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Alert raised for Cleveland Volcano in Aleutians after explosion

  • Author: Alaska News
  • Updated: September 28, 2016
  • Published May 6, 2016

The Cleveland Volcano in the Aleutian Islands is again under a heightened alert level from the Alaska Volcano Observatory, after researchers there recorded an explosion Thursday evening.

The observatory issued a statement raising the eastern Aleutians volcano's alert level to watch, and its aviation color code to orange, late Thursday.

Researchers said in the statement they detected an explosion at 6:44 p.m. Thursday using both air pressure and seismic data.

"There are no recent satellite views since the detected explosion. However, previous Cleveland explosions have typically produced ash emissions," observatory staff wrote.

Nearly a year ago, scientists recorded a restless period at the volcano on Chuginadak Island, including an explosion -- but no detected ash cloud -- in July.

In March, an eruption at Pavlof Volcano on the Alaska Peninsula sent an ash plume to an altitude of 20,000 feet, coating the nearby village of Nelson Lagoon and disrupting flights across Alaska as the material drifted northeast across Interior Alaska into Canada.

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