2026-08-22T14:40:11.14Z40.274833679199-124.5158309936520.420000076294manualconfirmedUSGS1.73md1Origin/20260822144159.995354.465580Magnitude/20260822144159.995416.465581USGS20 km WSW of Petrolia, CAregion namenccatalognc75422977contributorID