March 27, 1980, a series of volcanic explosions and pyroclastic flows began at Mount St. Helens in Skamania County, Washington, United States. A series of phreatic...

volcano is part of the Cascade Volcanic Arc, a segment of the Pacific Ring of Fire. The Mount St. Helens major eruption of May 18, 1980, remains the deadliest...

above the rim of the crater created by the 1980 eruption of Mount St. Helens. On September 23, 2004, around 2:00 a.m. PDT, Mount St. Helens experienced...

– May 18, 1980) was an American United States Geological Survey (USGS) volcanologist who was killed by the 1980 eruption of Mount St. Helens in the U.S...

The Eruption of Mount St. Helens! is a 1980 American short documentary film directed by George Casey. It was nominated for an Academy Award for Best Documentary...

Mount St. Helens, Mount Pelée, and Mount Etna. Most eruptions are caused by the immediate decompression of a magma chamber near the flanks of the volcano...

1921 and a major eruption of Mount St. Helens in 1980. It is also the site of Canada's most recent major eruption, in 410BCE at the Mount Meager massif....

explosive eruption is a volcanic eruption of the most violent type. A notable example is the 1980 eruption of Mount St. Helens. Such eruptions result when...

1896 – May 18, 1980) was an American businessman, bootlegger, and prospector. He lived near Mount St. Helens, an active volcano in the state of Washington...

volcanic eruption of the 20th century, Novarupta released 30 times the volume of magma of the 1980 eruption of Mount St. Helens. The 1912 eruption that formed...

volcanologist. He researched Mount St. Helens in the United States before and after its 1980 eruption, and was very distraught about the death of volcanologist David...

cataclysmic 1980 eruption of Mount St. Helens in Washington, with the story beginning on the day volcanic activity started on March 20, 1980, and ending...

May 18, 1980) was an American photographer killed in the 1980 volcanic eruption of Mount St. Helens. A photojournalist covering the eruption for a local...

(November 13, 1931 – May 18, 1980) was an American photographer who died while photographing the 1980 eruption of Mount St. Helens. He was born in Seattle...

States, located north of Mount St. Helens. It was a popular tourist destination for many years until Mount St. Helens erupted in 1980. Previously there had...

Tarawera in New Zealand. The 1980 eruption of Mount St. Helens in Washington in the western United States. The 1982 eruption of El Chichón in Chiapanecan...

Mount Tambora is a volcano on the island of Sumbawa in present-day Indonesia, then part of the Dutch East Indies, and its 1815 eruption was the most powerful...

CaSO4. In a sequential leaching experiment on ash from the 1980 eruption of Mount St. Helens, chloride salts were found to be the most readily soluble...

in the 1980 eruption of Mount St. Helens. The landslide left a large depression in the side of the volcano, known as 'Valle del Bove' (Valley of the Ox)...

of 536 List of largest volcanic eruptions List of Quaternary volcanic eruptions Timeline of volcanism on Earth Similar in scale to Mount St. Helens in...

eruptions by human death toll. Lists of disasters List of volcanic eruption deaths List of natural disasters by death toll List of volcanic eruptions...

governor and was in office during the 1980 eruption of Mount St. Helens. She was a supporter of atomic energy. A graduate of Mills College and Stanford University...

Bigfoot folklore. Ape Canyon was heavily impacted by the 1980 eruption of Mount St. Helens. Adjacent to the steep rocky canyon is the present Ape Canyon...

border of Cowlitz County and Skamania County, Washington in the United States. The lake was created during the 1980 eruption of Mount St. Helens, which...

and volcanic bombs. At Mount St. Helens in Washington state, hundreds of steam explosions preceded the 1980 Plinian eruption of the volcano. A less intense...

in honor of David A. Johnston, a young scientist who had precisely predicted the volatility of the May 18, 1980, Mount St. Helens eruption and perished...

worst-case scenario for an eruption is a large pyroclastic flow, similar to that which occurred in the 1980 eruption of Mount St. Helens. Since there is ice...

The 1991 eruption of Mount Pinatubo in the Philippines' Luzon Volcanic Arc was the second-largest volcanic eruption of the 20th century, behind only the...

was overtaken by volcanic mudflows (lahars) during the May 1980 eruption of Mount St. Helens. When the smelt spawn in the Cowlitz River, the gulls go into...

Mount St. Helens National Volcanic Monument is a U.S. National Monument that includes the area around Mount St. Helens in Cowlitz and Skamania Counties...