building and at the roof level it's just collapsed. >> the county is still assessing damage? >> oh, yeah. we will be assessing damage for some time. there's no doubt about it. and the city and the county will have i think a good plan going forward with what they are doing to make sure the public is protect the.

napa canyon area about 3:20 this morning and it really was a good jolt. it felt, to me. we were both awakened by it -- it felt like it was 20 to 30 seconds long. it was kind of a side-to-side shake for me. that's what i felt. >> yeah. for you it felt maybe a little bit longer. you were closer to the epicenter. for me down on the peninsula, it felt more of like a rolling motion. for me, not nearly as strong as the loma prieta quake. moving around, getting the kids up. a shake map, i was able to see what the aftershock situation has been since that 6.0 quake hit at 3:20 our time. there's been a 2.5. there was a 3.6 not too long ago. all of this, of course, having

an impact on the roadways in that immediate area. >> and leyla gulen is here with a look at that. >> we look at the golden gate bridge. it's a major concern to people in the bay area. the golden gate bridge, bay bridge have withstood this ea h earthquake. i'll see you the bay bridge toll plaza in a moment. now we did have some areas of reopening of closures. holyfield out in vallejo. i-80 to 37 was shut down. that has actually reopened. we have some video. folks in vallejo. the road has buckled. that thick asphalt that's come up in that try giangular shape there. highways 121, 29, old sonoma

highway, that is where we have one-way traffic control in effect as well. major damage that caused some damage to vehicles that were traveling at the time this earthquake struck. folks were not injured as a result. we are live in vallejo. which street are we look at? >> is it meadowbrook drive? >> meadowbrook drive. we have this type of damage in other areas. chp that's out there right now. of course, you can see major damage in front of the house. they'll have to figure out a way to back their cars out and saying good morning to us. it's not a good morning for a lot of folks waking up to, of course, major damage from across the bay area in the north bay. vallejo, that was the transition

road. amy holly field was here a moment ago. we saw screens that were cracked through the transition roads from i-80 to 37. they're not cause for concern, according to the chp. chp is telling us that the roads are safe and they have reopened the transition from i-80 to 37. also the sonoma off-ramp. big concern is folks heading to the sonoma raceway, of course. we have the sonoma raceway go pro grand prix. indy lights warm-up started this morning. we're not hearing any reason why they should not have things go on as planned. and it looks like all roads that lead there should be open as well. our sports anchor tells us no damage on the track either at sonoma raceway. everything is business as usual

there. we take you back to vallejo. we had early closures. those have now cleared. they've reopened. we take you back up to highway 121, 29. this area in purple, that's indicating where we do have a closure. from sky 7 hd, live pictures overhead. we are look at a library right now. extensive damage there. my goodness. you can see the bricks and concrete that's fallen on to the roadway. we'll have more information for you. >> all right. leyla, thank you so much for that information. you know, if you are on twitter at all, we encourage you to please send us your images on twitter. you can follow us as well on twitter @abc 7 news bay area. send us pictures of damage in your area. we do rely on you for a lot of this information. that's you report @kgotv.com.

>> we take a look at the destruction. cornell's interview with officials, they have no known fatalities at this time. there are some injuries. ama daetz has been monitoring the information. what do you have? >> napa, good men library was home to napa historical society and landmark. according to the website, this is the longest continuously operating library in the state of california. you can see where bricks have come down and crashed to the ground. unfortunately as we've been seeing, because it happened so early in the morning.

may 2, 1881. very historic building there. this is some new video, looks like surveillance video from inside their home. this is youtube video. you can see things moving -- listen. you can hear people. see a woman coming down. i heard some shattering glass. they're saying earthquake. yeah. video from inside someone's home as that earthquake was happening. people waking up, figuring out what is going on. and i believe we have some -- gosh, you hear it crashing there. this is from american canyon. this is store damage, as you can imagine. when it shakes, all those items come off those shelves. this is a store in american canyon.

