2026-08-20T12:07:45.21Z38.80899810791-122.751663208010.66000002622604manualconfirmedUSGS1.05md1Origin/20260820120939.595008.449520Magnitude/20260820120939.595077.449521USGS3 km WSW of Cobb, CAregion namenccatalognc75421742contributorID