2026-06-18T17:03:54.27Z38.841499328613-122.825500488281.8300000429153manualconfirmedUSGS1.2md1Origin/20260618170555.297945.13555Magnitude/20260618170555.298007.13556USGS9 km WNW of Cobb, CAregion namenccatalognc75379146contributorID