2026-09-28T06:48:47.12Z38.8313331604-122.816497802731.6799999475479manualconfirmedUSGS1md1Origin/20260928065055.943269.36839Magnitude/20260928065055.94333.36840USGS8 km NW of The Geysers, CAregion namenccatalognc75443687contributorID