stations now provide continuous real-time data. that information goes straight to the shake alert eare alert earthquake early warning system. >> when the waves travel they are recorded at the station. information is sent to our computers immediately. we can quickly determine where and whea earthquake occurred. this is the the seismic instrument. inside these box are instruments that d the earthquake as it comes to te station. this box is connected o the power system. which is powed by the solar panel. we added five times as many seismic stations in the san francisco bay area. we are better to monitor for earthquakes and fige out when they are happening much happening much more quickly. >> we now have more seismic sensors in the bay area. it is important to be prepared. he sas it is only a matter of time befe the next one hits. > >> when usgs seismic sensors detect an earthquake of magnitue 4.5 or higher is shake alert early warning message will be sent to local tran

there's a map that the usgs puts together that can show how strong the earthquake was felt across the bay area as a whole and this one is showing you where the epicenter is. in terms of how strongly the earthquake was felt , i don't know if we can pull up max one on that but it's on max one and if we can continue the good news. it basically shades to yellow which is weak to moderate, that's about a moderate earthquake which really corresponds with what you would expect from a 5.1. i think we are all familiar enough with the rick or scale and going over numbers , seven is a highly concerning number, six as you can expect some damage, a 5.1 is something that will be felt , but it's not something that's necessarily going to cause widespread damage. we don't have reports of any damage from this yet but i think with a 5.1 although it wasn't based right underneath a heavy population center it is certainly close enough that there likely could be reports of sun damage. this would be the kind of earthquake where we would probably get images from the liquor store, somewhere near allen rock wher

the usgs says the quake hit around 11:42am. right near san jose. and this new video shows a man rushing inside of his san jose home grabbing a child right? when that shaking started, you can see him there. and that's when the quake hit. he knew he had to jump into action further south and santa cruz. we're now seeing images of the damage there and our business posted these pictures of broken glass frames. the people it lends art tells us the shaking was so intense. the frames fell right off the shelf. thank you so much for joining us here during kron. 4 news at 3 o'clock today. i'm justine waltman. this morning's earthquake, the region's largest quake in 8 years since that 6 point, oh, hit nap and 2014, the epicenter from today in the hills east of san jose. in the 7 trees neighborhood, the movement right along the calaveras fault. kron four's justin campbell is standing by in that area. will update us on any injuries or damage. but first, let's check in now with our meteorologist kyla grogan to get a better idea of where the shaking started and pi

ross stein formerly with usgs and now the founder of the templar app. thank you so much for coming on today to share your expertise with us and help us stay safe. it was great to talk with you kristen you too, by the way on our website abc7news.com. we have lots of resources as well to help you prepare for a natural disaster that includes a video on what to pack in your earthquake kit to continue that conversation. you can visit abc7news.com slash prepare thank you so much for js today for getting answers. we'll be here every weekday at 3:00 answering your questions with experts from all around the bay area world news tonight with david muir is coming up next and i'll see you back here at 4. >>> tonight, russia unleashing kamikaze drones on the capitol of kyiv. a pregnant woman among the victims. >>> in the u.s. tonight, news on that suspected serial killer, what they've now revealed. >>> and the freeze warnings in effect for millions. >>> first, those images coming in from ukraine tonight. at least 43 drones packed with explosives raining down on ukrai

we'll see if that is revised when the usgs gets new data. the new quake is the red dot, there are two orange ones, so you can see how these are stacked on each other. the 5.1 quake did not do significant damage, so it is unlikely the 3.6 are pleasantl cool, pretty normal. more clouds will be floating down towards us, the storm track is to more rain for the pacific northwest, looking for them. once you caoswill scoot out by midday. lots of sunshine for the rest of the day, and i think we will see abundant sunshine . not much fog for the next couple of mornings until we get towards friday morning when the winds will shift to allow that marine layer to reorganize itself. more cloud cover for the end of the workweek, but these clouds are not going to drop significant chance of showers on us either. we had that chance for the forecast saturday night into sunday, that has significantly diminished. there is a chance north of the golden gate, but it looks like the better chance will hold off until next tuesday, wednesday, even adding that and we are

