2026-02-03T15:58:48.16Z37.757999420166-121.9511642456054.69999980926514manualconfirmedUSGS1.34md1Origin/20260203160136.918004.46647Magnitude/20260203160136.918053.46648USGS3 km SE of San Ramon, CAregion namenccatalognc75306766contributorID