2026-02-01T10:36:01.68Z37.7630004882812-121.9311676025395.98000001907349manualconfirmedUSGS1.37md1Origin/20260201103804.403677.26651Magnitude/20260201103804.403726.26652USGS5 km ESE of San Ramon, CAregion namenccatalognc75305066contributorID