2025-10-27T15:58:11.0000Z54.756-163.9953330.18manualconfirmedIRIS0.43Ml1Origin/20251027212542.868459.106024Magnitude/20251027212542.868518.106025IRISUNIMAK ISLAND REGION, ALASKAregion nameNEIC PDEcatalogav93849896contributorID