2026-09-13T11:09:52.08Z40.338665008545-124.9278335571317.620000839233manualconfirmedUSGS2.2md1Origin/20260913111151.330666.60717Magnitude/20260913111151.330727.60718USGS55 km W of Petrolia, CAregion namenccatalognc75434817contributorID