No blowup signs at Mt. St. Helens
From Times Staff and Wire Reports
Despite ongoing volcanic activity for the last two years, there is no indication Mt. St. Helens is on the verge of a repeat performance of its 1980 eruption, scientists reported Thursday.
Scientists led by Richard Iverson of the U.S. Geological Survey wrote in the journal Nature that quakes appeared to result from the movement of a huge plug of igneous rock being shoved out of the volcano at the rate of about 10 to 20 feet a day.
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