We had a Disaster Preparedness presentation where I work - allow me to spread the word about the quake drill for Californians, to be held Oct. 21. The County Museum has background information on different quake scenarios, video clips that mimic the effects of movements on the San Andreas, and of course more advice on what to think of ahead of time. The site name for next week's drill is
www.shakeout.org, and the County Museum is at
http://co.san-bernardino.ca.us/museum/ .
Basically the most predicted movement is that a segment of the San Andreas approximately 150 miles long could move all at once, sending waves throughout all of Southern CA, even though the moving section is predicted to be mostly in the Coachella Valley. So much movement would give almost anywhere in SoCal a long shaking, and predicted movement at Blue Cut, for instance, is 13 feet of sideways slippage along the San Andreas. Since power, trains, gas pipelines, oil pipelines, and of course the 15 Freeway go through there, large parts of the Inland Empire would be very hard hit, and for a lot longer than 72 hours. I can barely even imagine being on the 15 and suddenly being tossed about, and then seeing (if I were lucky) that the freeway was torn and part had moved 13 feet......
http://www.earthquakecountry.info/video/index.html is another site, with videos.