|Start:||December 1929 ||Observed|
|Fumarolic or hydrothermal activity: ||
|Eruption Type:||Not an eruption.|
Jaggar (1932) reported that "volcanoes of the Katmai group continued fuming" in 1929, and Coats (1950) reported Katmai active in December, 1929. However, Hildreth (1983) states: "Published compilations notwithstanding, there are no credible reports of historic eruptions in the Katmai group except at Novarupta in 1912 and at Trident in 1953 - 1968."