2026-09-04T13:12:28.41Z38.811000823975-122.7665023803720.040000915527manualconfirmedUSGS0.41md1Origin/20260904131508.027647.76868Magnitude/20260904131508.027708.76869USGS4 km NNW of The Geysers, CAregion namenccatalognc75429642contributorID