News

A massive volcano can erupt IMMEDIATELY after a 7.2 magnitude earthquake

Amassive 7.2 magnitude earthquake has increased the risk of a volcano in Alaska erupting imminently as the aviation level was raised to red.

The Shishaldin Volcano has been spewing great plumes of ash into the air since July 11, according to the Alaska Volcano Observatory (AVO).

A US Coast Guard overflight confirmed lava erupted the same day within the summit crater.

The latest data from the AVO, as of just before midnight on July 15, showed frequent explosion signals are being detected, with some explosions sending plumes of ash as high as 20,000 ft above sea level.

It said: “Due to the duration of this current activity and the extent of the distributing ash cloud the Aviation Colour Code is being raised to RED and the Volcano Alert Level is being raised to WARNING.”

Alaska

The volcano alert level code is set at warning, which means “Volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, OR eruption is underway but poses limited hazards.”

It comes as a significant explosion at 1:09 a.m. Friday produced an ash cloud that reached up to 40,000 feet (12,192 meters) and drifted south over the Pacific Ocean.

A second smaller explosion at 7:10 a.m. Friday reached about 15,000 feet (4,572 meters).

Alaska Volcano Observatory

The National Weather Service issued a inflight weather advisory due to the drifting ash cloud.

Volcanic ash is angular and sharp and has been used as an industrial abrasive. The powdered rock can cause a jet engine to shut down.

The volcano is 679 miles (1,093 kilometers) southwest of Anchorage near the center of Unimak Island, the largest island in the Aleutians. False Pass, a village of 40 people, is on the island’s east side.

The volcano is a symmetrical cone that is 10 miles (16 kilometers) in diameter at its base. It rises to 9,373 feet (2,857 meters) and is the highest peak in the Aleutians.

Shishaldin is one of the most active volcanoes in the Aleutian volcanic arc. Most eruptions are small. An event in 1999 spewed an ash column that reached 45,000 feet (13,716 meters).

The volcano is monitored with seismic and infrasound sensors, satellite data, a web camera and distant infrasound and lightning networks.

Alaska Volcano

Source

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button