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Old 10-21-2008, 07:30 PM
 
Location: Zurich, Switzerland/ Piedmont, CA
32,341 posts, read 55,131,075 times
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Today is the anniversary of the last big one on the Hayward Fault 140 years ago. Scientists believe that this fault, on top of which directly lives 2 Million people, has a big quake every gulp, 140 years.

BBC NEWS | Science & Environment | America's 'most dangerous fault'

simulation.

YouTube - M7.0 Earthquake Simulation for Hayward Fault, California

scary vid.

YouTube - The Next Big Quake

The Hayward Fault is the prominent red line that runs along the East Bay Hills


The Hayward Fault runs right underneath the Stadium at UC Berkeley


I usually dont worry about earthquakes having lived through the 7.1 Loma Prieta Earthquake in 1989, but this one is different.
Quote:
Major quakes along the Hayward Fault occur about every 140 years, and a magnitude 7 quake on the fault today would likely leave about 100,000 people homeless and cause more than $1 trillion in damage, according to the Association of Bay Area Governments and the U.S. Geological Survey.
Hayward Fault is our deadliest - a 'tectonic time bomb'

Some say the Eastern Span of the Bay Bridge(currently being replaced by a new one under construction) would collapse.
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Old 10-21-2008, 08:35 PM
 
Location: Southeast Missouri
5,812 posts, read 16,649,938 times
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The New Madrid Fault is way overdue for a large quake as well.

When/if it eventually does go off it could cause a lot of damage to St. Louis and Memphis.

139 years since the last Hayward quake. Wow.
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Old 10-21-2008, 08:39 PM
rah
 
Location: Oakland
3,315 posts, read 8,118,861 times
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Here's a map from a wired magazine article, showing where earthquake damage would be the worst:



California Is Due for a Katrina-Style Disaster | Wired Science from Wired.com

The article also states that only 8% of businesses and homes in the Bay Area have earthquake insurance. Basically, we're gonna be screwed...there's pretty much no where in the Bay Area that will have less than "strong" shaking, except for sparsely populated areas. Even the Central valley is going to feel it a lot.
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Old 10-21-2008, 08:55 PM
 
Location: Rural Northern California
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I find it interesting that Sacramento and Stockton both are in yellow "strong" zones, but surrounded by green "moderate" zones.
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Old 10-21-2008, 08:58 PM
 
Location: moving again
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Glad to live in the East.

Haha no im just kidding thats not good. Especially for the beautiful San Francisco
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Old 10-21-2008, 09:18 PM
 
Location: On the Great South Bay
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This is scary stuff. Never have been more afraid for our future as I am atm. You think what happened to New Orleans or almost happened to Houston would be a wake up call but apparently not.

18Mont - has the word gotten out to the general public? Are a few people taking notice at all? Or is everyone still watching repeats of reality programs on tv?
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Old 10-21-2008, 10:32 PM
 
Location: Southeast Missouri
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Wow. More people need to get earthquake insurance, though I'm sure it's expensive in Southern California.

Is this expected to be worse than the 1989 quake?
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Old 10-21-2008, 11:16 PM
 
Location: Zurich, Switzerland/ Piedmont, CA
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Quote:
Originally Posted by STLCardsBlues1989 View Post
Is this expected to be worse than the 1989 quake?
If it happens, almost definitely worse than 1989. For one, quakes that occur on the Hayward Fault are shallow, which makes shaking more violent and this is directly under 2 Million people in the heart of the Bay Area.

The rupture of an faultline is bad, but it seems Geologists dread the Hayward Fault more than others whenever they talk about damage.

Here is the Cypress Fy in Oakland when it first opened


Then after the Loma Prieta Earthquake of 1989, which was 7.1 on the richter scale.


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Old 10-21-2008, 11:19 PM
 
Location: los angeles
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We have to live with earthquakes, esp in California. You can't do anything but keep plenty of supplies, know how to turn off the gas & ride it out The Hayward Fault is just one of several active & dangerous fault lines in California. Even though the San Andreas gets much attention there are others that can do extreme amounts of damage [like the Newport Beach-Inglewood fault in LA & Orange county] that seismologists predict will cut loose at any time.

If our houses get destroyed we can apply for federal assistance & rebuild like people along the Gulf coast\Florida after hurricanes.

I have family in Fremont\ Vallejo\ San Anselmo who live near 2 deadly faults [Hayward & San Andreas] so I hope nothing happens but if a bad earthquakes occurs they will get through it like all the past earthquakes.
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Old 10-21-2008, 11:33 PM
 
Location: Zurich, Switzerland/ Piedmont, CA
32,341 posts, read 55,131,075 times
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Quote:
Originally Posted by LINative View Post
18Mont - has the word gotten out to the general public? Are a few people taking notice at all? Or is everyone still watching repeats of reality programs on tv?
Everyone who lives here is quite aware of what could happen, but its something in the back of peoples minds most of the time. I rarely think about quakes but the news was so frightening it got me thinking.
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