lots of things come down. a lot of twitter pictures that people have been sending in of just book shelves, items from stores, like you see here, that have just fallen on to the floor. a lot of cleanup happening. a lot of wine bottles have crashed and spilled as well. we are look at some of the latest video that has come in. this is valle jcjo, first unite methodist church. a lot of these older buildings that have been around for so long. they're historic and they have a lot of that brick. and some of the brick has just come crumbling down. you quickly saw a chimney. a picture somebody tweeted me earlier, a chimney that came down. this is a car that got pretty much the worst of it as the bricks came down there. this is in napa, where we are seeing most of the damage, this area that was hardest hit. this is a picture from inside somebody's home. some of the damage there. things knocked over.

things have ko come down to the floor. anything you want to send us, video, pictures, be sure to do that as well. we are live, streaming on our website, on our app, abc 7 news app. check us out on our ipad if you need to leave your tv. you can still get the latest information on this 6.0 south napa quake that happened 3:20 this morning. a lot of pictures of the damage coming in, i've been monitoring twitter, checking out all the pictures coming in. this is another picture. you can see a book shelf that came down. books on the floor there. people are doing a good job of sending us pictures. we've seen probably some of the worst video from a mobile home park that some of the mobile homes have been destroyed, on fire. take a look. four homes destroyed by fire the a mobile home park in north napa. there was no water for the first 20 minutes because there were broken water mains. apparently this started with a broken gas main. you can see firefighters right now are just letting it burn,

unfortunately. they're trying to conserve water in case anything else should happen. we are hearing that a triage center was set up at queen of the valley hospital in napa. we aren't hearing of any major injuries at this point. let's get it over to cheryl and kristen. >> let's show that picture you're talking about, ama, the triage center they set up at queen of the valley. we'll have that in a little bit. right now you're looking at video of some of the destruction in napa. here is the triage center for you. 70 patients have arrived here at this triage center set up right outside the e.r. most of the patients have lacerations, cuts, things consistent with bricks or cuts from glass or things like that. again, we're hearing no fatalities that are known at this point. let's hope it stay that is way. there have been issues with cuts, one heart attack, one hip fracture. queen of the valley hospital where they're very busy right now in napa to treat some of the

injured. >> pictures sent to us of damage inside the hospital itself. i'm assuming that that may be a reason to have the triage center outside. or maybe it makes it more convenient to get everybody affected by the quake in that. i want to let you know, we saw earlier fires of a couple of mobile home parks. napa division chief is advising people, please do not turn off your gas unless you hear a hissing sound or smell a gas leak. they are checking out a number of gas leaks in the area. once you turn that gas off it there take a long time to get pg&e to you to turn it back on. if you're not smelling gas or do not see a break, the fire chief says do not turn off your gas. >> cornell, you are on the ground there, in the heart of it. what are you seeing now? >> reporter: i hate to keep showing these but, you know, it's stunning to me how many bricks there are all over the downtown area.

again, courthouse square, the old courthouse, southeast corner is completely gone. there's quite a bit of rubble at the southwest corner of the old courthouse. gold rush era buildings. here at the corner of brown and 2nd street. this was diana dormet's office. this was your office? >> legal aid of napa valley has been here in seven years, we've had our office, on the third floor, now on the second floor. yeah, it was pretty shocking to see that this morning. you know, i'm glad there's nobody in there. i feel bad for the business owners on the bottom. they're good people. see them every day. we come in and out of this building all the time. we're right across from the courthouse. that saddened me quite a bit this morning to see that going on. i'm just hoping people are okay. up where i live, there are mobile home fires. we could see the smoke from our house. i'm hoping and praying everybody

is good. this is a small community. everybody comes together very quickly. i'm sure we'll all be helping each other out in the rebuilding process here. tenant up in the corner just moved here the last six months. everybody knows everybody in the building. >> yellow tape all around. there's no getting near these buildings. are you concerned about getting in, checking on your office? >> i am concerned. i have my work laptop at home. i had one of my staff members here about 4:00 in the morning telling me about the damage. we've all been in touch with each other, making sure everybody is okay. i'm concerned about access and pulling things out that we need because we are all lawyers and have clients that we would expect to see monday morning. >> reporter: stunned about the damage in the downtown area. tell me what your reaction is now that the sun has come up and we're getting a better look. >> i am really shocked, too, at the amount of damage. i never imagined the building

