4.3-magnitude earthquake rattles San Ramon Valley


A 4.3-magnitude earthquake shook the Tri-Valley on Tuesday afternoon.

The temblor struck at 1:11 p.m., centered 7.5 miles east of Blackhawk, according to the U.S. Geological Survey. A 3.5-magnitude aftershock was reported 13 minutes later in the same area, according to the USGS.

No reports of significant injuries or damage have occurred.

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