the granddaddy of all of these is the san andreas fault. it is the longest. it can generate the greatest earthquakes. >> it is just south of san francisco. it goes offshore down here. >> from my house to the fault is about 3 miles on average. >> the closest area in san francisco to the fault is this area here in the southwest part of the city. people said that the closer you are, there are conditions that exacerbate issues. >> the fault's effect on development depends on the fault type and soil component. the san andreas is the main fault. there is the hayward fault. the difference between the two is that the san andreas is predominantly offshore. the hayward fault actually crosses beneath populated areas and poses a larger threat. as we speak, there is a 67% probability of a major earthquake on one of these faults in the next 30 years. it is of major -- high probability. it is a magnitude 6.5. the 1906 was 7.9. the 1957 earthquake was 5.7 on the san andreas. the loma prieta was 7.1. it was so far with it we got a little effects of it. that is the overview of

if the san andreas slips down there and comes this way, within this five kilometer zone of san franciscothe richmond/sunset is going to shake dra mat cli harder. >> in 1906 it didn't matter because the rupture went from the ep pi center off of lake merced and went in both directions. so the doppler effect was felt in both direction. >> also in 1906, nobody was here, right? >> well sue sudro was here. >> if a tree falls in the forest, and nobody hears it, well now there's a lot of housing here and somebody's going to feel it. >> i saw a map that this area was severely shean in 1906 although almost no houses were here. we can expect the same action? >> i think you have to different differentiate, but you may not get as much damage here as you would at the shore line or san francisco bay. this is a rough site -- >> if you're going to be out in richmond, it's right there. >> yeah. i have heard that along ocean beach here and a few blocks in, there are some special hazards because of the fact that there's water underlying the ground and so on. is that -- >> yeah. there are hazards associated

there is san andreas, here is the lake, the reservoirs in the area. you're just coming out of the foothills into the mountains, into the pine region. but you're right in that transition zone, 93 there right now, no wind, very little wind, it is light, that is good news. the problem firefighters are having with this one is likely getting access to it. as you saw there is not a lot of roads in this area, a few dirt roads, even a paved road. right now, fog, shallow along the coast, there was a spare the air day, that is how thick the atmosphere is. over the top of your house in san jose, that is about 5000 feet thick. the particle get stuck in that, air quality will be better tomorrow. temperatures will come down tomorrow by a few degrees. your forecast then for tomorrow morning, very dense fog along the coast because it is compressed. and it will push inland but not as far inland as livermore valley or walnut creek, fog in albany, four to eight degrees cooler, still 90 near inland. tracking this, this is down the road weather story. towards friday and s

and i am going to be really pleased when it is all done, considering where it is relation to the san andreas fault. president vietor: is there a motion? commissioner: so moved. commissioner: 2nd. president vietor: some comments. commissioner moran, and i am sure it was a fiercely debated at the management level. >> we did not have as many owner-initiated changes. the situation was an appeal. president vietor: right, right. commissioner caen: you have stated here to authorize the general managing to consider and if appropriate to approve. is that not a little wishy- washy? i would like to know the numbers as opposed to "if appropriate." >> the way it works, because you're in construction, decisions need to be made very qckly because of the standby cost a lot of times, the way we work it is whenever we go over the 10% contingency, all of these additional change orders need to get funneled through the general manager, which normally they would not, so that is kind of what that language states. basically by approving these agenda items, you are intrusting the general manager in making a judgment

this is closest to the san andreas fault. many people believe that the closer you are to default, the greater the ground motion might be. that is a portion that is a south westerly portion of san francisco that has some special earthquake hazards. we are here to talk about the geology of this area. why don't you tell us about what is going on? >> there is a giant step here at the edge of the escarpment, the edge of the landslide. all the land to the west of us is part of a landslide that is upwards of 200 feet deep. it goes underneath the ocean. it causes damage and it was mapped by the earliest geologists'. there are many kinds of rocks here. there is a big sequence of merced formation. this is a base in deposit that was formed by the interaction at the end of the continental margin. >> this is just on top. this is the same material that we were looking at at the last site. you can see it is on our way to the last side. it is deposited here by wind. it is 40-50 feet thick. this acts as a big sponge. the water flows through a

completed complot rigid construction on four, zero projects that are a part of the influence under the san andreaslt. also, the excavation of two large tunnels. one on the east bay, one on san francisco bay. pursuing rapidly, we have a full use of a number of key facilities that are adding seismic liabilities and separation of flexibility is. just two examples here. we have a new treatment facility, the largest in california that is operating. with so much work currently in the field, there are challenges that are typical of a large, infrastructure program. unforeseen conditions is something that we encounter a lot. we can make some assumptions as to the typical conditions that you will encounter. often in the field these conditions, previously assumed as changes, are very hard to control. project sizes that may lead to changes. much of the designs are based on documents coming from the early 1900's. that is an extra challenge. we have encountered new regulatory requirements during construction. storm water management, for example. we need to adjust our documents. with some of our contract documen

it was created by the san andreas fault that straddles the pacific and north american plates. >> with phases and the phases of the tide, like the phases of the moon, you know, you see it in all its different moods. >> reporter: but the biggest threat to the lagoon isn't its geological peculiarities. it's man. >> humans start impacting it in the 1800s with logging and farming and ranching, and from there we start building along the lagoon, putting in roads, houses. >> reporter: caltrans roadwork along the highway 1 bordering the lagoon marks the first phase of the restoration. crews will use rocks and drainage systems to stop dirt and sand from washing into the estuary. >> about 14 that they're paving that helps reduces the amount of dirt that actually gets into the lagoon. >> reporter: the next phase of the restoration will involve removing invasive plants and species. >> so we're looking at reversing all these negative trends and restoring it back to its more healthy state. >> reporter: but keeping it healthy will take protection. in 2007, oil from the costco spill drifted into the l