that i go into every day would be, you know, yellow taped and no access to that. the courthouse tlaechlts been seismic reconstruction and new business that is have come in right next to my office. they put in a brand new plate t stayed up. it works. brand new, cafe just opened its doors a few months ago and they're fine there. i am hoping that the businesses that have been reinforced are all good. >> there's a restaurant here. do you know if that was opened ? >> carpe diem doesn't usually stay open after -- [ lost audio ] >> so we can't see exactly what the damage is inside? >> no. you can see the shattered glass. i would think the other restaurant has a full wall of bottles. everything in our office hit the

floor. >> reporter: tell me your experience real quick. >> i'm from southern california. this felt like the big ones i've felt in southern california. it was pretty starting. my daughter -- [ lost audio ] >> -- almost 18 but she was started awake, screaming. my husband, everybody, we -- i was just waiting to hear the glass stop hitting the floor and shattering everything that was broken. like i said, you know, property can be replaced. it's people. that's what i'm worried about, t too, making sure everybody is okay. that's what really matters. >> like diana just said and bill dodd, supervisor just mentioned, this was retro fitted. right, diana? >> yeah. it looks like -- used to be right next door to that office not too long ago. couldn't have happened at a better time, 3:00 in the morning

on a sunday, nobody in there. it could have been a lot worse. >> reporter: right. in fact, right over here, i'm noticing the wells fargo build i ing. people are walking around with expressions of stunned belief. a lot of people that we show ed many people never experienced an earthquake before. we talked to one man from new york who said he was completely surprised and didn't know it could pack that much of a punch. we're still assessing damage as are county officials. three-story building, significant damage to that. so much so that we are told the emergency response center has been moved to the sheriff's office. that's where it's normally

located. on top of the earthquake, the shock of the earthquake, they had to move the response center to the sheriff's department. that is working well. but something -- they certainly did not need this morning. >> sure. >> live in downtown napa, cornell barnard. >> i don't know if there's a delay in our signal or not but you shot incredible video of bricks falling and it was like, whoa! you could hear people reacting to that. >> reporter: cheryl, i was ten feet away from that and it was frightening. it was at this building right here. lot of concrete. bricks fell off that building as we were standing by, ready to do another live shot for abc 7. so much yellow tape, keeping people away, keeping people safe. >> cornell, it's almost as if you need a hard hat to be in

that area. i don't mean that as a joke, but just for safety. >> reporter: i'm staying far away from this building, for sure. >> because we have images of brick that is fell on cars in the street, and each named. dating back to the gold rush. and mixed in are the newer construction. not a safe area to be in right now. those bricks came down on cornell hours after the first quake. >> i don't know if you're still with us or not. we are curious about the type of soil. we've heard one report saying it might have some sort of liquefaction or gravel base that might cause it to shake more. >> i'm sorry, repeat the question. >> we're wondering what type of

soil this old part of napa is on. if you could help us find that out, it would be great, for later on. >> reporter: certainly will. a lot of people saying it was clay soil that covers most of the area. it was clay soil. that's at least one official told me that a few minutes ago. >> great job. thank you so much. we'll get back to you in a few minutes. >> quick work. he has been doing a lot of research. amy has been driving around. she made it to valley queens hospital where they have that triage center set up. what do you see now? >> reporter: kristen, people are being treat eed right behind mes we speak. some patients who were bandaged up walked out of the hospital and over to this area. this is where they want all the earthquake patients. they're putting the number at 70 injuries but i think that number

is going to go up. we've seen a couple of people since we've been here in the last few minutes pull in and drop off friends or relatives who look like they have some injuries. we also have been told that the helicopter is due in here any minute now. so, injuries still coming in here to queen of the valley hospital in napa. most lly bumps and bruises and cuts. we talked to one woman on her way out. she walked herself out, no problem. she did have a cut on her forehead. she told us that during all of the shaking, she hit a door frame and then her glass s are seeing people with bandages here and a lot of nurses and doctors coming in. we talked to one woman who had a big cup of coffee in her hand. she's expecting it to be a long day. said her house is a mess from

the earthquake, but this is where she is needed right now. they are expecting a very busy day here. we haven't heard of any major injuries. that is the good news. we understand a public information officer is on her way to the hospital and will be a liaison for us. she'll be able to brief us on exactly what's going on inside. stay with us. we're going to stay here a while and make sure that everyone is okay. reporting live from napa, amy hollyfield, abc 7 news. >> amy, thank you so much. >> important to note. this could have been worse, if it happened at a time when a lot of people were out. it happened overnight. it could have happened yesterday when thousands of people in downtown napa, enjoying the brews, blues event.

