Earthquake impact (Big One)......

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OC_IHB

OC_IHB

New member
I am trying understand what kind of impact a big earthquake (Big One-Richter scale about 8) in the San Andreas fault might have in the Irvine Area.

1)Is there likely to be major primary damage-collapsed buildings ,bridges,fires etc?

2)What kind of seconday impact should one anticipate-food,water shortage?

3)Can new buildings being built withstand an 8.0 earthquake?Does the building code reqire it ?
 
OC - The only info I have is in regards to question 3. Buildings, bridges, and other man made features are not built to withstand a certain number on the Richter scale. They are built to withstand specific physical forces, but it impossible to know exactly what forces a number on the Richter scale will produce. A 5.0 quake with the epicenter directly underneath a building may destroy it, while a 6.0 with the epicenter 100 miles away may produce no damage to the same building. And different quakes produce different movements and differnet forces, so the Richter numbers are not a accurate way to guage the effects on man made features.
 
Here are some websites to help with #2. I'm prepared with about 7 days worth of supplies - water, food, lanterns, batteries, fire escape ladders, etc. I'm a little over the top with the preparation - but I would rather be overprepared.

Preparedness Websites

http://earthquake.usgs.gov/learning/preparedness.php

Disaster Help

https://portal.disasterhelp.gov/suite/portal/index.jsp;jsessionid=329A2C1DF023BD5F1C5E7825D198C8E1.node2

USGS

http://earthquake.usgs.gov/regional/states.php?regionID=5

American Red Cross

http://www.redcross.org/services/disaster/0,1082,0_583_,00.html
 
OC,

The San Andreas isn't really the one you have to worry about. Check out this map:



The San Andreas is 1i and 1j on this map, near Palm Springs. The ones that will do the most damage to Irvine will be 126c,d; 127b,c,d, and those 4 or 5 directly off the coast could reshape NB/CDM if they broke hard enough. All those pretty cliffs and bluffs along the coast aren't the result of erosion.
 
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