Earthquakes and Volcanoes. Earthquakes. Earthquakes are vibrations in the Earth’s crust. They are caused by plate movement along fault lines. A fault is a very deep crack or break in the Earth’s crust.
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Volcanoes result from a lot of pressure inside the Earth. Magma rises up out of the Earth and becomes lava. This can result in the formation of new land. An example of land created from a volcano is the Hawaiian islands.