(ORDO NEWS) — Scientists from the University of Science and Technology of China studied the Weishan volcano, which is located in the northeast of the Wudalianchi volcanic field. It is interesting that there are as many as 14 volcanoes on the territory, which erupt sequentially.
Experts led by Ji Gao investigated an area of 500 sq. km. The last time it erupted was in 1776, and since then there has been a lull. The eruption of a whole complex of volcanoes always begins in the southwest and stretches to the northeast. Particular attention was paid to the Weishan volcano, which ejected lava about 50 thousand years ago.
Scientists are confident that there is now a calm before the storm. Using a 3D model, the experts found out that right now the upper and middle magma chambers under Weishan are being filled with magma. There is very little time left for the reservoir to overflow.
There are magma chambers under any volcano; they are a reservoir of porous rocks. The molten substance collects, and then, when there is a lot of it, presses against the walls of the chamber. The pressure rises, magma begins to leave the existing holes, moreover, with great pressure.
It is impossible to say exactly when the magma will rise and the eruption will begin. Experts can only estimate the volume of the molten substance in the tank. Predictions of a possible catastrophe are based on these data and the degree of “swelling” of the reservoir. Magma from the middle level can fuel the upper level, thereby “recharging” the giant.
At the moment, the level of filling the chambers is 15%. The eruption will happen when the rate rises to 40%. Seismic activity occurs regularly beneath Weishan, which indicates the movement of magma in the earth’s crust. Thus, there are first signs of an imminent disaster.
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