2026-08-15T02:11:10.5Z37.754833221435-122.142669677734.7399997711182manualconfirmedUSGS1.39md1Origin/20260815021346.70056.377125Magnitude/20260815021346.700626.377126USGS4 km NNE of San Leandro, CAregion namenccatalognc75418512contributorID