happening at 3:20, many people were inside. we want to go to ama daetz, once again. you've been monitoring what's coming in to the newsroom. ama? >> a house on pine street. this is in napa. house being off the foundation with a person possibly trapped. this is the latest information coming in. you do see an ambulance come with its lights on and leave with its lights on. it is possible they transported someone to the hospital. you see a couple sitting there, as we take a look at this house, which is on pine street in napa, possibly off its foundation. flying over several spots where we've been seeing damage that is

happening. sky 7 hd checking out different damage in the area. we'll let you know as we learn more about that house, if it is off its foundation, if there is a person trapped inside. again, i did see an ambulance come and go. we have kimberly on the phone. where are you? >> caller: i was in napa when it happened. i'm trying to get to petaluma from napa was not fun. a lot of close injuries. like i told the train station thing was down. there was no train coming. it was pretty -- it was messy, messy out there. >> any damage to where you are at this point? >> caller: oh, yeah. sorry, i don't mean to cuss. from where i was, there was broken glass. silver, dressers, chairs. it was pretty -- yeah, there was a lot of damage.

>> pretty shocking, right? >> caller: i'm from southern california so not that shocking but this one hit hard. >> mpl, you are safe. thank you so much for calling in. >> caller: thank you very much. only thing i heard, there was a gas leak and my friend wanted to go and there was nowhere to get gas. they had to wait in petaluma. so hopefully, everyone is safe over there. >> absolutely. sky 7 hd on pine. this is in napa. this is pine street where a home possibly off its foundation, trying to make sure everything, everyone at the home was okay. apparently sonoma raceway is undamaged. there's an indy car series event.

they were checking out buildings. making sure everything was okay. >> ama, great information. people standing in that open field if, in fact, they went there because they wanted a safe place to be, we always learned in earthquakes that is not a bad idea at all, where nothing can fall on you, especially if you suspect you've been in a building that's been damaged. take to an open field. earthquakes do not injure or kill people. it's the buildings and fires and things like that, that do. live ground pictures of firefighters who have some water in their hoses right now. laura anthony is right there. laura, some good news. >> reporter: it is, actually. we've been talking all morning about the water main breaks. they weren't using the water to put out the fire at this mobile home because they wanted to make sure the fire didn't spread before they use their limited water supply. as you can see right now they've decided that the fires here, four of them, are pretty much under control.

they're just going to put this fire out finally. it's been really difficult to stand here and watch this mobile home burn. four mobile homes here, three in this immediate area and then of this is from gas main leaks, breaks in the immediate aftermath of the earthquake. one of the couples that got out only with their clothes on their back were theresa and bill. let's hear from them. >> the earth moved, the house moved. >> it was on fire and our neighbors over here, paula and her son, rory -- thank you, guys -- came over. the house is on fire. >> you guys were sleeping, i take it? >> oh, yeah. >> did you wake up with the

earthquake? >> we didn't really know what happened. it was -- the house was already on fire and it was hard to get out because it was separated from -- it was really scary. >> after standing here, how are you feeling? >> feeing like we lost everything. >> yeah, we lost everything. >> not everything, honey. not everything. >> reporter: again, that was theresa and bill. they didn't want to use their last name. this is the one that's been burning the longest here. they were conserving water and didn't want to put this fire out. now they've gone ahead and done that. over to the left here, this is theresa and bill's mobile home. their home completely destroyed, as you can see. obviously a very hot fire. and then if you look behind this one, there's another one over

there. that's the third one. in this immediate area. that one has also been burning for quite a bit of time here. and they're just starting again to put their limited water supply on that. these are, again, three total losses. there's another one to the right over there. we're going to stand back. things are falling to my left. unfortunate situation here. this is a senior community. several hundred of these mobile homes, seniors here. perhaps what's most remarkable is that the seniors all got out okay, no injuries as far as we know. jill, kristen? >> laura, thank you so much. we want to appreciate laura anthony's live shot right there at the heart of things. another live look at sky 7 hd over napa right now. we continue to look to see where there might be fires. we do know there were two mobile

