ACTIVE VOLVANOES

TYPES

• There are three main types of volcano - composite or strato, shield and dome. Composite volcanoes, sometimes known as strato volcanoes, are steep sided cones formed from layers of ash and lava flows. The eruptions from these volcanoes may be a pyroclastic flow rather than a flow of lava.

WHAT HAPPENS DURING AN ERUPTION

• When magma reaches earth's surface it is called lava. It may pour out in gentle streams called lava flows or erupt violently into the air. Rocks ripped loose from the inside of the volcano or torn apart by the gas may be shot into the air with the lava. These rocks blown out of a volcano are called pyroclastic rocks.

How do volcanic island occur?
Volcanoes can also form in the middle of a plate, where magma rises upward until it erupts on the sea floor, at what is called a “hot spot.” The Hawaiian Islands were formed by such a hot spot occurring in the middle of the Pacific Plate.

Largest active volcanoes.

Nevado Ojos del Salado

SAN JOSÉ VOLCANO

MOUNT FUJI

MOUNT KILIMANJARO

FAMOUS VOLCANOES

MOUNT VESUVIUS

MOUNT ETNA