After about a week, the blisters will start to dry up and the rash will start to go away. In severe cases, where the poison ivy rash covers large parts of the body, it may last much longer. Source(s): http://familydoctor.org/839.xml. Insane Â· 9 years ago.
Everything in the bay area, including Silicon Valley, and most of the populated and coastal areas of Southern California are in the high risk zone for the San Andreas and associated fault systems. See Alexander Lee's answer for the map of relative shaking risk in CA. We do not know where the next 'big one' will be.
The result could be multiple faults rupturing in a simultaneous mega-quake. Stated another way, the chance of an 8.0 or greater quake in California can be expected once every 494 years. The old forecast calculated a rate of one 8.0 or greater earthquake every 617 years.