More recent ash and smoke plumes pushing from Mt. St. Helen
's have built a lava dome inside the crater.
But in 2007 federal budget cuts coupled with diminishing visitation led the Forest Service to close one of its two primary visitor centers at Mt. St. Helens
and scale back on its interpretive and management services.
On May 18th, 1980 Mt. St. Helens
in Washington State exploded.
Mount Lassen, a gorgeous peak located south of Mt. St. Helens
in the Cascades, shows signs of imminent eruption.
Following the last Mt. St. Helens
event, a C-130 inadvertently penetrated an ash plume 2 and a half hours after the second major eruption.
Meanwhile, the Mt. St. Helens
herd, the state's second largest, is down to 12,500 animals from 15,000 in the mid-1990s, and the South Mt.
50, "Mt. St. Helens
" (1982); and a short early work, "Storm on Mount Wildcat" (1931).
Don Hunter, UO libraries emeritus, presents a pair of multimedia presentations: "The Pageant Years," a historical look at Eugene's pageants from 1926-1950, and "Mt. St. Helens
and the Volcanic Cascades," a look at the Pacific Northwest's volcanic region.
When the glacial ice on Mt. St. Helens
rushed down the sides of the mountain and created mudflows, potential energy in the ice became active and major changes took place.
Sonia Buist of Oregon Health Sciences University in Portland, Ore., has spent years studying the impact that the 2980 eruption of the Mt. St. Helens
volcano had on the lungs of loggers who carried out seasonal clean-up operations on the mountain for half a decade after the eruption.
The scholarly among us can visit Powell's City of Books, purported by its owners to be the largest bookstore in North America, The spectacular Columbia Gorge is just a few minutes' drive east of the city, and the still-active Mt. St. Helens
is a day excursion to the north.
Pinatubo is considered second in size only to an eruption in Katmai, Alaska, in 1912, and considered 10 times more powerful than the 1980 eruption of Mt. St. Helens
, records show.