home fires and seeing some emergency equipment there. lots of brick falling. kristen, you have something you want to add? >> napa police has let us know napa valley high school and grace church have been established as evacuation centers. pardon me, napa high school and grace church, both evacuation centers for people. and the address for grace church is 3765 solano avenue. if people are residing in a home that's been damaged, or the building may not be safe they may need to get to one of those evacuation centers for support as well. >> so many power outages. fa fairmont was passing out lanterns. this thing happened at 3:20 in

the morning. right now this sky 7 image shows you people standing in the middle of the street. that's the safest place for them to be right now. as you saw from the early images, a lot of brick was falling from the historic buildings, even though many of them have been retro fitted in the recent years. we want to let the folks know, who are just joining us on the half hour we've had a major earthquake in the napa american canyon area. it's on the west napa fault. and it was a 6.0. we've had some aftershocks since then. we've had a number of reports of injuries. >> this was posted on youtube by a viewer who woke up to the earthquake that we both woke up to. obviously, they have children in the house. you hear a little bit of

screaming. i'm going to let it go for a little bit. it's pretty intense. >> this is what happened at the safeway. customers are not coming in because they can't give service. everybody is on deck to clean up this mess. and we've heard most of the injuries are minor. there's been one heart attack. we have not, thankfully, heard of any fatalities. and we imagine as the light of day comes, people who have been slightly injured would not go to the hospital but those who felt traumatized -- you saw images of people hugging each other. it's terrifying in the middleative situation like this. >> video from highway 37. you see the crack there on vallejo. it's cracked and broken. road crews have been out, inspecting some bridges, in particular.

there was one in the sonoma area. that was earlier closed. no affects. transit. bart agency. no issues with the systems bart. a lot of road work will be needed. hopefully, people are being safe as they're out there, checking out the roadways. >> it doesn't hurt to slow it down a little bit in a crisis situation like this. you just don't know which roads have been damaged. we were talking earlier about how we were thankful that the bay bridge had been -- the new bay bridge is open. and now gasoline break in a mobile home park in napa. unfortunately, sadly, we know four of those mobile homes were destroyed.

and were brought in. and also the fact that it was seniors who resided there. a mobile home park that laura anthony reported for seniors. very difficult for them getting out. queen of the valley hospital has set up a triage center with 70 patients, 70 patients who have come in this morning mostly with cuts, minor injuries. one heart attack. they're telling us not life threatening at this moment. at the lucky's right there, a kauler called to say his son works at that lucky's and there was a ton of water and damage in that store. >> we want to let you know there

are evacuation centers set up, grace church on solano. 3765 solano avenue. for folks in that area who might be watching us. we've had major power outages. if you have a computer, somewhere you can get us online and certainly on your phone through our abc 7 news app. >> cheryl, you were talking about power outages in the thousands, of course. there are at least 50 known gas leaks just in the city of napa and 30 known water leaks and so that is going to cause major problems. >> cornell, you've been seeing this from the very beginning here. cornell? >> i'm sorry, cheryl. go ahead. >> cornell barnard is there live. we're looking at the damage there. you were there in the dark right

after it happened. >> reporter: we were here an hour after the earthquake. this is what we saw when the sun came up. this is a gold rush ear wra building. it was recently retro fitted. it certainly did not fare very well. the very top of the building is now precariously atop of the build i building when we got here, bricks were still falling off. we were ten feet away. bricks were continuing to fall off as people were standing pretty close to the building.

yellow tape going up all over the building. officials just don't know what the damage is. they don't know what the structural integrity of these buildings are. so, of caution. the southwest corner is completely gone of the old courthouse. quite a bit of rubble at the base of the courthouse. again, another gold rush historic building here in the downtown area. aungs that have been ripped up. carpe diem restaurant. they do a lunch business, very big dinner business, large wine

bar. all of the awnings on this side of the street have been ripped off as the bricks continue to fall off the very top of this building. on the other side, down at third and brown street, there is a car. the back windows have been shattered out of that after a concrete at the very top of the building fell on to the car. there are bricks surrounding the car, in fact. the wall of that building where the car is parked is leaning precariously out. a lot of that has been damaged by water, broken park inside. emergency response center had to be moved a few blocks away to the sheriff's department. emergency response working out well according to one county supervisor, saying things are

