Small quake rocks San Ramon Valley again

3.4-magnitude tremor hits at about 9:30 a.m.

Another minor earthquake struck the San Ramon Valley Wednesday morning, marking the fourth quake felt in the region during the last week.

The latest earthquake -- with a preliminary magnitude of 3.4 -- was centered about a mile northeast of San Ramon around 9:30 a.m., according to the U.S. Geological Survey. It had a depth of almost 7 miles, according to the USGS.

A 2.9-magnitude occurred outside San Ramon Tuesday afternoon and was felt by some in Danville. Two others shook San Ramon residents Nov. 8 and 9.


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