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Pastimes : NNBM - SI Branch -- Ignore unavailable to you. Want to Upgrade?

To: Mannie who wrote (2243)	3/2/2001 2:12:55 PM
From: Wharf Rat	Respond to of 104216

Hi, Scott. I was pretty amazed by some of the pictures I saw, most noticeably a 4 story brick building with "only" cracks in it. It probably would have totally collapsed down here. Brick buildings have been banned since the Long Beach quake in the '30s. I heard a brief discussion about the difference between this one and the recent Calif quakes (SF and LA), and that damage was much more limited up there. I gather some of it is because this one was so deep in the earth, but another factor is that much of the Bay Area is built on either reclaimed bay, or on old sediment beds. Major quakes go thru this stuff like it was jelly, and there is a liquefication process which occurs, which compounds the damage. I'm just really glad yours wasn't any worse; I gather that the only fatality so far was from a heart attack. I'll bet there was an increase in premature babies, too. I think that the Juan de Fuca plate comes down to here. There is a point in the ocean near Eureka which is a triple plate junction, where three plates overlap. I think JdF is one of them. Mike