2025-08-21T15:37:10.0000Z54.72-164.0211678.91manualconfirmedIRIS0.06Ml1Origin/20250821190918.437094.321725Magnitude/20250821190918.437147.321726IRISUNIMAK ISLAND REGION, ALASKAregion nameNEIC PDEcatalogav93726668contributorID