2025-07-04T19:54:11.0000Z54.728833-163.4106677.43manualconfirmedIRIS1.21Ml1Origin/20250705023324.06031.333221Magnitude/20250705023324.060365.333222IRISUNIMAK ISLAND REGION, ALASKAregion nameNEIC PDEcatalogav93657556contributorID