Sharply increased seismic activity and volcanic eruptions in the Aleutian Islands: the most activity seen in 26 years

Aleutian Islands

MINING

Sharply increased seismic activity and volcanic eruptions in the Aleutian Islands and the far western Brooks Range are being investigated by scientists.

The Alaska Volcano Observatory says the activity over the past few months is the most seen by the station 26 years.

On the Alaska Volcano Observatory three volcanoes are classified with a yellow alert level—signifying signs of elevated unrest above known background levels—and three are at an orange alert level—heightened unrest with increased likelihood of eruption. Orange is the second-highest alert level after red signifying an eruption that is imminent or underway.

Volcano Pavlof photographed by the ISS on May 18, 2013. Credit: NASA.

Pavlof Volcano released an ash plum in May that diverted aircraft. The 8,262-foot (2,518-meter) tall volcano erupted sending ash plumes as high as 30,000 feet (9,144 meters). Aircraft were advised to avoid the area since ash could damage airplane engines.

With heightened activity from all volcanoes, scientists still don't have enough information to point to any larger trend or activity.

The government agency posted news updates on its Facebook page.