2025-04-16T04:00:25.77Z37.365665435791-121.7333297729493.98000001907349manualconfirmedUSGS1.25md1Origin/20250416040224.59606.175285Magnitude/20250416040224.596114.175286USGS8 km ESE of Alum Rock, CAregion namenccatalognc75166066contributorID