Wednesday marks 36th anniversary of Mount St. Helens eruption - KPTV - FOX 12

Wednesday marks 36th anniversary of Mount St. Helens eruption

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File Image of Mount St. Helens eruption in 1980 File Image of Mount St. Helens eruption in 1980
View of Mount St. Helens from Air 12, 36 years after the large eruption in 1980 View of Mount St. Helens from Air 12, 36 years after the large eruption in 1980
SKAMANIA COUNTY, WA (KPTV) -

Wednesday, May 18 marks the 36th anniversary of the massive eruption of Mount St, Helens in 1980.

It was on that day 36 years ago that a magnitude 5.1 earthquake struck underneath the active volcano, causing it to spew ash, mud, and stone across a 150 mile area of forest land.

The eruption had been predicted by experts, and many of people had been evacuated ahead of time.

Even with the early notice, 57 people were killed in the blast.  

Mount St. Helens is still considered active and seismic activity continues to this day.

Experts at the U.S. Geological Survey have been monitoring a recent swarm of small earthquakes underneath the volcano. However, the USGS said this is normal behavior and there is no cause for alarm. 

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