2021-03-17T18:00:36.615Z51.8539-174.408671.68manualconfirmedUSGS4.7mb1Origin/20210317195005.06608.5961402Magnitude/20210317195005.066132.5961403USGS40 km SSW of Atka, Alaskaregion nameuscatalogus7000dkbqcontributorID