This article appeared today and nicely explains the situation at Cajon Pass. A great San Andreas event with surface faulting through this and other lifeline corridor crossing points will potentially sever the links between the urban metropolitan area and the rest of the nation. Through the ShakeOut study, we see that the economic and social impacts of this are enormous. It is therefore crucial to plan for efficient repairs to these lifelines in the event of a real earthquake. ShakeOut is an opportunity for people to engage in such planning, and we have been working with the lifeline utilities operators to accomplish this and to encourage retrofitting and creative engineering solutions to make lifelines more resistant to earthquake damage.
http://www.highlandnews.net/articles/2008/10/16/news/04earthquake.txt
In the photo, a scarp along the San Andreas lies in shadow beneath my arm.
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