More about Volcanic Processes
More about the Debris Avalanche (landslide):
REPORT: Rockslide-Debris Avalanche of May 18, 1980, Mount St. Helens Volcano, Washington
Harry Glicken, 1996, U.S. Geological Survey Open-File Report 96-677
http://pubs.er.usgs.gov/publication/ofr96677
More about the events that Preceded the 1980 Eruption:
1980 Cataclysmic Eruption, Precursory Activity
http://volcanoes.usgs.gov/volcanoes/st_helens/st_helens_geo_hist_99.html
More about Lahars:
http://www.volcano.si.edu/learn_galleries.cfm?p=13
More about Pyroclastic flows:
http://www.volcano.si.edu/learn_galleries.cfm?p=9
More about Volcanic landslides:
http://www.volcano.si.edu/learn_galleries.cfm?p=14
More About Volcanic Ashfall:
