Officials at the national park in Wyoming, US, said the Ledge Geyser burst into life on April 28, letting out huge amounts of steam out as it blew. The Ledge Geyser, which is the second larges in the Norris Geyser Basin, had not shown any activity for three years before its eruption. Ledge Geyser is capable of shooting water up to 125 feet in the air, but scientists believe it has slipped back into its dormant state since the eruption.
The National Park Service said: “Because it erupts at an angle, however, the water will sometimes reach the ground 220 feet away.
“It has at times in the past erupted at regular intervals of 14 hours. The geyser became inactive between 1979 and late 1993.”
An eyewitness describing the eruption on GeySer times.
They said: “Observed in Steam phase. Main (Red) vent in heavy roaring steam that was heard from parking lot. Having to yell to talk to each other.”
Geysers like those at Yellowstone erupt whenever water and steam get trapped in a tight spot deep below the geyser’s blowhole.
The mix of water and steam builds in pressure until it finds its way to the surface where a tall stream of scorching hot water blasts hundreds of feet in the sky.
Experts will continue to analyse the geysers to see if they indicate any sort of impending eruption for Yellowstone.
If the Wyoming volcano were to erupt an estimated 87,000 people would be killed immediately and two-thirds of the USA would immediately be made uninhabitable.
The large spew of ash into the atmosphere would block out sunlight and directly affect life beneath it creating a “nuclear winter”.
The massive eruption could be a staggering 6,000 times as powerful as the one from Washington’s Mount St Helens in 1980 which killed 57 people and deposited ash in 11 different states and five Canadian provinces.
If the volcano explodes, a climate shift would ensue as the volcano would spew massive amounts of sulphur dioxide into the atmosphere, which can form a sulphur aerosol that reflects and absorbs sunlight.