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Kamchatka volcano blows its top

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06.07.2007

Students learn from largest eruption in North Pacific

This photo captures strombolian activity and lava flows of Klyuchevskoy volcano on May 31, 2007. Credit: Photo by Yu Demyanchuk

Klyuchevskoy (pronounced Kloo-shef-skoy), a stratovolcano located in the north central region of the Kamchatka Peninsula, is blasting ash up to 32,000 feet in the air, and has diverted air traffic headed toward the Far East. This is the largest eruption to occur in the North Pacific in a decade, and is providing students at the University of Alaska Fairbanks a unique opportunity to collaborate with scientists, as well as state and federal agencies.

Tracking the Klyuchevskoy eruption locally are a handful students and faculty from the Geophysical Institute and the Alaska Volcano Observatory (GI/AVO) who process data used to reroute air traffic around dangerous volcanic ash clouds. Information is collected by satellite, Web cam, and Puff, a three-dimensional volcanic ash computer model. Once these data are synthesized, they are then shared at large to ensure the safety of thousands of people living in, or flying through the North Pacific.

Klyuchevskoy’s been erupting since January, but the largest explosions in the eruption began June 28, 2007. These explosions created a 1,360-mile-long band of ash, stretching from the Sea of Okhotsk to the Aleutian Islands, clogging well-used air routes with volcanic ash that prove deadly for aircraft.

“It’s best for us to keep an eye on Klyuchevskoy,” said Ken Dean, a professor of geology specializing in remote sensing with the Geophysical Institute and the Alaska Volcano Observatory. “Any ash that travels to Alaska is drifting right through the superhighway of air travel to the Far East. It’s critical for us to understand how distal plumes are moving.”

The eruption of one volcano will have far-reaching affects. Although Klyuchevskoy is located in Kamchatka, its ash crossed the Bering Sea and reached Unimak Island in the Aleutians within one day. Volcanic ash moves quickly through the atmosphere, so it’s important for scientists to have up-to-date information at their fingertips to generate a response plan.

Twice a day, the GI/AVO team goes through a rigorous process to examine the current condition of the more than 150 active volcanoes in the North Pacific. In addition, faculty is on call 24-hours a day to respond to large events like the recent explosions from Klyuchevskoy to guarantee information is shared and public safety is addressed.

Ken Dean | Source: EurekAlert!
Further information: www.avo.alaska.edu
puff.images.alaska.edu/index.shtml

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