Mount St. Helens and Mount St. Helens (English: Mount St.Helens) is a ภูเขาไฟมีพลัง cone type alternating layers. Located in this county, Washington, United States eroticism in the Northwest Pacific region. Far from the city to the South 154 kilometers, Seattle80 kilometers, Mount St. Helens name from the British diplomat, Lord St Helens, partner of explorers George Vancouver survey area in the area since the end of the Christian century, 18 volcano mountain is located in the Cascade MountainsPart of the ring of fire. The ภูเขาไฟมีพลัง located over 160. The volcano mountain is well known from the explosion and spraying ash out
.Mount St. Helens the most famous from the violent explosion on 18 May 1975. 1980 (the 2523) when 8:32 local time (Pacific time zone). The volcano disaster that has killed most. And cause economic damage, the most in the history of the United States. The death of that time.The houses 250 after 47 bridge of long rail 15 miles (kilometers) long and 24 highway 185 miles (kilometres) 298 is destroyed, the explosion caused huge landslides Reduce the height of the mountains, from 9677 feet (meters), 2 950 left, 8 365 feet (meters), 2 550 crater and transform become like a horseshoe. The land falls down volume more than 0.7 cubic miles (2.9 cubic kilometers). After that, it has founded the national monuments, Mount St. Helens, to protect, conserve the volcano. A scientific study and volcanic
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