2021-10-06T05:21:50.0000Z53.4847-163.518310manualconfirmedIRIS4.3mb1Origin/20211006060201.730487.94821Magnitude/20211006060201.73053.94822IRISUNIMAK ISLAND REGION, ALASKAregion nameNEIC PDEcatalogak021cti1m1i,us6000fs7hcontributorID