2026-06-20T08:39:42.52Z52.218176.36919.3manualconfirmedUSGS3.5ml1Origin/20260620181421.581845.31876Magnitude/20260620181421.581902.31877USGS227 km ESE of Attu Station, Alaskaregion nameakcatalogaka2026mcrbgxcontributorID