2026-08-19T16:08:54.63Z38.837833404541-122.808998107911.8200000524521manualconfirmedUSGS1.65md1Origin/20260819161101.904965.437404Magnitude/20260819161101.905025.437405USGS8 km WNW of Cobb, CAregion namenccatalognc75421267contributorID