breaking news, an out of control wildfire breaking out in calaveras county, the two closer towns, san andreas and mountain ranch, some type of house there, looks like a house, the flames are getting very close to some of these buildings. we saw pictures a moment ago where you can really see the flames jumping from tree to tree. the fire has burned anywhere from 30-50 acres, this is a relatively remote area. but as you can see here there are some homes in that area. and they are asking some folks there to evacuate because of this fire. we want to bring in our chief meteorologist big mauer now. >> i know this area pretty well, grew up in the foothills north of here. you're in the foothills, a little higher than the foothills, this is a terrain- driven fire, look at the smoke, not a lot of winds there. light and variable, sorry about the picture there, the largest gust is about 10 miles per hour. the winds are light, variable, near mountain ranch, the population there is just under 2000 people. when i saw terrain driven, now, this is different. when you think of oakland hills fire, you think of

you have to know that if you live near the san andreas fault, you'll be dealing with potential earthquakes thing on the pacific rim and including parts of italy. >> have you ever heard of anything like this before dealing with a meteorologist where someone held them responsible? >> to be honest, i think tlrs there was something that did occur at one point where there was a meteorologist that failed to predict mudslide situation. >> make sure your forecast is right. the pressure is on, whew. this is not the flag of surrender. we're going to get things started with the tropics, namely with tropical storm ophelia. earlier we were talking about hurricane hilary which is in the pacific. today, it is ophelia we're dealing with. we often see a fluctuation of power with these tropical systems. there will be no exception with this one. we see a forecast where it is going to change in power and it's fluctuating a bit. we're seeing something else ramp up. tropical depression 17 is off the coast of africa. we're going to watch this for you very carefully. to be honest, ophelia is our biggest concern.

i live in bakersfield which sits on the san andreas fault.hey will get one of the big earthquakes and you cannot even count on help. we may have to give up something according to the republicans like social security. i am really worried about obama getting in this year and i will get whatever i can. i am on social security now. it is not much but i may give $10 per month host: let's hear from jen who gave $200. caller: thank you for taking my call. i wanted to thank you guys for bringing up this very important topic. this is the source of democracy, really, the fact that small donors will get involved. it is the most important thing you can possibly do even if it is $10 or $15. our government is basically currently broke, in my opinion. i'm a surgeon and i work very hard. i have worked hard to get to the point i am currently. i am in an underserved area and they consider me ultra-wealthy and i really think we need to work on this and i think we need to get all the incumbents out host: who donate $200 to? caller: ron paul. host: was that the l

andrea who runs the merchant association. >> so with the purpose of sanitizing nudity, san francisco supervisor scott weiner introduced legislatione assaulting down and cover up themselves before entering the restaurants. >> it's not whether to ban or not ban public nudity. it's about health. >> several men walked past on full display. this man did not have a comment. another worried about overexposure in the media. he bared his body and soul while sitting on his pants. >> sigh it both ways. it's already what is nudist etiquette. >> it must have a public hearing. >> you can't sit naked in parking bench and you can't go into the restaurant, what is left in the city? >> even a city like san francisco, there is a limit to tolerance. from city hall, wayne freedman, "abc 7 news." >> quite a revealing story. >> yes. so is this one. another bottom line story, parents are saving on diapers. bloomberg business report is coming up. >> and john edwards says the constitution is on his side. why the former presidential candidate says prosecutors have gone too far in the charges against him. >> selling six packs, beer could be the key to getti

andrea that run a local merchant association. >> so with the purpose of sanitizing nudity, san francisco supervisor scott weiner introduced legislationo require to cover before sitting down and cover themselves before entering restaurants. >> this legislation is not about whether to ban or not ban public nudity. it's a basic public health measure. >> as we sit around castro and market, several men walked past on full display. one a no comment. george davis bares his body and soul as sitting on his pants. >> i see it both ways. >> the supervisor has proposed legislation must undergo full scrutiny in a committee. >> you can't sit naked in park bench and you can't go naked in a restaurant, what is left in the city. >> there is limit to tolerance gland recapping our top stories, a as we approach the 10th anniversary of the 9/11 terrorist attacks many bay area emergency responders there is major obstacle to communicate between each other. >> the department of homeland security emergency commanders should be able to talk to each other within an hour of a major incident. they are reporting we're still a long ways from. that the article talk

andrea. who runs a local merchant association. >> shall we have a seat? >> sure. >> and naked people sit here with bare butts. >> so san francisco souper visor scott weiner to cover themselves before entering restaurants. >> this is not about whether the ban or not ban for nudity. it's a baigsic public health measure. >> as we stood around today, several men walked past on full display this, gentleman had no comment. another worried about overexposure in the media. and george davis bared his body and soul while sitting on his pants. >> i see it both ways. it's it's nudist et yi quit. >> the supposed legislation must under go public hearings, since no food will be served we preassume clothing will remain optional. if you can't sit naked on a park bench what is left in the city? >> a lot. >> and it would seem even in a city like san francisco, there is a limit to toller yens. wayne freedman abc 7 news. >> thank you, wayne. >> and a fight over same-sex marriage that began in 2004 was w.unauthorized marriages in san francisco had yet another day in court. this time in the state high court. and california supreme court just

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