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Post on 05-Dec-2014
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Volcanoes and earthquakes
At the Earth's surface, earthquakes manifest themselves by shaking and
sometimes displacement of the ground. When the
epicenter of a large earthquake is located offshore, the seabed may be displaced sufficiently to cause a tsunami. Earthquakes can also trigger landslides, and occasionally volcanic activity.
Volcanoes and earthquakes
Volcanoes and earthquakes
When thick magma and large amounts of gas build up under the surface, eruptions can be explosive, expelling lava, rocks and ash into the air. Less gas and more viscous magma usually mean a less dramatic eruption, often causing streams of lava to ooze from the vent.
Volcanoes and earthquakes
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