2020-12-20T14:14:39.0000Z40.655-121.8246.5manualconfirmedIRIS0.96Md1Origin/20201220163151.549953.27805Magnitude/20201220163151.55001.27806IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73500755contributorID