Volcanic eruptions are primarily driven by the heat generated within the Earth's mantle, which is the layer beneath the crust. This heat causes rocks to melt and form magma, which rises to the surface and erupts.

Plinian eruptions are the most violent type of volcanic eruption and are named after the Roman writer Pliny the Younger, who witnessed and described the eruption of Mount Vesuvius in 79 AD. These eruptions produce a towering column of ash and gas that can reach into the stratosphere.

Lava is the molten rock that flows out of a volcano during an eruption. It is composed of various minerals and gases and can range in temperature from 700 to 1200 degrees Celsius (1292 to 2192 degrees Fahrenheit).

Pelean eruptions are characterized by the formation of a lava dome, which is a mound of viscous lava that builds up around the vent of the volcano. These eruptions are named after the eruption of Mount Pelée in Martinique in 1902, which devastated the city of Saint-Pierre.

Tephra is a general term used to describe the fragments of rock, ash, and pumice that are ejected from a volcano during an eruption. Tephra can range in size from large boulders to fine ash particles.

Hawaiian eruptions are characterized by the production of large volumes of low-viscosity lava that flows easily. These eruptions are named after the volcanoes of Hawaii, which are known for their frequent and relatively gentle eruptions.

A submarine eruption is a volcanic eruption that occurs beneath the surface of the ocean. These eruptions can produce large volumes of ash and pumice, which can form new islands or seamounts.

Vulcanian eruptions are characterized by the sudden release of a large volume of gas and ash, forming a pyroclastic flow. These flows are fast-moving mixtures of hot gas, ash, and rock fragments that can travel at speeds of up to 700 kilometers per hour (435 miles per hour).

Lahars are mixtures of volcanic ash, mud, and debris that flow down the slopes of a volcano. They are often triggered by heavy rainfall or the melting of snow and ice on the volcano.

Strombolian eruptions are characterized by the formation of a cinder cone, which is a steep-sided hill built up from fragments of lava and ash. These eruptions are named after the volcano Stromboli in Italy, which is known for its frequent and relatively mild eruptions.

Volcanism is the process by which magma rises through the Earth's crust and erupts onto the surface. It is a complex process that involves the interaction of various geological factors, including plate tectonics, magma composition, and the structure of the crust.

Pelean eruptions are characterized by the production of large volumes of ash and pumice, forming a pyroclastic surge. These surges are fast-moving clouds of hot gas, ash, and rock fragments that can travel at speeds of up to 1000 kilometers per hour (621 miles per hour).

A fissure eruption is a volcanic eruption that occurs along a fissure or crack in the Earth's crust. These eruptions can produce large volumes of lava and ash, and can create new volcanic vents or lengthen existing ones.

Hawaiian eruptions are characterized by the formation of a lava plateau, which is a broad, gently sloping area of land built up from successive lava flows. These eruptions are named after the volcanoes of Hawaii, which are known for their frequent and relatively gentle eruptions.

Magmatism is the process by which magma cools and solidifies beneath the Earth's surface. It is a complex process that involves the interaction of various geological factors, including the composition of the magma, the temperature and pressure of the surrounding rocks, and the presence of water and other fluids.