Earthquakes off Mexico shake San Diego
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Pastor Dale Morgan
May 26, 2010, 4:03:51 AM5/26/10
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Great Earthquakes In Diverse Places
Earthquakes off Mexico shake San Diego
Tuesday, May 25, 2010 at 10:37 p.m.
Numerous quakes occurred five minutes apart Tuesday night beneath the sea floor.
A magnitude 4.3 earthquake occurred beneath the seafloor off Rosarito Beach Tuesday night, producing shaking that was briefly and lightly felt in the more populated areas of San Diego County, the U.S. Geological Survey. The quake began 44 miles southwest of San Diego at 8:57 p.m. and came five minutes after a 3.6 quake snapped beneath the sea floor roughly four miles off Coronado. That quake also was felt on land. It's unclear whether the first event influenced the second.
The larger quake happened between two well known faults, the San Clemente and the San Diego Trough. But the 4.3 shaker started south of both systems, so it is also unclear whether those systems were responsible for the shaking.
The smaller quake began 12.5 miles deep, near the entrance to San Diego Bay, at a spot that's immediately south of the Point Loma fault system.
It's possible that both quakes are aftershocks of the 7.2 Easter Sunday quake that shook all of Southern California.
Earthquakes off Mexico shake San Diego
Tuesday, May 25, 2010 at 10:37 p.m.
Numerous quakes occurred five minutes apart Tuesday night beneath the sea floor.
A magnitude 4.3 earthquake occurred beneath the seafloor off Rosarito Beach Tuesday night, producing shaking that was briefly and lightly felt in the more populated areas of San Diego County, the U.S. Geological Survey. The quake began 44 miles southwest of San Diego at 8:57 p.m. and came five minutes after a 3.6 quake snapped beneath the sea floor roughly four miles off Coronado. That quake also was felt on land. It's unclear whether the first event influenced the second.
The larger quake happened between two well known faults, the San Clemente and the San Diego Trough. But the 4.3 shaker started south of both systems, so it is also unclear whether those systems were responsible for the shaking.
The smaller quake began 12.5 miles deep, near the entrance to San Diego Bay, at a spot that's immediately south of the Point Loma fault system.
It's possible that both quakes are aftershocks of the 7.2 Easter Sunday quake that shook all of Southern California.
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