2025-11-21T03:06:28.65Z37.7589988708496-121.93066406256.30999994277954manualconfirmedUSGS1.56md1Origin/20251121030818.521864.23900Magnitude/20251121030818.521917.23901USGS5 km ESE of San Ramon, CAregion namenccatalognc75266886contributorID