2025-04-28T13:33:21.283Z56.4731-158.588488.8manualconfirmedUSGS2.6ml1Origin/20250428133700.11352.93044Magnitude/20250428133700.113573.93045USGS18 km N of Chignik Lagoon, Alaskaregion nameakcatalogak0255fdcpeocontributorID