San Ramon earthquake with magnitude of 3.1

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3.1-magnitude quake strikes San Ramon

3.1-magnitude quake strikes San Ramon.

An earthquake with a magnitude of 3.1 struck near San Ramon early Tuesday morning, according to the US Geological Survey.

The quake struck at 5:55 a.m.

On Dec. 8, nine small to moderate earthquakes shook San Ramon, the largest one clocking in with a magnitude of 3.6, according to the US Geological Survey.

EarthquakesSan Ramon