yeah we have right now either you have long-term 30-year probabilities from like say produced by the usgs that tell you, you know, we've in the next 30 years we expect a magnitude six or greater with almost a 90% probability and in the short term, you've got quake alert or shake alert that once the once the shaking starts you can get an alert out to people before it reaches them. this is something in between. this is a short-term concept that would allow humans to actually take action that we haven't been able to take before now with what we have in our study right now. there's there's not yet enough specificity in in the data to be able to issue forecasts now, but it sure points in the direction that it could actually be possible. the us geological survey states plainly on his website that there is no way to predict a major earthquake in no way in the near future and some of their scientists are on record being kind of skeptical about this possible approach. how do you respond to that or look at that? i think there's but there's a saying that the data really tells the story. people can m

usgs reporting this one close to a magnitude 3.6. and that's where we find ktvu software reporter jesse gary joining us live and jesse, there have been a couple of those smaller aftershocks felt the latest o alex. i can say i have not felt the latest one. as section of san jose, which is closest to the epicenter, actually felt the aftershocks. what's the old bromide icu here that what's the old bromide for californians? a wake me when it's above a five that seems to be what people feel here. no one really noticed the smaller ones . however, the bigger one of 5.1 that was noticeable. yes, i was inside my home, a victorian that dates back to the late 18 eighties that survived 19 oh, six and loma prieta. i noticed the house doing what houses doing an earthquake, and by the time i could really gather myself and think, you know, what should i do? grab my phone. get out of the house. the laptop. by the time i'd all kind of clicked, it was over, but it felt like an eternity. let's go ahead. take a look at our video, and this is chopper to a

this map from the usgs showed how widely felt the shaking was. people noticed it as far north as santa rosa and sacramento, and as far south as carmel valley. >> earthquake. >> some of these videos, artwork is swaying in his classroom. this is about 60 miles northwest of the epicenter. >> earthquake was a real-life test for the early warning system. roughly 100,000 people through the bay area got a heads up from the my shake app. our reporter takes a closer look at why. >> reporter: eventually, the early warning system will automatically alert you in the event of an earthquake. right now, you have to opt in, download the app, and install it on your phone. it is limiting its reach. the california office of emergency services says they alerted 95,000 people that a moderate to large earthquake was on the way. this potentially gave them precious seconds of warning before the shaking started. >> the point of early warning not to alert you of every little rumble that you could possibly feel, only the ones that could knock stuff off the shelves or put y

lena: ross stein of usgs says that it was in the same area as the quake from 1984, the largest on the fault since the 2007 shake centered in allen rock. experts believe that aftershocks as strong as 4.0 are still possible on the calaveras far -- fault for the next 24 hours. live in walnut creek, lena howland. reggie: the last time we had a earthquake the strong, looking back, there have been four magnitude 5.0 or eight or earth eggs in the past 30 years. again yesterday was 5.1. 6.0 was centered in napa in 2014. 5.6 in allen rock. 5.0 in young bill. and of course going farther back , the 1984 morgan hill 6.2 in 1989. kumasi: experts believe northern california is one of the most seismically active areas of the state and the probability of a magnitude 6.7 striking in the next early years is 63% so we want to do our best to help you prepare for that, head to abc news.com and learn simple steps to get ready, making a kit, getting a plan, being informed. reggie: hospitals across the country seeing an increase in rsv across the country. looks like the camera is having an earthquake. sorry.

okay don blakeman, a geophysicist at the usgs, joining us from golden, colorado . thank you so much for joining us here is we're bringing this breaking news coverage to our viewers. yep that is an earthquake that you just felt it was a 5.1 down in the south bay and we're beginning updates on mass transit. if you were on mass transit or planned on taking mass transit, here's the latest update from bart. now they see trains will be running at reduced speeds, which we mentioned earlier. but they do say expect residual delays of 10 to 15 minutes throughout the bark system, and then the san francisco bay ferry, they sent an alert says you may experience a 10 minutes late system wide as well following this earthquake, so we don't know how it directly impacted them. but we do know the impact was. the result of these delays was the result of this 5.1 earthquake that struck south southeast san jose just short time ago. let's see if we can bring another voice into our conversation here turning to the south bay. jonathan miller, san jose state department chair of geology. jon

. > >> in the three decades, usgs has added a lot more seismic sensors around the bay area. we will show you how they actually work. >> california insurance commissioner is taking steps for steps for people living in highe high fire danger areas. all cars who often cover wildfire zones will be required to offer discounts to homeowners and bus. and businesses. that could incle things like installing fire resistant roofs and clearing dee clearing defensible safes. it i. is october. we are in the middle middle of fire danger and fire . fire season. >> warm temperatures inland. everybody is in for a warm up ae head through the next few days. >> we will get a brief window fr offshore wind. the good news, the offshore winds will be sufficient to boost our tempera. our temperatures. right now, just a little haze on the horiz. the horizon. temperatures are ie 60s around the bay. above normal normal temperatures in store fo. the fog will be present early tuesday morning. it will not bes widespread or persistent as the past couple of weeks. improving. improving disabilities. we head t

