QQuestionEarth Science
QuestionEarth Science
How much of Mount St. Helens was blown off during the 1980 eruption?
A. 4,000 meters
B. 400 meters
C. 40 meters
12 months agoReport content
Answer
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Step 1:I'll solve this problem step by step:
Step 2:: Understand the Context
The 1980 eruption of Mount St. Helens was one of the most significant volcanic events in United States history. The eruption dramatically changed the mountain's height and shape through a massive lateral blast and subsequent collapse.
Step 3:: Research the Geological Change
During the eruption on May 18, 1980, the north face of the mountain was completely blown away, and the summit was significantly reduced in height.
Step 4:: Determine the Elevation Change
- After the eruption, the mountain's height was reduced to $$2,549 \text{ meters}
- Before the eruption, Mount St.
Step 5:: Calculate the Height Reduction
2,950 \text{ meters} - 2,549 \text{ meters} = 401 \text{ meters}
Step 6:: Evaluate the Answer Choices
Looking at the given options: A. 4,000 meters - Too high B. 400 meters - Extremely close to our calculated reduction C. 40 meters - Too low
Final Answer
Helens during the 1980 eruption. The eruption removed approximately 401 \text{ meters} from the mountain's height, which rounds to 400 meters, making option B the most accurate answer.
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