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Pastimes : Don't Ask Rambi -- Ignore unavailable to you. Want to Upgrade?

To: JF Quinnelly who wrote (25887)	5/26/1999 12:11:00 AM
From: Neocon	Read Replies (1) \| Respond to of 71178

Mine was a no- fault post. Someone else started hurling them around. I do not recall the precise terminology the bus driver used, but it was meant to convey the idea of a disastrous quake that was overdue in the Bay Area. Maybe he said "The Big Kablooey"...

To: JF Quinnelly who wrote (25887)	5/26/1999 3:14:00 AM
From: Michael Sphar	Read Replies (1) \| Respond to of 71178

Yeah, he's seriously confused. You can't time 'em even by the decades, and you can't predict the locality or the magnitude. The major known faults up here are the San Andreas, which has been quite civilized for a good long time, and the Hayward fault. The San Andreas was the one that slipped a bit in 1906 and caused an 8.x level disturbance in the City. That must have been big! When Loma Prieta shook back in 1989, it scared me enough to dive under my desk and it was only a 7.0 or so. 8 would be an order of magnitude bigger. Thats big! Fill land usually is most affected, but everything shakes, for a few seconds. We had a floor lamp topple over and a figurine broke a small piece off when it toppled. Never-the-less we slept under the stars that night. By the next night we were more blase and back in our regular beds. The San Andreas fault runs parallel to 280 crossing right under Stanford's Linear Accelerator and right up through the valley where Crystal Springs reservoirs cradle San Francisco's drinking water. It dives down into the ocean in front of the Golden Gate around Pacifica crossing northwards and reemerges to divide Point Reyes peninsula from the mainland. Oddly, the biggest damage caused by Loma Prieta's shake was over in Oakland where a double decker freeway section of Hwy 17 collapsed. The bay bridge had only one section of the upper span drop down to the lower span. The Hayward fault runs from the foothills of East San Jose right up the eastern side of the bay area between 880 and the East hills. When that one goes big the odds are likely a lot of damage will occur. The notion of Calif falling into the ocean is a bonehead distortion. California will accrete. Something to the east will subside a bit, something to the West will emerge a bit. In a billion years or two maybe the subsidence will be noticeable, but who will care? There is evidence up North - Oregon/Washington coast that some sort of mega-Richter events have occurred in geological/historical past. Don't even want to think about something like that. Given the choice between equakes and 'canes however, I'll throw my lot with the quakes any day. We've only had two significant quakes in the last 90 years around here. That's a lot of "wait time" in between.