. >> take a look from this map of the usgs. it shows how widely felt the shaking was. people felt it as far no as santa rosa and as far south as carmel valley. >> earthquake. >> look at that. the shaking had artwork swaying in the classroom it is ingleside area. fewer than 100,000 people across the bay area actually got a heads up from there myshake app. kpix 5's devin fehely takes a look at why. >> eventually, the early warning system will automatically alert you right now, you still download the app, and install it on your phone. that's really limiting its reach. california's office of emergency services said they alerted more than 95,000 people that a moderate to large earthquake was on the way. potentially giving them precious seconds of warning before the shaking started. >> the point of earthquake early warning is not to alert you of every little rumble that you may possibly feel, only the ones that may knock step off the shelves or put you in harm's way. >> reporter: the stated federal government have built hundreds of earthquake sensors across california. it ca

build up the expansion of the cities, and you need to take into account scientific studies that the usgs uses. science is an important thing to consider when you want to plan resilient societies for the future. get informed and get prepared. that is what people will have to do. kristen: thank you so much for your time today. >> you are very welcome. kristen: we just want to let you know on the abc7news website, we have a section if you are looking for resources on how to prepare your earthquake kit. coming up, hundreds of new homes, and a new look for the san francisco skyline could be coming soon if developers get their wish. naomi: every year the wildfires, the smoke seems to get worse. jessica: there is actual particles on every single surface. dr. cooke: california has the worst air pollution in the country. the top 2 causes are vehicles and wildfires. prop 30 helps clean our air. it will reduce the tailpipe emissions that poison our air kevin: and helps prevent the wildfires that create toxic smoke that's why calfire firefighters, the american lung association, and the coalition for

as the expert from the usgs says this is a good spot for that earthquake to happen because it releases some of the seismic tension and hopefully helps us avoid a larger quake happening along the partularfault. when we evaluate these bay area. statistically it is the most likely to experience a major earthquake. 6.7 magnitude or larger over the next 20 years according to a study done back in 2014, so almost ten years ago already. but the calaveras fault is the most likely to produce a major earthquake in the bay area. it is actually only 22% of the chance to produce that magnitude of earthquake. 6.7 would do a lot of damage if it happens in the more densely populated parts of the bay area. it's been a while since we've seen an earthquake. the last one was nap baa back in 2016. 5.5 along the section of the calaveras fault in 2007. otherwise you have to go back to the loma prieta quake in 1989. this depose back to the 1850s. these size earthquakes used to be frequent. hopefully we don't get back into that pattern any time soon. this happens on geologic time. considering from our human bra

i talked with a usgs expert abouwhat today's quake tells us about the calaveras fault.we've been living through a decade of seismic sleep, in fact the most seismically active fall in the bay area is the hayward and southern calaveras. so these are false that produce little earthquakes all the time and if we look at our history, which isn't long goes back to about 1836. we see some very large earthquakes on this fall as well. in fact the magnitude 6.2 morgan hill earthquake occurred an exactly the same spot that this one struck. so this is an act of fall. this is a fault that could rupture in a very large earthquake and this is one we need to worry about. on our website abc7news.com. we have lots of resources to help you prepare for an earthquake and that includes a video on what to pack in your earthquake kit. do you have an earthquake kit? maybe a good place to start visit abc 7 news.com slash prepare norcal if you've got an appointment at an alta bates medical center campus in oakland or berkeley, you may see protesters. it's day two of a nurse's strike nurses want su

joining us live is robert with usgs. thank you for joining us. first of all, how did the system perform today? did it do okay? >> it performed exactly as designed. much like the earthquake in september in santa rosa, this is just another case where it is doing what it should be doing. >> can you explain how it works? who gets an award alert and how much notice? >> the shakealert system works -- basically earthquakes are detected by spasmodic -- size monitors. we provide information about the estimated size, the location , and how much shaking could happen around the quake. we provide that to providers . they take that information , and they determined where to deliver it. in the case of my shake, they would be delivering alerts to people who could fill an intensity 3 or higher. what an and tuesday 3 is, it's like a kind of heavy truck passing by your house. if you have ever felt that, that is where they will deliver alerts to people. we know that a lot of people got alerts from my shake and other alert providers today. >> how much notice did folk

joining us live is robert with usgs. thank you for joining us. first of all, how did the system perform today? did it do okay?

