Understanding the Loma Prieta Earthquake: 10 Years Later At 5:04 PM on October 17, 1989, the San Francisco Bay Area was severely shaken for 15 seconds by the Loma Prieta earthquake located to the south on the San Andreas fault near Santa Cruz. Although the quake did not tear the ground surface, it collapsed some buildings and freeway overpasses built upon the soft “bayfill” sediment in San Francisco and Oakland. A section of the Bay Bridge collapsed. The epicenter of …showed first 75 words of 784 total…

…showed last 75 words of 784 total…has served to validate the approach used to develop the probability estimates. Since the event has occurred, it can be used to calibrate the measurements and procedures used to make such probability estimates elsewhere. Several other segments of faults in California have similar probabilities for producing earthquakes of similar size over the next several decades. ------------------------------------------------------------------------ **Bibliography** http://205.147.23.131/eqpapers/00000079.html “Loma Prieta Earthquake, October 17, 1989” http://www.eqe.com/publications/lomaprie/seismici.html “Seismicity and Geology