San Ramon earthquake with magnitude of 3.1
SAN RAMON, Calif. - 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.