2021-04-01T15:22:35.0000Z40.4454994-124.568496725.84manualconfirmedUSGS2.9md1Origin/20210401152431.564368.7240567Magnitude/20210401152431.564418.7240568USGS28km WNW of Petrolia, CAregion namenccatalognc73544755contributorID