How far did the ash from Mount St. Helens travel?
The May 18, 1980 eruptive column at Mount St. Helens fluctuated in height through the day, but the eruption subsided by late afternoon. By early May 19, the eruption had stopped. By that time, the ash cloud had spread to the central United States.
Two days later, even though the ash cloud had become more diffuse, fine ash was detected by systems used to monitor air pollution in several cities of the northeastern United States. Some of the ash drifted around the globe within about 2 weeks.
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Mount St. Helens erupts again: Activity from September 2004 through March 2005
Eruptive activity at Mount St. Helens captured the world’s attention in 1980 when the largest historical landslide on Earth and a powerful explosion reshaped the volcano, created its distinctive crater, and dramatically modified the surrounding landscape. Over the next 6 years, episodic extrusions of lava built a large dome in the crater. From 1987 to 2004, Mount St. Helens returned to a period of
Authors
Jon J. Major, William E. Scott, Carolyn Driedger, Dan Dzurisin
Eruptions of Mount St. Helens : past, present, and future
No abstract available.
Authors
Robert I. Tilling, Lyn J. Topinka, Donald A. Swanson
Mount St. Helens - From the 1980 eruption to 2000
Mount St. Helens, Washington, is the most active volcano in the Cascade Range. Its most recent series of eruptions began in 1980 when a large landslide and powerful explosive eruption created a large crater, and ended 6 years later after more than a dozen extrusions of lava built a dome in the crater. Larger, longer lasting eruptions have occurred in the volcano's past and are likely to occur in t
Authors
Steve Brantley, Bobbie Myers
Volcanic-hazard zonation for Mount St. Helens, Washington, 1995
No abstract available.
Authors
E.W. Wolfe, T. C. Pierson
Road guide to volcanic deposits of Mount St. Helens and vicinity, Washington
Mount St. Helens, the most recently active and most intensively studied Cascades volcano, is in southwestern Washington. The volcano is a superb outdoor laboratory for studying volcanic processes, deposits of observed events, and deposits whose origins are inferred by classic geologic techniques, including analogy to recent deposits. During the past 4,500 years, Mount St. Helens has been more acti
Authors
Michael P. Doukas
The 1980 eruptions of Mount St. Helens, Washington
No abstract available.
Authors
Peter W. Lipman, Donal Ray Mullineaux
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Filter Total Items: 18
Mount St. Helens erupts again: Activity from September 2004 through March 2005
Eruptive activity at Mount St. Helens captured the world’s attention in 1980 when the largest historical landslide on Earth and a powerful explosion reshaped the volcano, created its distinctive crater, and dramatically modified the surrounding landscape. Over the next 6 years, episodic extrusions of lava built a large dome in the crater. From 1987 to 2004, Mount St. Helens returned to a period ofAuthorsJon J. Major, William E. Scott, Carolyn Driedger, Dan DzurisinEruptions of Mount St. Helens : past, present, and future
No abstract available.AuthorsRobert I. Tilling, Lyn J. Topinka, Donald A. SwansonMount St. Helens - From the 1980 eruption to 2000
Mount St. Helens, Washington, is the most active volcano in the Cascade Range. Its most recent series of eruptions began in 1980 when a large landslide and powerful explosive eruption created a large crater, and ended 6 years later after more than a dozen extrusions of lava built a dome in the crater. Larger, longer lasting eruptions have occurred in the volcano's past and are likely to occur in tAuthorsSteve Brantley, Bobbie MyersVolcanic-hazard zonation for Mount St. Helens, Washington, 1995
No abstract available.AuthorsE.W. Wolfe, T. C. PiersonRoad guide to volcanic deposits of Mount St. Helens and vicinity, Washington
Mount St. Helens, the most recently active and most intensively studied Cascades volcano, is in southwestern Washington. The volcano is a superb outdoor laboratory for studying volcanic processes, deposits of observed events, and deposits whose origins are inferred by classic geologic techniques, including analogy to recent deposits. During the past 4,500 years, Mount St. Helens has been more actiAuthorsMichael P. DoukasThe 1980 eruptions of Mount St. Helens, Washington
No abstract available.AuthorsPeter W. Lipman, Donal Ray Mullineaux - News