The first time recorded the mysterious volcanic thunder
Many thunder rumbling from the volcanic eruption was first recorded by geologists studying in the northern Pacific.
The noise came from the Bogoslof volcano in the Aleutian Islands, recorded by a microphone on the island of Umnak 40 miles away.
In the past, the sound of thunder in the volcano was hardly recognized because it was difficult to distinguish it from other explosions or the boisterous sound of boiling with each eruption.
Lightning on the crater - (Photo: Getty Images).
"Sometimes people who come near the volcanic eruption area can hear this before, but this is the first time we can distinguish this thunder and analyze them with computer data , " the team said. .
Bogoslof volcano erupted more than 60 times since December 2016 to August 2017, creating opportunities for scientists to record explosions from neighboring islands.
From mid-March to June 2017, geologists using microphones obtained special volcanic thunder sounds that transmitted to Umnak after 3 minutes since the light sensors caught lightning in Bogoslof.
Thunder is a beautiful phenomenon but also very dangerous in nature, can heat the ambient air to about 27,760 degrees Celsius, 5 times the surface temperature of the Sun.
Lightning not only occurs during thunderstorms but can also occur during storms, tornadoes, volcanic eruptions, even dust storms and snow storms.
Particularly volcanic lightning , also known as dirty storms, often occurs in large volcanic eruptions and strong intensity.
A study in Science magazine found that charge occurs when ash, rock fragments in volcanic dust clouds collide with each other, creating static electricity that can discharge electricity with charged clouds. or with the ground.
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