2020-12-08T08:41:49.0000Z40.757999-123.33750218.47manualconfirmedIRIS2.23Md1Origin/20201208084428.86647.2727187Magnitude/20201208084428.866521.2727188IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73495120contributorID