2026-02-28T00:25:47.976Z61.373-145.3726.6manualconfirmedUSGS2.4ml1Origin/20260228002759.570446.82805Magnitude/20260228002759.570519.82806USGS33 km SSW of Tonsina, Alaskaregion nameakcatalogaka2026ecmzhccontributorID