As we all know, the earth is an ellipsoid with an average radius of about 6,370 kilometers. Its internal structure can be divided into three parts: the crust, the mantle, and the core. The surface of the earth is a hard crust, about 32-45 kilometers thick, the bottom of the mantle below it is about 2,900 kilometers away from the surface, and the core radius of the earth's core is about 3470 kilometers. The thickness of the crust is uneven, the thinnest part of the ocean bottom crust is only a dozen kilometers thick, and the Qinghai-Tibet Plateau on the plateau is up to 60-80 kilometers thick.
    According to research by geologists, the crustal thickness in Wudalianchi area is about 34.5 kilometers, which is a thin area; the original magma erupted by volcanoes can reach 80-91 kilometers deep, and the temperature is 1006 degrees Celsius-1118 degrees Celsius, located in the upper part of the mantle. Its own separation and crystallization during the ascent process changed the composition and characteristics of the original magma, so a special potassium-rich alkaline lava was formed when it was ejected from the surface. There are many faults in the Wudalianchi area, especially where the rock is broken at the intersection of the faults, which can become magma ascending channels. When the deep magma accumulates to a certain amount and pressure, it gushes up along the channel, spews out or overflows the surface, that is, a volcanic eruption occurs.