but a retired usgs scientist says because of the quake. >> a tremendous amount of work has been done to strengthen the infrastructure with bridges, freeway overpasses and improving the water system. these images change the bay area in a matter of seconds. >> this was 33 years ago on was a shock to the bay. there. >> the loma prieta earthquake catching the public and even the science community off guard. there was a real air of complacency. when david schwartz joined the u.s. geological survey in 1985, he says the focus was on the san andreas fault in southern california. the bay area hadn't seen a major quake since a 7.9 san francisco earthquake in 19. 0, 6, in the bay area basically was in africa. so that changed after loma prieta. the 6.9 magnitude quake destroying bridges and leveling homes and buildings. 63 people died and more than 3,000 injured. >> the shaking lasted an agonizing 15 seconds. shake terrible. i grew up new california. >> and grew up here in southern california. up here and been through a lot of earthquakes. but this is really different than other ones. and it was

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a few minutes later, usgs did record a 2.9 magnitude aftershock and just after three this afternoon 3.6 aftershock and that same area there are no reports of damage or injuries. some bart trains were delayed for safety checks but were released within minutes. we do have team coverage for you tonight ktvu s cristina rendon checking in with residents who felt that quick, but we begin with south bay reporter jesse gary live in san jose right near the epicenter, and jesse got to ask you. did you feel the main one in any of the aftershocks? mike definitely felt the main one that that was hard to miss the aftershocks. no not here in the seven trees neighborhood of san jose, and i've talked to some people here no idea that there was an aftershock the older bromide for californians wake me when it's above a five and then i'll notice that seems to be in place. santa clara county officials sent out an email just a short time ago, saying that there are no reports of gas leaks. damage or injuries related to this 5.1 temblor. you know, the event felt more like swaying. i lived downtown in a victoria

berkeley runs a network of seismic stations across northern california, just like the usgs does theyome to those stations with an algorithm that we created at berkeley, as well. it generated the alert on tuesday. that algorithm creates an alert that gets pushed out to various delivery markets. the my shakeout is something that everybody can dollars of the get the warning on their phone. also, if you have an android phone, it is built into android phones but every android phone got the alert on tuesday, as well. >> really? andro phones, you are able to use them to measure rthquake activity in various places around the world. to make that is right but everyone's phone has an accelerometer and that allows them to see if they are in portrait or landscape mode to abuse that accelerometer to to tell earthquakes as well. the app does that. the records earthquakes. we use that for research but also, with an android, they are using it with the entire android ecosystem. all phones around the globe actually detecting earthquakes today. the android early warning system is delivering alerts in ma

the usgs classifies this as a moderate sized earthquake. the director of the berkeley seismology lab at uc berkeley, says aftershocks associated with this quake should not last more than a few days. now sort of renamed the earthquake and allan rock earthquake in multiple allan rock earthquakes in the past, so this is a very sort of typical location where we see earthquakes like this from time to time. several people in downtown san jose say they felt a jolt in high rises at home or at work, but there are no reports of any damage or injuries. thanks to an earthquake alert system. nearly 100,000 people were warned about that quake seconds before it actually hit. ktvu as many quintana has more on the system. i had to just recognize that it was happening and then yeah, okay, it's happening, john harmon says. for most californians, they're somewhat used to earthquakes like today's roll with it. kind of like aneae to in san jose didn't think the 5.1 magnitude quake was that bad. i thought there was just somebody like moving very aggressively upst

