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'Hidden' earthquake faults underlie Peninsula

Original post made on Feb 25, 2011

The San Andreas fault might be the iconic expression of the shifting tectonic plates sliding deep beneath Bay Area residents' feet, but numerous faults run up and down the Peninsula, some with a potential shaking power that has not been evident in what geologists consider "historical times" -- since 1776.

Read the full story here Web Link posted Friday, February 25, 2011, 11:32 AM

Comments (9)

Posted by keithw, a resident of Atherton: West Atherton
on Feb 25, 2011 at 12:20 pm

Sure would have loved to see a hyperlink to a USGS map of the faults as part of this story. This is a very good story, but the addition of a link to a map would make it much more useful.


Posted by Nick Szegda, a resident of Menlo Park: Downtown
on Feb 25, 2011 at 12:38 pm

Recent fault activity, Bay Area:
Web Link

Earthquakes and Faults in the San Francisco Bay Area (1970-2003)
Web Link

A thumbnail (not much detail) is on the main page, but one can download a more detailed map from another link on the same page.

Please copy and paste the links into your browser if you can not click through.

The USGS library can be very helpful. Their number is 650-329-5027.

Nick Szegda
Menlo Park Library


Posted by Alice Hansen, a resident of another community
on Feb 26, 2011 at 2:37 pm

Earthquake faults - another reason to stop High Speed Rail on the Peninsula.


Posted by Interested in Science, a resident of Menlo Park: University Heights
on Feb 27, 2011 at 10:34 am

Thank you, Almanac. Excellent article.


Posted by MONDIEUX, a resident of another community
on Mar 1, 2011 at 7:06 am

If anything, it is the best advertising to start building HSR routes out of the PENINSULA!
How would supplies and evacuations happen when the roads come to a standstill if a tree falls on the highway?
Duh


Posted by Bunkers, a resident of another community
on Mar 1, 2011 at 7:09 am

For people who have cement bunkers built and there are dozens in Woodside and Atherton and the Golden Corridor.
If people who have built the 100's of them, they have been tested as innefectual in case of a tremblor above 6 points on the Richter.
They are useless as is the canned foods and caviar.


Posted by Peter Carpenter, a resident of Atherton: Lindenwood
on Mar 1, 2011 at 7:12 am

Mondieux asks:"How would supplies and evacuations happen when the roads come to a standstill if a tree falls on the highway?"

IF there is a big earthquake there will be neither evacuations or resupply from the unaffected areas for WEEKS and our water supply may be cut off for months.

The only prudent response is careful preparation. Take a CERT course offered by MPFPD, join your local CERT Team, acquire your own emergency supplies, get a HAM radio license. Without these simple preparations you and your family will be in grave danger AFTER the earthquake.


Posted by alice Hansen, a resident of another community
on Mar 1, 2011 at 2:11 pm

Has anyone done research on what happens to High Speed Rail trains during an earthquake?
Ariel, trenched, tunnels?


Posted by Ed, a resident of Atherton: other
on Mar 1, 2011 at 2:22 pm

Good question Alice.
What happen is that the big elevated tracks twist and fall down, preventing all emergency services and Fire officials from getting from one side of town to the other to set up command post or organize the chaos . Which side of the tracks do you want to be trapped on everybody?


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