2025-01-13T08:49:07.99Z37.9690017700195-122.02416992187511.710000038147manualconfirmedUSGS1.77md1Origin/20250113085109.986209.321221Magnitude/20250113085109.986263.321222USGS1 km WNW of Concord, CAregion namenccatalognc75116516contributorID