2025-12-29T18:34:08.04Z37.7523345947266-121.9346694946297.46999979019165manualconfirmedUSGS1.78md1Origin/20251229183643.498669.82577Magnitude/20251229183643.49872.82578USGS5 km SE of San Ramon, CAregion namenccatalognc75288201contributorID