2026-06-29T13:11:07.39Z40.294666290283-124.496002197278.0299997329712manualconfirmedUSGS2.87md1Origin/20260629131329.265479.40823Magnitude/20260629131329.265538.40824USGS18 km W of Petrolia, CAregion namenccatalognc75386331contributorID