2020-12-10T08:59:56.0000Z39.5235-122.9611678.37manualconfirmedIRIS1.72Md1Origin/20201210191755.249061.2822273Magnitude/20201210191755.249119.2822274IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73495975contributorID