2025-08-16T05:44:09.03Z37.3581657409668-121.7149963378917.92000007629395manualconfirmedUSGS1.98md1Origin/20250816054601.095151.260536Magnitude/20250816054601.09521.260537USGS10 km ESE of Alum Rock, CAregion namenccatalognc75224442contributorID