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. >> reporter: usgs has added more sensors across the bay area. around 550 seismic stations now provide continuous , real-time data . that information goes straight to the shake alert, and earthquak early warning system. >> the waves travel and are recorded on the station. the information is immediately sent to our computers. we can quickl determine when and where an earthquake occurs. this is the seismic instrument and insight are instruments that record the earthquake as it comes to this station and this box is connected to the power system which is powered by the solar panel and above that is a gps antenna and radio since 1989. we have added about five times as many in the san francisco area. we are able to better monitor and figure out when they are happening much more quickly. >> reporter: cosco is glad to hear we have more seismic centers and he thinks it is so important to be prepared. he says it is only a matter of tim before the next one hits. >>> on the west coast, we can download the app which gives u up to 20 seconds of warning whe an

a 6.4 earthquake rattled the northern philippines good usgs says the earthquake hit seven miles froman island city. there was no major damage. in july, a magnitude seven earthquake in the same area killed at least five people and injured dozens. ama: if you do not have it you can download the app my shake, it is the states earthquake early warning system that delivers alerts to cell phones through an app developed at uc berkeley. news reporter stephanie sierra is digging into how effective it was today when the earthquake step -- struck the bay area. stephanie: as far as tests go the my shake app was not only effective but efficient. most people have it reporting on social media they got the notice before the quake hit. that is what the technology is designed to do, but experts are already looking at ways to detect the threat even faster. before an earthquake hits, every second counts. that is why the state rolled out the app called my shake in 20 to warn people with an alert on their cell phones before the ground starts shaking. professor richard allen is the director of uc berkeley

. >> dana, well, i'm afraid cause billions of dollars in damage to region, but a retired usgs scientists says because of the quake, a tremendous amount of work has been done to strengthen infrastructure when you bridge's freeway overpasses, improving the water system. these images here change the bay area in a matter of seconds. >> this was 33 years ago on was a shock to the bay. there. >> the loma prieta earthquake catching the public and even the science community off guard. there was a real air of complacency. when david schwartz joined the u.s. geological survey in 1985, he says the focus was on the san andreas fault in southern california. the bay area hadn't seen a major quake since a 7.9 san francisco earthquake in 19. 0, 6, in the bay area basically was in africa. so that changed after loma prieta. the 6.9 magnitude quake destroying bridges and leveling homes and buildings. 63 people died and more than 3,000 injured. >> the shaking lasted an agonizing 15 seconds. shake terrible. i grew up new california. >> and grew up here in southern california. up here and been through a lot o

nonviolence yet every timehe usg court 30 or 35 pounds of heavy change just to humiliate him to show the world what they can do to someone. they can treat them like a caged animal and for what? are asking just for freedom for doing what they've been doing for 26 years writing a newspaper. it's extraordinary. for many years he said they are going to come after me and i'll put me in jail. you think really? is it really that bad? hong kong seems that it's okay but i was wrong. >> it captures something near and dear to the hearts of many. given t that talk about your son in 2019 did look at their anti-chinese rhetoric. china was never going to let this happen and some say they bought a ticket to it as well with calls for democracy in the newspaper something that they could, and shut down and it did shut down sadly and after the national security law took effect when conservatives owned newsrooms 200 police went to the newsroom and they put out a statement defining this the foreign ministry told us. that marks they beginning of wht many of us saw as a new chapter of freedom in hong kong.

the usgs classifies this one as a moderate sized earthquake. happen on the calvary's fault, which runs from about walnut creek down to hollister, the director of the berkeley seismology lab at uc berkeley says aftershocks associated with this quake should not last more than a few days. most aftershocks are smaller. and for most earthquakes, we only see these smaller after color aftershocks just like we've been seeing today, but we do have to be ready for another larger magnitude earthquake. that is always the case. about one in 20 earthquakes in california are foreshocks, as in they have a large earthquake that follows many people in downtown san jose say they felt a jolt in high rises in office buildings or at home, and for some, it was their first time experiencing an earthquake. you don't know how to react to it. the only thing i could do is run because everybody started evacuating the building. and the security was like, hey, you gotta move. i think i really need to work on my earthquake response freeze is probably not the best solution. th

. >> his lab and usgs are trying to determine who to target with these alerts. everyone who will feel the shake or those will fill it more intense. if people feel it they want those alerts. one person died and dozens were injured. in october 2007 a 5.6 magnitude quake shook the san jose area. it struck on the callous vera fault around 8:00. there was no major damage reported. the largest and most distract quake was the earthquake. the 6.9 magnitude earthquake killed more than 62 people and left thousands hurt. >>> if you ever feel shaking and wants to know exactly how strong it was, make sure to check our quake tracker. >> some of the headlines tonight. a developing story in castro valley. a 6-year-old in the hospital after a hit-and-run. the search is on for the driver. it happened around 5:00 p.m. underneath avenue not far from the jack-in-the-box there. chp says the 6-year-old was crossing the street with a sibling when it happened. the victim suffered moderate to major injuries but is expected to survive. as for the driver who took off, investigators need yo