2026-06-21T07:34:25.38Z40.398998260498-124.794166564947.5300002098083manualconfirmedUSGS2.38md1Origin/20260621073635.046536.36483Magnitude/20260621073635.046602.36484USGS44 km W of Petrolia, CAregion namenccatalognc75380606contributorID