working the way they need to work and people are getting the help that they need at this point. we'll send it back to you guys. we're live in downtown napa. cornell barnard. abc 7 news. >> cornell, thank you very much. the evacuation centers, if needed in your case. one has been set up at napa high school at 2475 jefferson street in napa. >> and we have the second evacuation center as grace church 3765 solano avenue. as we continue our coverage on abc 7 news, we invite you, because we rely on you to please include us when you're talking about this on twitter at abc 7 news bay area and then e-mail us your video and pictures to youreport @kgotv.com. a lot of the images are coming from you as this is happening. >> amy hollyfield just tweeted that at the hospital that she

has been out, 87 patients is the update. two adults, unfortunately, in critical condition and one child was hit by a fireplace collapse. >> it happened at 3:20 in the morning. as dawn comes up and people start reporting into the hospitals, we'll bring you more information as it happens. meantime, sadly, a couple mobile home parks went up in flames because of a gasoline leak. laura anthony has been following this all morning long. laura? >> stand by. we'll try to work on getting her microphone on. no, we can't hear you. >> can you hear me? >> there you go. >> reporter: can you hear me now? >> yes. >> reporter: sorry. i turned it off. at the napa valley mobile home

park. these are three mobile homes where i'm standing that are completely destroyed. there's a fourth one a couple of blocks away. firefighters have now been able to put some water on it, limited water supply on these to actually put them out. joining me is a neighbor. tell me what you saw. >> i was awake fortunately, or unfortunately however you want to think about it. i saw flames out of the back of this house. okay, bill and theresa will get out of there fine. the fire department will be here. but the fire just exploded. just in a matter of a couple of minutes. it just erupted and it was frightening. it was terrifying. >> could you tell if folks were still inside or able to get out? >> yes, this couple here got out

right away and then my other neighbor on the other side, he jumped into his car and took off right away, because it was very dangerous. this house was actually starting to get very, very hot. he said his curtains were starting to melt. >> reporter: i see there's like a locker or mobile chair there. >> he got out fine. he's fine. >> reporter: tell us about this community. tight knit? >> yeah. >> reporter: lots of folks? >> very much so. very friendly. very quiet. when this happened, everybody convened in the courthouse. and we with all went around, checked to see for people, if there were any missing people and -- like that. so, no, it was -- everyone pulled together and helped a lot. >> reporter: it's one thing to have a large earthquake. it's another to have a water main break or gas main then water main. did you guys feel like you were kind of -- >> very vulnerable, if that's what you're getting to. yes. because i was in an earthquake a few years ago in seattle. and there was a lot of damage but there was no fire or

anything like that. this was a whole new level. >> i have to think when you first felt the earthquake, you think, okay, earthquake, shake, shake, few things fall down. we're done. right? >> that's what i thought and then the fire started. >> reporter: you all will rally around these folks, correct? >> always. always. yes. >> reporter: thank you very much. that's bill lind much er. he lives just across the street from the three mobile home that is burned right in this area. another one two blocks away. and this complex, then we understand there was at least one other mobile home fire somewhere else in town. in napa, laura anthony, abc 7 news. >> laura, thank you so much. science of this earthquake at

usgs in menlo park. there's been at least two fairly sizeable afterchicagos, right? >> that's correct, kristen and cheryl. we've been monitoring a number of aftershocks, more than 30 of them so far, greatest at 3.6 and a number of them in the one to two range. seismologists and geophysicists have been very keenly watching this event. of course, as we've been reporting, this is the largest bay area earthquake we've had since the loma prieta earthquake in 1979. they are wanting to learn an awful lot about what's going on here. what we've been talking about with the geophysicists here is that today's event was a strike split fault, event. that means plates of the earth were moving in a lateral way -- in other words, going this direction, as opposed to a trust fault, which means they slip in a vertical way. either type of earthquake creates damage and we've been

seeing damage in the bay area. i'm going to slip over here rkt if we have time to do so, to get brad agard live now. we were talking about this a minute ago. we can actually get him live now. i want to talk about the details we were going over a minute ago. can you come over here so you're in better light? ruptured gas lines, water lines, unreinforced masonry buildings coming down, is this consistent with the magnitude? what's the factor that's causing the damage, the depth, magnitude or the nature of the plate? >> it's really the shaking, which causes damage. so, having the intensity of the shaking that was measured, 40% g in the horizontal direction from acceleration and in terms of how fast the ground moves, about two feet per second, that's what dictates and controls the damage we're seeing in terms of unreinforced masonry.

