2025-08-11T20:12:26.25Z37.5928344726562-121.9836654663095.98000001907349manualconfirmedUSGS1.59md1Origin/20250811201433.739882.212828Magnitude/20250811201433.739936.212829USGS3 km ESE of Union City, CAregion namenccatalognc75221957contributorID