2025-05-01T03:38:07.0000Z54.541-163.51216711.03manualconfirmedIRIS1.88Ml1Origin/20250501180023.063521.117870Magnitude/20250501180023.063573.117871IRISUNIMAK ISLAND REGION, ALASKAregion nameNEIC PDEcatalogav93592451contributorID