2025-09-07T05:36:58.66Z37.3453333333333-121.7426666666674.22manualconfirmedUSGS0.97md1Origin/20250908223711.637877.497465Magnitude/20250908223711.637932.497466USGS8 km ESE of Alum Rock, CAregion namenccatalognc75234337contributorID