2025-12-08T13:36:11.18Z37.7533340454102-121.9403305053718.079999923706049manualconfirmedUSGS2.07md1Origin/20251208133802.66223.171110Magnitude/20251208133802.662281.171111USGS4 km SE of San Ramon, CAregion namenccatalognc75276556contributorID