2026-08-17T22:13:10.05Z40.334999084473-124.8571701049814.670000076294manualconfirmedUSGS3.17ml1Origin/20260817221552.140124.414901Magnitude/20260817221552.140184.414902USGS49 km W of Petrolia, CAregion namenccatalognc75420282contributorID