Asked by Breanna Clayton on Apr 26, 2024
Verified
The eruption that occurred on Mount St. Helens was triggered by:
A) A huge landslide caused a lateral blast that knocked down trees and buildings.
B) A fast-moving viscous lava flow flowed through the middle of Portland.
C) A volcano that was so heavy that it caused part of the island to collapse.
D) A scoria cone that sent up a large column of pyroclastic material.
E) None of these.
Lateral Blast
A volcanic eruption characterized by the powerful, horizontal expulsion of ash, gas, and volcanic debris, often occurring with little to no warning.
Mount St. Helens
An active stratovolcano located in Washington State, USA, famous for its catastrophic eruption on May 18, 1980.
- Identify the distinct characteristics of various eruption types through their geological traces and impacts.
- Determine the various kinds of dangers volcanic eruptions pose to buildings created by humans.
Verified Answer
OK
Olivia KennedyApr 27, 2024
Final Answer :
A
Explanation :
The eruption of Mount St. Helens on May 18, 1980, was initiated by a massive landslide, which in turn triggered a powerful lateral blast. This blast caused widespread destruction, flattening trees and buildings over an extensive area.
Learning Objectives
- Identify the distinct characteristics of various eruption types through their geological traces and impacts.
- Determine the various kinds of dangers volcanic eruptions pose to buildings created by humans.
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