Quote:
Originally Posted by vivfox
LOS ANGELES - Scientists have detected a spike in underground rumblings on a section of California's San Andreas Fault that produced a magnitude-7.8 earthquake in 1857.
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I wonder why the article (or the Berkeley researcher) says the 1857 Fort Tejon quake was a mag 7.8. The USGS for many years has listed the quake as a mag 7.9 -- the largest ever recorded in California.
Quote:
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USGS seismologist Susan Hough found the latest observations intriguing, but said it's too soon to know what they mean.
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Susan Hough wrote a good lay reader book on California quakes called
Earthshaking Science: What We Know & Don't Know About Earthquakes, for those who may be interested. She sometimes even posts to Usenet. She's very friendly, very approachable.