This is for my 5th grade class in Centerville, Ohio. I have three questions.
1. Will Mt. St. Helens ever erupt again?
2. How much destruction can a volcano do?
3. Will one of Hawaii's volcanoes erupt again?
Michael Frasca
Greetings to Mr. Frasca's Fifth Grade Class!
- Yes,
Mt. St. Helens
will erupt many more times in the next hundred
thousand years or so before it dies. What we can not predict is when.
During the last century St. Helens erupted about 9 times, but only one
eruption sequence of a few years this century. We don't know what it will
do in the next hundred years, but I expect at least a few eruptions.
- The damage done by an erupting volcano depends pretty much on how close
the volcano is to a nearby town. In 1985 the Ruiz eruption in Colombia
destroyed the town of Armero and its 25,000 citizens. A major eruption of
Mt. Hood or
Mt. Rainier
will greatly threaten Portland, Oregon and
Seattle, Washington.
-
Kilauea
volcano in Hawaii has been erupting continuously since 1983.
Mauna Loa
erupted in 1984 and will certainly erupt again in the next
decade or so.
Hope these answers help you understand that volcanoes live a long time,
and that eruptions are natural activities.
Chuck Wood, University of North Dakota