The center of a volcano is called the ‘vent.’ This is the opening through which volcanic materials, including lava, ash, and gases, are expelled during an eruption.
The vent can be found at the summit of the volcano, where it is often surrounded by a crater. However, there can also be secondary vents along the sides of the volcano. When a volcano erupts, the vent allows magma from below the Earth’s crust to travel to the surface. Understanding the structure of a volcano, including its vent, is crucial for monitoring volcanic activity and predicting eruptions.