2021-09-17T19:43:04.56Z52.1053-174.6355209.2manualconfirmedUSGS2.3ml1Origin/20210917232057.429159.842371Magnitude/20210917232057.429211.842372USGS31 km WSW of Atka, Alaskaregion nameakcatalogak021bybapdvcontributorID