1992 Big Bear earthquake
|Date||June 28, 1992|
|Depth||3.1 miles (5.0 km)|
|Areas affected||United States (Southern California)|
|Max. intensity||VIII (Severe)|
The 1992 Big Bear earthquake occurred at 08:05 PDT on June 28 in Big Bear Lake, California, with a Richter magnitude of 6.5, and a maximum perceived intensity of VIII (Severe) on the Mercalli intensity scale. The earthquake occurred at a relatively shallow depth of 5 kilometers (3.1 mi) and caused landslides in the San Bernardino Mountains.
This earthquake occurred three hours after the 7.3 magnitude Landers earthquake, which was centered 22 miles (35 km) to the east. The closely timed occurrence of these earthquakes is an often-cited example of a regional earthquake sequence. Both earthquakes had occurred significantly close to the southern portion of the San Andreas Fault, and the Landers event may have reduced the compressional stress in that area.
- LaMacchia, Diane (July 17, 1992). "Yucca Valley earthquake surprised experts". Lawrence Berkeley National Laboratory. Archived from the original on October 12, 2007. Retrieved November 4, 2007.
- "Big Bear Earthquake". Southern California Earthquake Center. Retrieved May 23, 2012.
- Tom Parsons; Douglas S. Dreger (2000). "Static-stress impact of the 1992 Landers earthquake sequence on nucleation and slip at the site of the 1999 M=7.1 Hector Mine earthquake, southern California". Geophysical Research Letters. Retrieved September 4, 2011.
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