2025-08-31T08:25:59.65Z40.3158340454102-124.8623352050780.07manualconfirmedUSGS2.77md1Origin/20250831082835.658712.417949Magnitude/20250831082835.658768.417950USGS49 km W of Petrolia, CAregion namenccatalognc75231127contributorID