2026-02-18T22:13:16.4Z38.4533348083496-122.8328323364266.76999998092651manualconfirmedUSGS1.43md1Origin/20260218221841.501413.61638Magnitude/20260218221841.501484.61639USGS4 km ENE of Graton, CAregion namenccatalognc75315647contributorID