This is what sleeps under the volcanic Caldera of the Yellowstone supervolcano, on January 27 the United States Geological Survey published information about a study of what under Yellowstone is a sleeping supervolcano, these studies have provided information about the magma deposits that exist under the surface of the Yellowstone Caldera.
It is one of the largest volcanic systems in the world, the volcanic activity has had colossal events, the last eruption in the region took place about 70,000 years ago, researchers from Oregon State University and the University of Wisconsin Madison have worked on this study and have used a tool called magnetotelluric, which means that it uses the magnetism of the stones, which could be translated like this, the magnetism of rocks and stones.
The idea is that using that magnetism to obtain images of where and when the magma is stored, currently under the Yellowstone Caldera, that is the important thing, this is the most advanced magnetotelluric geophysical method that exists and what has been discovered is that there is a large amount of magma stored under Yellowstone.
But there is good news, it has been studied up to a depth of 47 km below the surface, and it turns out that, at a shallow depth, approximately 4 to 11 km, four different reserves of rhyolitic magma storage have been identified. Rhyolite is a composition with a high silica content that is what has fueled the explosive eruptions of the Yellowstone system during the last 2 million years. Not all magma is the same. In this case, it is what has allowed the explosion, the explosions that have occurred. in the last 2 million.
Of the years of the four identified reserves, three contain total volumes comparable to past small volcanic eruptions in Yellowstone, because not all have been tremendously catastrophic, there have also been smaller ones, but the volume of the fourth reservoir is similar to that of the Mesa Falls tuff which is the smallest of the three large caldera-forming eruptions of Yellowstone, that was approximately 1300000 years ago small well small.
The Mesa Falls tuff is small but it expelled 280 cubic km of volcanic material and the area affected by the volcanic ash is shown, how far they reached or how far they covered the volcanic eruption, in summary, four reserves have been discovered, three have a volume of we can say a normal volcanic eruption and the fourth has a volume of magma material from a supervolcano eruption, and a catastrophe that would affect a large part of the North American continent, the interesting thing is that according to this research this magma is located It's mostly in a solid state and probably not capable of erupting, even as a lava flow, so there's good news.
The bad news is that below, lower down apparently there is another type of magma that is hotter and in greater quantity and it is the one that ends up heating that "pressure cooker" of the rhyolitic magmas that are higher up, so to speak it is like the fire that heats the cooked magma that is in those reserves, at least from this research it seems that the super eruption that will occur sooner or later there will be one because it entered the past and will enter the future and there is no circumstance that tells us that it will not. is going to do it more.
It seems that it will be a long time from now, if not a very long time.
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