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Scientists raise alert level for Alaska volcano after explosion detected

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Scientists raised the alert level for a remote Aleutian volcano on Monday after an explosion was detected on the mountain and heard by residents of a tiny village some 45 miles (72 km) away, a monitoring website said.

Cleveland Volcano, a 5,676-foot (1,730-metre) peak on the uninhabited Chuginadak Island, about 940 miles (1,504 km) southwest of Anchorage, was raised to orange from yellow by the Alaska Volcano Observatory.

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The orange code, the second-highest on the scale, is issued when a volcano is “exhibiting heightened or escalating unrest with increased potential of eruption,” according to the observatory. A red code is issued when an eruption is imminent or under way.

The observatory said that an explosion was detected on Cleveland by both infrasound and seismic data and heard by residents of Nikolski, a settlement of less than 50 people on Umnak Island about 45 miles (72 km) to the east.

Infrasound instruments measure air pressure around the volcano.

Scientists said that cloudy weather obscured Cleveland’s peak in satellite images but that no evidence of an eruption cloud had been detected at a height of 28,000 feet (8,534.4 meters).

Previous explosions have spewed ash emissions, according to the observatory.

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The volcano, named after U.S. President Grover Cleveland, is one of the most active of Alaska’s scores of volcanoes and its ash cloud could pose a threat to aircraft when it erupts.

It forms the western portion of Chuginadak Island and has been intermittently producing small lava flows and explosions since 2001, the observatory said.

Chuginadak Island is part of Alaska’s Aleutian archipelago, a geologically active chain of volcanic islands that is part of the Pacific Ring of Fire and is very prone to earthquakes.

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Earlier this year Mount Pavlof on the Alaska Peninsula erupted with little advanced warning, spewing an ash cloud up to 20,000 feet (6,096 meters) high that prompted aviation warnings across the region.

Pavlof is currently at yellow on the alert scale, meaning that it is “exhibiting signs of elevated unrest” but not erupting, according to the observatory.

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The Alaska Volcano Observatory is a joint program of the U.S. Geological Survey, the Geophysical Institute of the University of Alaska Fairbanks and the State of Alaska Division of Geological and Geophysical Surveys.

(Reporting by Dan Whitcomb in Los Angeles; Editing by Sandra Maler)


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Trump’s India visit expected to boost exposure of his struggling properties in the country: report

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On Saturday morning "The View" co-host Meghan McCain snapped back at some of her online critics who complained about her observations and demeanor on the popular ABC show -- which was not received very well as one might expect.

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2020 Election

At Joe Biden’s eleventh-hour rally in Nevada, many union members remain uncommitted

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On the eve of the Nevada caucuses, former Vice President Joe Biden, who has referred to himself as "middle-class Joe," had a last-minute chance to connect with middle-class Nevada voters before Saturday's caucuses. At a barbecue with burgers, hot dogs, and ice cream sandwiches, attendees that included firefighters and iron workers gathered for what was advertised as a precinct captain training — or to simply hear Biden's pitch. Indeed, many attendees of the barbecue were still undecided a mere day before caucusing.

This article first appeared in Salon.

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