smaller ground motion. but the ruptures of the gas lines, pipelines and so forth, that's the amount of strain that occurs, how much the ground is deforming quickly that the pipes can't keep up. and they tend to break. in terms of where this intensity of shaking comes from, that's the magnitude. so it's capable of generating this type of ground shaking as well as any larger earthquakes. we would not expect to see this level of shaking from magnitude 4.0 or 3.0 earthquake. the largest earthquake we've had since loma prieta is why we're seeing more damage than the magnitude 3.0s we've had. >> does this in any way imply we haven't made major steps forward in preparing for this next big quake? >> our building code continues to improve. we still have all those buildings that were constructed

over previous building codes. we've known for decades that unreinforced masonry structures do not perform well. mandatory retro fit program in california that helps to control those but they're still vulnerable as well as concrete structures built before 1970 that are vulnerable. those are really the structures we most worry about. that doesn't mean that other structures can't receive damage. and so it's continuing to update our infrastructure as, really, we have some of the economy and money to do that. mandatory retro fit programs for the soft story -- how we keep moving forward to update our infrastructure so it can withstand what we expect these earthquakes to bring. >> in your follow-up work after today's event, are you going to be looking into this, what recommendations need to be made here in the bay area?

>> primarily within the u.s. geological survey we'll be look at the shaking that occurred in this earthquake, in terms of how we do vm responsibility -- we have instrumented structures and not particularly in this area but some of the bridges were involved with instrumenting those. but it's really the engineering community that comes together and says, you know, how do we have to deal with these structures? really when it comes to the older structures, that's a polish. and local government and state government type of issue of how to deal with, legislate improvements. >> thank you very much. we appreciate that. 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, somewhat more in the near term than sort of days, hours go by, that probability starts to increase because we haven't seen large earthquakes, additional activity which is capable of larger events because it's a longer fault. that gives us some indication that, you know, no particular activity in that area to be even more alarmed about. generally we have the probabilities of larger events occurring in the bay area. >> does that answer your question, cheryl? >> david, thank you so much. it was very thorough. really appreciate it. we'll get back to you, david. thank you. a couple of things that we want to bring up right now. highway patrol and the napa police are saying the traffic signals are out in napa because of this big quake. and they are having the officers

direct traffic. remember, it's a four-way stop if there's no traffic signal. one more thing. because of this quake, because of the damage and the issues involved, we have a number of -- from amy hollyfield, 87 patients have come through the emergency room. sadly two adults in condition. >> there's some roadway damage. we want to turn to leyla, our traffic reporter once again. what kind of reports are you getting right now? >> from ace train, due to the earthquake, all tracks have been to be inspected before any movements are made. trains taking you to the 49ers game is canceled. ace train to the 49ers today is canceled. no trains will be running until they conduct some investigations and see that all the tracks are in good working order.

we have several issues. bart is running on time. that's fine. no damage reported there. we do have damage across the bay area. into napa, you can take a look at live -- we have our maps back up. highway 29 at highway 121, we have significant damage sustained there due to buckling of the roadway. and traffic lights have collapsed and fell into the roadway. that's also blocking lanes there. we had highway 37, transition road from i-80. that was shut down. that has reopened. amy hollyfield on the scene, showed us cracking on the roadway along the bridges and scenes of the bridge. it looks like that has reopened. damage is not significant enough for traffic to be reaffected. we had cars that were stuck in

the earthquake and those sustained flat tires. as we've been warning folks, if you do need to head out today, drive with caution. go slower. you can't often see the road ahead of you. if you do come up on some buckled roadways, that will cause damage. you could hurt yourself. no damages as a result. the bridges that take you from the north bay into the east bay, hercules and martinez respectively. it looks like those are also fine. no damage was reported there. along highway 37, that ride is also moving along just fine. we don't have any sustained there. highways 121 and 116. and that is where that could

possibly ask your travel if you are coming in from sonoma, from the north bay, heading over toward s sears point. we have word there is a mudslide or rockslide in hope valley. and it looks like that may possibly be affecting roadways in the immediate area. other than that, chp, significance. it looks like the major bridges, carquines bridge, that's all fine. >> ama daetz is in the newsroom. you just got some information from the city of napa with regard to this quake. >> we did. they just want to update everyone about the earthquake and the aftermath.

