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Second Alaskan Volcano Spews Ash May 24, 2013
Pavlof volcano eruption
Volcanic debris can be seen cascading down Pavlof's slopes during a May 17 blast.
Alaska’s Pavlof volcano produced the most explosive blast in its current eruptive phase, sending ash soaring 15,000 feet into the air.

The Alaska Volcano Observatory (AVO) said clouds of ash, steam and vapor occasionally reached 22,000 feet.

Lava from the eruption, coming in contact with Pavlof’s snowcap, created huge cloud of steam that soared high above the mountain, located about 625 miles southwest of Anchorage.

The observatory said the ash wasn’t rising high enough to threaten the key trans-Pacific air routes between North America and Asia.

But residents of Cold Bay, about 40 miles from Pavlof, said they were worried falling ash could damage the community’s power generators.

The AVO estimates it has erupted about two dozen times between 1901 and 2007.

During a 29-day eruption in 2007, Pavlof emitted mud flows and lava, as well as sending ash clouds up to 18,000 feet high.

Alaska’s Cleveland volcano has also been spewing lava since early May during a low-level eruption.

Photo: Alaska Volcano Observatory