Q:

How many types of volcanoes are there?

A:

Quick Answer

According to the U.S. Geological Survey, geologists have identified four types of volcanoes. Cinder cones are the simplest type of volcano, followed by shield volcanoes, composite volcanoes and lava domes.

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Full Answer

Cinder cones, such as Mexicos' Paricutin, consist simply of loose tephra, or volcanic debris. They tend to be fairly small, up to 1000 feet in height and a mile across, with steep sides and a small crater. Shield volcanoes, such as the Hawaiian Islands and Iceland, are formed almost entirely of cooled lava flows and can be tens of thousands of feet high and miles across at the base. Composite volcanoes are a blend of both lava flows and tephra, and are generally similar in size to shield volcanoes. Examples of composite volcanoes include Vesuvius, Vulcano and Mount St. Helens. Lava domes are rounder in shape and form when lava erupts very slowly.

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Related Questions

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    What are the three types of volcanoes?

    A:

    The three types of volcanoes are shield, cinder cone and composite volcano. Volcanoes are created when heated, melted rock, magma rises to the surface of the Earth. The three types of volcanoes differ in the type of material that actually reaches the surface and the type of eruption that occurs.

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    What are three different types of volcanoes?

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    The three major types of volcanoes are the cinder cone, the shield volcano and the stratovolcano. Each type differs in shape, size, erupted materials and eruption type.

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    What types of volcanoes are on the Hawaiian Islands?

    A:

    The Hawaiian Islands contain two main types of volcanoes: shield volcanoes, which have formed the bulk of the islands, and cinder cones, which are smaller in size. Several volcanoes fall into the subclass of cinder cone volcanoes known as tuff cone volcanoes.

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    How many extinct volcanoes are there in the world?

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