two major injury cases. hip fracture, heart attack. a dozen ambulances running and 10 more are coming in to service. as laura anthony showed you, two are on fire in orchard avenue north napa. 50 gas main breaks right now. with the water mains, about 30 water main leaks, water treatment plants are running. no damage there. some areas have no water because of the main breaks and some have no or low pressure. water is safe to drink. it is safe to drink the water. crews are assessing the infrastructure and damage there. there was some historic buildings that were damaged as we saw the bricks coming down on these older buildings. goodman library, napa county courthouse. two commercial buildings in the downtown area are also severely damaged. shelters. we mentioned places where people can go. red cross evacuation center has been set up in the napa high

school gym. and drop boks will be placed at local area schools. if you had bricks come down take them to your local schools in the area. you're looking at video from earlier. we saw buckling of the roadways, cracks in the concrete. that is the latest from napa. they will be updating us at 10:00, so in just two hours. >> we're continuing to get updates about major structures around the bay area as to whether there's any damage to them or not. we just heard from the san francisco 49ers who tell us there is no issue with the stadium from the -- the new stadium from the earthquake. what you're looking at right now, sadly, is mobile homes in napa that were on fire and completely destroyed. compounding that there.

lack of water pressure because water mains broke. >> we also have information that president obama has now been briefed on this morning's earthquake in the napa area. federal officials are in touch with state and local responders and the president will continue to get updates and he will want to know about this. photographer dean smith giving us live pictures right there. children, adults standing around, looking at this incredible picture, concrete of their pavement that has come up and risen like two feet. >> when we first showed you this picture, they had towels and bath robes around them. if you didn't feel this quake -- this happened 3:20 in the morning and it was a rude awakening on a sunday morning. our matt keller was first on the air here. now he is live in napa with the situation here. you really got there quickly, matt. >> reporter: we got here quickly. it's a mess here in downtown

napa on first street. i show you the hotel here, 141 rooms. all evacuated. all the people were told to leave about 3:30 this morning, after the earthquake. a lot of people said they didn't want to stay inside anyway. it was a big mess inside. a lot of glass broken, people talking about mirrors exploding on them. we had our photographer scott look up to the fas aid, i'm going to have him show the cracks in building here. down below you can see debris on the street here, on the sidewalk. so it's a good thing nobody was around, walking in the early morning hours. because you can see a lot of the front of the facade on the ground, on first street on the sidewalk. you can see some of the debris that fell on to the ground. the alarm went on inside this hotel, and there were a lot of people who came out, obviously couldn't be inside their hotel. carrie kessler is visiting here

and was told to leave the hotel this morning. tell me what happened when the earthquake struck at 3:20 this morning. >> well, this is a little embarrassing, but i was in the restroom and that's where the mirrors and the showers are, of course. and the tank of the toilet moved on to my back, pushed me forward and the glass from the mirrors came and put chards and fragments everywhere. any time i tried to move i got glass in my feet or other extremities. my husband did his best to get in there and we limped out of the hotel. we knew we needed to leave, because it was -- it felt still pretty dangerous. so, we went up through the back and then we tried to figure out how to get to a hospital and one of the local city councilman happened to be there by a paramedic truck and offered to take us. >> reporter: you had a city councilman take you to the

hospital. we'll show awe little video from earlier today. we want to show here as you -- >> i'm not the worst victim by any means. >> reporter: but you did have to go and get treated because of the glass cutting you. >> they did a nice job for triage. they had an entire tent because there was a lot of people -- it was a bloody kind of sight. they did a really nice job containing that. >> reporter: you guys are planning on going to the race at the sonoma raceway. those plans may be up in the way right now? >> they are. >> reporter: you are here from utah? >> from bridgestone.