2026-03-02T07:32:16.64Z37.7606658935547-121.9283370971683.36999988555908manualconfirmedUSGS1.49md1Origin/20260302073421.710575.103981Magnitude/20260302073421.710637.103982USGS5 km ESE of San Ramon, CAregion namenccatalognc75321172contributorID