Commemorating the 30th anniversary of the 1980 eruptions of
Mount St. Helens 1—During the past 4,000 years, Mount St. Helens
has erupted more frequently than any other volcano in the
Cascade Range. 2—Most of Mount St. Helens is younger than 3,000
years old (younger than the pyramids of Egypt). 3—Some Native
American names that refer to smoke at the volcano include—
Lawala Clough, Low-We- Lat-Klah, Low-We-Not- Thlat, Loowit, Loo-
wit, Loo-wit Lat-kla, and Louwala-Clough. 4—3,600 years
ago—Native Americans abandoned hunting grounds devastated by an
enormous eruption four times larger than the May 18, 1980
eruption. 5—1792—Captain George Vancouver named the volcano for
Britain’s ambassador to Spain, Alleyne Fitzherbert, also known
as Baron St. Helens. 6—1975—U.S. Geological Survey geologists
forecasted that Mount St. Helens would erupt again, “possibly
before the end of the century.” 7—March 20, 1980—A magnitude 4.2
earthquake signaled the reawakening of the volcano after 123
years. 8—Spring 1980—Rising magma pus