2025-09-15T13:45:55.0000Z54.759167-163.9655-0.71manualconfirmedIRIS0.51Ml1Origin/20250915192937.427505.558808Magnitude/20250915192937.427557.558809IRISUNIMAK ISLAND REGION, ALASKAregion nameNEIC PDEcatalogav93770013contributorID