From Smithsonian Institution, online database, accessed December 8, 2003: "The almost completely ice-covered Kukak volcano lies west of Hallo Bay near the NE end of a glacier-mantled range extending from Mount Katmai. Kukak volcano contains a vigorous fumarole field at the southern base of the hydrothermally altered northern summit and is the only one of the Denison-Steller-Kukak chain of volcanoes to display geothermal activity. Two reports of historical eruptions at Kukak from Hantke (1959)
[1] appear to be erroneous. The report of a 1951 eruption is an apparent reference to a July 22, 1951 ashfall at Kukak Bay, which was attributed by Muller and others (1954)
[2] to Martin volcano. A 1953 explosive "eruption" was single large puff of steam followed by steaming from caverns in Hook Glacier
[2]."