Tag archives for Eruptions
30th Anniversary of Mount St. Helens Eruption
Posted by On May 18, 1980, the Mount St. Helens volcano in Washington State erupted. The eruption (which was heard hundreds of miles away) blew off the top of the mountain, destroyed miles of forest, and killed 57 people.
In the 30 years since the eruption, scientists have been able to study how an ecosystem recovers from a volcanic eruption. What was once a desolate, gray blast zone in 1980 is now home to many plants and animals. Although it has not had an eruption of the same size since 1980, Mount St. Helens is one of the most active volcanoes in the United States and could erupt again.
Read more about the potential danger from Mount St. Helens on National Geographic News.
See a gallery of images of Mount St. Helens on National Geographic.
Think you know volcanoes? Quiz Your Noodle and prove it!
(AD) Read more about volcanoes in the National Geographic book Witness to Disaster: Volcanoes.
Photograph by Peter Lipman, USGS and Gene Iwatsubo, USGS
Alaska’s Mount Redoubt erupted six times between Sunday night and Saturday morning, sending an ash cloud 9.5 miles (15 kilometers) into the air! The eruptions also caused small earthquakes and mudflows. The volcano could keep erupting for days… weeks… or even months!
Mount Redoubt wasn’t the only recent volcano eruption. An undersea volcano in Tonga also erupted last week. Tonga is an archipelago (group of islands) in the Pacific Ocean. The eruption has sent up ash, smoke, and steam. Underwater volcanoes can build islands as the magma builds up–that’s how the Hawaiian Islands were formed.
Read more about the Mount Redoubt eruptions and see pictures on National Geographic News.
Read about the Tonga eruption on National Geographic News.
See photos of volcanoes in the Photo Gallery!
