2026-08-31T08:20:50.08Z38.833999633789-122.806663513182.329999923706manualconfirmedUSGS1.01md1Origin/20260831082257.767604.43723Magnitude/20260831082257.767665.43724USGS7 km W of Cobb, CAregion namenccatalognc75427567contributorID