2025-05-17T04:36:51.66Z40.269832611084-124.6623306274410.529999971389771manualconfirmedUSGS2.54md1Origin/20250517043931.411528.233739Magnitude/20250517043931.411578.233740USGS33 km W of Petrolia, CAregion namenccatalognc75183267contributorID