2025-12-10T23:58:56.98Z37.7506675720215-121.9323348999021.16999995708466manualconfirmedUSGS1.82md1Origin/20251211000135.837649.195616Magnitude/20251211000135.8377.195617USGS5 km SE of San Ramon, CAregion namenccatalognc75278051contributorID