2026-09-12T18:39:21.81Z38.821166992188-122.7645034791.0900000333786manualconfirmedUSGS2.9md1Origin/20260912184153.514904.56245Magnitude/20260912184153.514964.56246USGS4 km W of Cobb, CAregion namenccatalognc75434347contributorID