[ad_1]
Studies of volcanoes around the world have shown that supervolcans do not stop after an explosion in a super-eruption. A supervolcan system like the Yellowstone volcano would likely continue to spew volcanic material centuries after it erupted in the United States. According to a study published by Oregon State University (OSU), super-eruptions are among the most devastating disasters known to man. The supervolcans are known to choke the sky and affect the global climate for decades after their eruption.
For this reason, OSU researchers have studied the alleged links between recent volcanic explosions and ancient eruptions.
Scientists have discovered a link between the eruption of Mount Sinabung in Indonesia and an eruption of the Toba Caldera dating back 74,000 years ago.
Adonara Mucek, the senior author of the study at OSU, said, "Restoration of a supervolcanic eruption is a long process, as the volcano and the magmatic system are trying to reestablish the &,,,,,,,,,,,,,,. balance – in the manner of a disturbed water plan be dropped into it.
"In Toba, it appears that eruptions have continued for at least 15,000 to 20,000 years after the super-eruption and that structural adjustment has continued at least until there is a few centuries – and probably continues today.
READ MORE: Yellowstone volcano: the eruption map shows that NULLE PART is immune to the volcanic explosion
"It's the magmatic equivalent of seismic aftershocks after an earthquake."
The last time Toba raised his ugly head, the volcano released 28,000 times more magma than the 1980 eruption on Mount St Helens in the United States.
The resulting volcanic winter would have lasted for years and scientists assume that it impedes human evolution.
Worse still, the supervolcans like Yellowstone and Toba have an incredibly long lifespan – much longer than humanity on the planet.
READ MORE: The eruptions of the Yellowstone volcano are "more common than we thought"
Shanaka de Silva, a volcanologist from Oregon State University, said, "The supervolcans have a life span of several million years, during which several super-eruptions can occur. Between these eruptions, they do not die.
"Scientists have long suspected that eruptions continue after the initial eruption, but this is the first time we have been able to determine the exact age of these eruptions."
Toby, who would be at least 1.3 million years old, broke for the last time 74,000 years ago. The eruption was followed by at least six other explosions.
The Yellowstone volcano exploded for the last time 640,000, 1.2 million and 2 million years ago respectively.
READ MORE: Yellowstone volcano: RISING magma chamber is a likely trigger of eruption, warn scientists
Following the last eruption of the Yellowstone volcano, the United States Geological Survey (USGS) reported a period of eruption about 70,000 years ago.
And since the caldera explosion 640,000 years ago, there have been at least 80 "relatively unexploded" eruptions. "
In the case of the Toba Caldera, Dr. de Silva said the supervolcan "remains alive and active today."
He said: "The dangers of a supervolcan do not stop after the initial eruption.
"They cause eruptions, earthquakes, landslides, and tsunamis that may occur regularly for tens of thousands of years."
Source link
