Preliminary findings show two South Bay dams are vulnerable to earthquakes

Preliminary findings of a seismic study conducted by the Santa Clara Valley Water District has found that Calero and Guadalupe dams are subject to significant damage if a major earthquake were to occur within close proximity of either dam. The analysis also found that a major earthquake would only cause minor damage to Almaden Dam. READ MORE

Red Flag Fire Warning

The National Weather Service San Francisco Bay area has issued a Red Flag fire warning for the North and East Bay Hills for Tuesday Evening 10PM (Oct 25, 2011 ) through Thursday Thursday Morning 6AM (Oct Oct 27, 2011).

A Red Flag Fire Warning means that critical fire weather conditions are either occurring now or will occur shortly.

Anderson Dam Seismic Risk

The Santa Clara Valley Water District announced the results of a seismic study that determined the 60-year-old Anderson Dam might collapse if a "maximum credible earthquake" of 7.2 magnitude on the Calaveras fault struck within 1.25 miles of the dam. That quake has a less than 1 percent chance of happening. But if by bad luck it did, the sand and gravel in the foundation of the dam would liquefy, causing the structure to fail. READ MORE

Santa Clara Valley Water District Press Release

Santa Clara Valley Water District Report

Update: Soft-Story Risk in South Bay Aparttments

Eight years after a survey counted 2,630 earthquake-vulnerable "soft story" apartments in Santa Clara County, little progress has been made in publicly identifying, inspecting and fixing these buildings. READ MORE

Updated Hayward Fault Scenario

You are cordially invited to join the Northern California Chapter of the Earthquake Engineering Research Institute at our next meeting where the newly updated Hayward Fault Scenario will be released. We are confident that you will enjoy this meeting, given your interest in reducing seismic risk in the Bay Area.

The evening's presentation will share expected consequences of an anticipated magnitude 7 Hayward fault earthquake, and discuss how impacts have changed since the original Hayward fault scenario study was released in 1996.

For more information, please visit our website ...

Meeting Details:
Date: Wednesday September 15, 2010,
Time: 5:30pm to 7:30pm, at the
Location: ABAG Auditorium, located at 101 8th Street, Oakland, CA 94607
Public Transportation: Lake Merritt BART Station (directly across the street)

Please RSVP to chapterinfo@eerinc.org

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California Earthquake Preparedness Survey

The California Earthquake Preparedness Survey (CEPS) was conducted by the UCLA School of Public Health and Survey Research Center for the State of California. The objective was to provide baseline data describing how prepared California households are for earthquakes and where they get their information about preparedness and mitigation.

Telephone interviews were conducted with a representative sample of 2,081 households in California between June 26 and December 18, 2008. The sample was stratified into: the ten northern California counties at greatest risk of earthquakes, the six southern California counties at greatest risk, and the remaining 42 lower-risk counties. MORE INFO...