Key Information
Mount St Helens
| Type | Stratovolcano |
| Status | Active |
| Height | 8,363 ft |
| Last Major Eruption | 1980 |
| Other Names | Lawetlat’la, Loowit, Louwala-Clough |
Learning Point
- Mount St Helens is an active volcano, famous for its eruption in 1980 which changed the shape and structure of the mountain, killing 57 people.
- An almost perfectly formed volcano, it had a very clean cone shape, which was only changed as a result of the eruption.
Project
- Draw Mt St Helens erupting.
- Overview
- Before the Eruption
Location
| Located in | Washington State, United States |
Fun Facts
- The eruption of the volcano on May 18, 1980 was the deadliest and most economically destructive volvanic eruption in the United States history.
- 200 homes, 47 bridges, 15 miles of railways, and 185 miles of highway were destroyed.
- An earthquake, along with the eruption, reduced the mountain from 9,677 ft to 8,363 ft, and left a mile long crater.
- David A. Johnston was a volcanologist who was killed in the eruption. He was working on the nearby Coldwater Ridge. He was 30 years old.
Past Lessons
| 30 | July 25, 2022 | (North America) |
| 125 | August 12, 2024 | (North America) |
| 203 | June 23, 2026 | (North America) |