2025-08-21T22:17:20.25Z38.8266677856445-122.788169860841.63manualconfirmedUSGS0.91md1Origin/20250821221921.046025.323641Magnitude/20250821221921.046076.323642USGS6 km WNW of Cobb, CAregion namenccatalognc75226882contributorID