Natural Disaster
Tsunami
An opening on Earth's surface that allows molten rock, called magma, to escape from inside the earth.
Earth's Crust
A sudden, violent shaking of the ground caused by movement of giant plates in the earth's crust.
Earth's Plates
The outermost layer of the planet.
Earthquake
Molten rock inside the earth.
Natural events that can cause great damage.
Mamga
A huge ocean wave caused by a disturbance in the ocean floor. Usually caused by an underwater earthquake.
Seismograph
An instrument used to record data about earthquakes.
Large, moving slabs of rock that make up the planets outer layer.
Volcano