Griggs 1965
Start: 1965 [1]
Event Type: Not an eruption
- Fumarolic or hydrothermal activity [1]
Description: Ward and Matumoto (1967) report seeing a "very active fumarole high on the west flank" of Mt. Griggs during 1965. This activity does not constitute a volcanic eruption.
References Cited
[1] A summary of volcanic and seismic activity in Katmai National Monument, Alaska, 1967
Ward, P. L., and Matumoto, T., 1967, A summary of volcanic and seismic activity in Katmai National Monument, Alaska: Bulletin Volcanologique, v. 31, p.107-129.Complete Eruption References
Mount Griggs: A compositionally distinctive Quaternary stratovolcano behind the main volcanic line in Katmai National Park, 2002
Hildreth, Wes, Fierstein, Judy, Lanphere, M. A., and Siems, D. F., 2002, Mount Griggs: A compositionally distinctive Quaternary stratovolcano behind the main volcanic line in Katmai National Park: in Wilson, F. H. and Galloway, J. P., (eds.), Studies by the U.S. Geological Survey in Alaska, 2000, U.S. Geological Survey Professional Paper PP 1662, p. 87-112.
full-text PDF 3.2 MB 
Preliminary volcano-hazard assessment for the Katmai volcanic cluster, Alaska, 2001
Fierstein, Judy, and Hildreth, Wes, 2001, Preliminary volcano-hazard assessment for the Katmai volcanic cluster, Alaska: U.S. Geological Survey Open-File Report 00-0489, 50 p., 1 plate, scale not applicable.
full-text PDF 28.8 MB 
A summary of volcanic and seismic activity in Katmai National Monument, Alaska, 1967
Ward, P. L., and Matumoto, T., 1967, A summary of volcanic and seismic activity in Katmai National Monument, Alaska: Bulletin Volcanologique, v. 31, p.107-129.
Hard Copy held by AVO at FBKS - CEC file cabinet