2026-05-04T07:16:50.097Z55.806-158.2649.8manualconfirmedUSGS2.3ml1Origin/20260504214520.565892.81219Magnitude/20260504214520.56595.81220USGS55 km S of Chignik, Alaskaregion nameakcatalogaka2026ittgtycontributorID