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bogoslof

Max Kaufman/AVO/UAF-GI

Bogoslof Volcano erupted Tuesday night for the first time in two months.

The eastern Aleutian volcano blew around 10:30 p.m., spewing ash 34,000 feet into the air.

The explosion lasted about 73 minutes, according to the Alaska Volcano Observatory.

While seismic activity has since stopped, scientists say Bogoslof could erupt again with little warning. They’ve also issued a marine advisory for potential ash fall in the region between Cape Sarichef and Nikolski.

T. Keith, U.S. Geological Survey

Several small earthquakes shook the area around Bogoslof Volcano on Saturday, prompting scientists to raise its alert level to an intermediate “watch.”

Bogoslof hasn’t erupted in over a month, but officials with the Alaska Volcano Observatory say seismic activity over the weekend has increased the likelihood of another explosion.

Before going quiet last month, the eastern Aleutian volcano had erupted 37 times since mid-December.

Dave Schneider/USGS/AVO

Bogoslof Volcano is back at a low-level “advisory” for the first time since it began erupting more than three months ago.

The Alaska Volcano Observatory (AVO) downgraded Bogoslof’s alert level Wednesday, bringing it just one notch above “normal.”

AVO Geophysicist Dave Schneider said it has been weeks since the Aleutian volcano showed any sign of life.

T. Keith, U.S. Geological Survey

Bogoslof Volcano blew again Monday morning, marking its thirty-seventh explosion since the volcano roared back to life three months ago.

The short blast began around 3:30 a.m. and lasted just 12 minutes.

While the eruption produced an ash cloud, the Alaska Volcano Observatory has not predicted ash fall for Unalaska.

Scientists say this explosion appears to be over, and the AVO has left Bogoslof’s alert level at an intermediate “watch.” 

Janet Schaefer/ADGGS/AVO

The Alaska Volcano Observatory (AVO) has lowered the alert levels for two Aleutian volcanoes.

Bogoslof is back at the intermediate "watch" level, following a powerful eruption Tuesday night.

The volcano hasn’t produced ash since that three-hour blast and its seismicity has died off, but scientists say Bogoslof could blow again with little warning.

Meanwhile, Cleveland Volcano -- 45 miles west of Nikolski -- has been quiet since a small eruption last month.

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