2026-09-17T03:07:43.04Z37.335166931152-121.595169067386.3099999427795manualconfirmedUSGS2.62md1Origin/20260917031018.996047.84996Magnitude/20260917031018.996119.84997USGS21 km E of Alum Rock, CAregion namenccatalognc75437042contributorID