CompuServe Messages

#Largest Volcano?

    15-Dec-94 09:05:28
Sb: #158154-#Largest Volcano?
Fm: RICHARD I GIBSON 71005,2116
To: Scott Hartlieb 74632,320
Hi Scott, I'm not a volcanologist either and some of this info goes beyond your 10,000-year area of interest but here goes: Mt St Helens, 1-2 cubic km Katmai, Alaska 1912, 7 cu km Krakatoa, 18 cu km Mazama, 75 cu km Tamboro, 150 cu km Yellowstone National Park : Mesa Falls Tuff (1.2 million yrs) 280 cu km; Lava Creek tuff (600,000 yrs) 1000 cu km; Huckleberry Ridge Tuff (2.2 million yrs) 2500 cu km. Info is from the Indiana University Geology Field Camp guidebook, citing Smith & Braile (1982)– Crustal structure and evolution of an explosive silicic volcanic system at Yellowstons, 1982 Wyoming Geological Association Guidebook. Hope this is useful. Cheers, Dick Gibson