2026-08-01T19:59:40.02Z40.214168548584-124.1419982910214.420000076294manualconfirmedUSGS1.8md1Origin/20260801200131.943814.268433Magnitude/20260801200131.943876.268434USGS17 km SE of Petrolia, CAregion namenccatalognc75409797contributorID