2026-02-08T14:16:17.38Z37.7641677856445-121.9335021972662.5699999332428manualconfirmedUSGS1.69md1Origin/20260208141829.567794.92615Magnitude/20260208141829.567857.92616USGS4 km ESE of San Ramon, CAregion namenccatalognc75310632contributorID