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Results for “Earthquake Information Bulletin (USGS)”
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The 1979 Imperial Valley. California, earthquake
On October 15, 1979, the largest earthquake in California in the last quarter century occurred on the imperial fault near the international boundary between the United States and Mexico. The earthquake measured 6.6 on the Richter scale and was felt from Las Vegas, Nevada, to northern Mexico. Surface movement on four fault zones accompanied the earthquake and caused approximately $30 million in damage.
Southern California's last great earthquake and clues about the next one
This year marked the 125th anniversary of the great Fort Tejon, California, earthquake of January 9. 1857. By digging large trench along the segment of the San Andreas fault that broke near Pallett Creek and by studying contemporary records, Kerry Sieh of the California Institute of Technology has found evidence that the fault needs, on average, at least 125 years to prepare for its next catastrophic failure. Te remainder of this wait, of course, could be anywhere this century or the next.
Cooperative seismology studies between the U.S. and the People's Republic of China
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