2020-12-04T07:45:37.0000Z51.858333-177.8241673.49manualconfirmedIRIS0.71Ml1Origin/20201204233747.301155.2509118Magnitude/20201204233747.301208.2509119IRISANDREANOF ISLANDS, ALEUTIAN IS.region nameNEIC PDEcatalogav91013773contributorID