2025-05-11T09:49:10.35Z40.228668212890597-124.4678344726563.9manualconfirmedUSGS1.76md1Origin/20250511095104.417344.189505Magnitude/20250511095104.417396.189506USGS19 km WSW of Petrolia, CAregion namenccatalognc75179731contributorID