The Yellowstone had massive and enormous eruptions in the past. These eruptions were 1000 power than the 1980 eruption at Mount St. Helens.
The volcano could bury Wyoming, Montana, Idaho, and Colorado and spread a thin layer of ash across the Midwest.
The Yellowstone eruption could alter the Earth’s atmosphere. These eruptions are doing it for decades. Most importantly, It also affects the animal and plant life in North America.
Geologists have been studying these volcanic activities for a long time. In addition, This research helps them to create a roadmap for the future.
These eruptions have been slowing down,found in a recent study and published pape
A report formed through exhaustive chemical analysis, magnetic data, and isotopic dating of volcanic deposits These deposits formed thousand of kilometers away from the volcano. There were two super-eruptions, about 9.0 and 8.7 million years ago.
In the past, the belief was that these eruptions were part of previous eruptions that happened.
Lately, Researchers misidentified the findings. These volcanic eruptions have changed the historical picture of the Yellowstone. These supervolcanos can give scientists a clear trend back from 30 million old.
The 8.7 million-year-old volcanic eruption is considered the oldest eruption that happened till date, Moreover, It is one of the oldest and top 5 volcanic eruptions on Earth.
Declining Trend Yellowstone:
The two volcanic eruptions that happened 8-9 million years ago show a declining trend in a volcanic eruption around the world. Firstly, the period spans from 23 to 5.3 million years ago saw volcanic eruptions every 5 million years ago. Secondly, there only have been only two volcanic eruptions in the past three years. It means that these eruptions are spacing out and are getting smaller.
“It seems that the Yellowstone hotspot has experienced a three-fold decrease in its capacity to produce super-eruption events,” says Thomas Knott, lead author of the paper and volcanologist at the University of Leicester. In conclusion “This is a very significant decline.”
It is essential to understand the declining trend in volcanic eruptions, Moreover, the largest eruption at Yellowstone 8.7 million years ago is called the Grey’s Landing eruption.