2025-09-17T13:40:14.24Z40.3025016784668-124.03700256347730.8099994659424manualconfirmedUSGS1.91md1Origin/20250917134220.760188.575661Magnitude/20250917134220.76024.575662USGS21 km ESE of Petrolia, CAregion namenccatalognc75238767contributorID