Volcanic Fury: Witness the Power of Earth's Fiery Forces

When the pressure is sufficient, the magma is forced to the surface through volcanic vents, fissures, or other openings. This is what we commonly refer to as a volcanic eruption. Once the magma reaches the surface, it is called lava. Lava can flow out of the volcanic vent and move downhill, guided by the topography of the landscape. The viscosity of the lava (how easily it flows) depends on its composition, temperature, and gas content.