4.7 Earthquake Recorded in Sea Near San Diego
A sharp earthquake measuring 4.7 on the Richter scale shook San Diego at 6:38 p.m. Tuesday, but no significant damage was reported by police or disaster authorities in the San Diego area or in Tijuana.
The quake was centered in the ocean off Imperial Beach near the Mexican border, reported seismologists at Caltech. A seismological specialist at Scripps Institution of Oceanography at the University of California, San Diego, said the epicenter appeared to be on the southward extension of the Rose Canyon fault.
Tuesday’s quake continued a pattern of increasing seismic activity in San Diego County in the past two years.
On July 13, a 5.3 magnitude quake southwest of Oceanside, the largest ever recorded in San Diego County, caused about $500,000 damage. Several aftershocks have been in the 4.0 range.
Scientists have been cautious in discussing whether the quakes are related or if they will lead to larger temblors.
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