The image illustrates the process of how a supervolcano occurs. The process is divided into four stages that begin with the creation of a magma chamber in the crust and culminates with land depression that creates a caldera in the volcano’s summit.
Initially, magma inside the mantle rises and melts the wall of rock above the magma zone and creates a small chamber where high-temperature magma accumulates . Because of the high pressure that the magma creates, the crust ruptures and forms a noticeable fissure in the surface.
After enough time, the high pressure from the magma’s heat causes wider ruptures, causing the lava and smoke to make their way to the surface; this phenomenon is called an eruption. The eruption causes the magma from the chamber to be left vacant, and its size is reduced. Finally, because of the emptying of the chamber, the overlying rocks become less supported and collapse, forming a large hole in the volcano’s summit called a caldera.