2025-03-18T17:53:47.57Z38.826000213623-122.7958297729490.93manualconfirmedUSGS1.1md1Origin/20250318175606.004443.153959Magnitude/20250318175606.004496.153960USGS6 km WNW of Cobb, CAregion namenccatalognc75151147contributorID