VANCOUVER, Wash. (KPTV/Gray News) - Mount St. Helens, which notoriously erupted in 1980, has been showing signs of increased seismic activity lately, according to the U.S. Geological Survey. It’s ...
However, there have been other periods on similar seismic activity that did not lead to eruptions, namely in 1988-1992, 1995-1996 and 1997-1999. So more earthquakes does not guarantee an eruption, the ...
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