2025-07-20T21:37:50.403Z51.4673-176.709541.612manualconfirmedUSGS3.8mb1Origin/20250721051833.956942.476843Magnitude/20250721051833.956993.476844USGS45 km S of Adak, Alaskaregion nameuscatalogus7000qe5econtributorID