2026-09-06T17:58:31.51Z39.400833129883-123.257164001476.6700000762939manualconfirmedUSGS1.83md1Origin/20260906180017.60164.12561Magnitude/20260906180017.601698.12562USGS9 km E of Willits, CAregion namenccatalognc75430772contributorID