2026-08-12T03:21:48.47Z37.94983291626-122.0651702880912.239999771118manualconfirmedUSGS1.9md1Origin/20260812032348.351421.352388Magnitude/20260812032348.351483.352389USGS0 km WNW of Pleasant Hill, CAregion namenccatalognc75416497contributorID