2021-02-18T10:09:18.89Z51.86083333-177.80657.34manualconfirmedUSGS0.64ml1Origin/20210218203114.10549.3543180Magnitude/20210218203114.105517.3543181USGS80 km W of Adak, Alaskaregion nameavcatalogav91193001contributorID