PASADENA : More Than 25,000 Quakes Reported in 2 Months
There have been more than 25,000 earthquakes in Southern California in the two months since the magnitude 7.5 Landers and 6.6 Big Bear temblors of June 28, according to a report Thursday by Caltech and the U.S. Geological Survey.
Most quakes were too weak to feel, but more than a dozen were above magnitude 5.0, about 100 were above 4.0 and close to 1,000 were above 3.0, a Caltech aide said.
The report said the aftershock sequence is expected to continue for at least several more months. In the last week there were 20 earthquakes above magnitude 2.5 near Yucca Valley, 20 above 2.5 near Barstow, and 13 above 2.5 near Big Bear Lake. These have been the primary areas of aftershocks. The strongest temblor in the last week was magnitude 4.1 near Big Bear.
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