2026-08-17T13:09:33.67Z38.823165893555-122.765502929692.1600000858307manualconfirmedUSGS1.12md1Origin/20260817131148.911725.409817Magnitude/20260817131148.911785.409818USGS4 km W of Cobb, CAregion namenccatalognc75420017contributorID