2026-03-02T08:33:21.71Z37.7654991149902-121.934165954597.71999979019165manualconfirmedUSGS2.76md1Origin/20260302083558.924872.104293Magnitude/20260302083558.924931.104294USGS4 km ESE of San Ramon, CAregion namenccatalognc75321212contributorID