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The eruption of Mount Saint Helens in 1980 dramatically transformed the landscape in several ways. First, it caused a significant decrease in elevation, with the mountain's summit collapsing and creating a large crater. Second, the eruption devastated surrounding forests, flattening trees over a wide area and altering ecosystems. Lastly, the volcanic ash and debris reshaped river valleys and created new landforms, such as lahars and pyroclastic flows, which changed the hydrology and geography of the region.

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1w ago

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Related Questions

How was the earths surface changed from mount saint helens eruption?

its smelt fishy


How big was the last eruption of Mount Fuji compared to the eruption of Mount Saint Helens?

about as 50% chance that mount saint helens' eruption is way bigger than mount fuji


What type of eruption does mount saint helens have?

a pyroclastic flow


Was the 1980 mount saint helens eruption gentle?

yes. it was


Why was Mount Saint Helens eruption so famous?

use it


How was the eruption of Mount Saint Helens?

It was cause by the pressure in side the volcano


How likely would it be to see an eruption from mount saint helens?

Very Unlikely


Is there agriculture or economic activity in Mount Saint Helens related to the eruption?

yes


How many victims were there in the 1980 eruption of Mount Saint Helens?

57 people died in the May 17, 1980 eruption.


How many people were killed mount st Helens?

57 people were killed by the volcanic eruption in Saint Helens in May 1980.


How was Mount Saint Helen eruption different from other eruptions?

The eruption of Mount Saint Helens was different from other explosive eruptions in that the initial blast was to the side, rather than straight up.


How did mount st helens effect humans?

The eruption of Mount St. Helens on May 18, 1980, had a significant impact on humans, including causing 57 direct fatalities and extensive damage to infrastructure, forests, and wildlife. The ashfall from the eruption also affected air quality, agriculture, and transportation in the surrounding areas. Additionally, the eruption led to changes in land use policies and increased monitoring of volcanic activity to enhance public safety.