2025-08-10T09:30:00.31Z40.3081665039062-124.3991699218759.60999965667725manualconfirmedUSGS1.81md1Origin/20250810093227.751178.195752Magnitude/20250810093227.75123.195753USGS10 km W of Petrolia, CAregion namenccatalognc75221377contributorID