4.0 Aftershock Strikes Near Yucaipa
A magnitude 4.0 earthquake, one of more than 67,000 aftershocks of the 1992 Landers-Big Bear quakes, struck Friday morning near the San Andreas fault four miles northeast of Yucaipa, Caltech scientists said.
No damage or injuries were reported in the 9:04 a.m. temblor, which was followed by several smaller jolts.
Egill Hauksson, a Caltech seismologist, said Friday’s quake was located in the same place as an active cluster of aftershocks that followed the main 7.3 Landers shock of June 28, 1992.
There have been about 200 Landers-Big Bear aftershocks of 4.0 or stronger, and they are expected to continue, at a diminishing rate, for several more years.
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