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There are seven major tectonic plates on the planet that are further subdivided into dozens of smaller plates. Geologists do not always agree on how to subdivide the minor plates. Each plate is in motion relative to the ... More »

www.reference.com Science Earth Science Plate Tectonics

The plate tectonics theory suggests that the outer shell of the Earth's surface is split into a few plates that move along the mantle, forming a hard shell, with pressure from mid-ocean ridges and subduction zones causin... More »

www.reference.com Science Earth Science Plate Tectonics

If plate tectonics stopped, the continents would stay in place rather than moving slowly around the face of the earth. This would also result in a reduction in volcanic activity and earthquakes. Lower volcanic activity c... More »

www.reference.com Science Earth Science Plate Tectonics
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The Earth's tectonic plates move because of the way lava moves inside the planet. The center of the Earth is a ball of molten metal. Outside of that molten metal is a layer of lava that moves the plates as it heats and c... More »

www.reference.com Science Earth Science Plate Tectonics

Tectonic plates move horizontally past one another at transform boundaries in either strike-slip or aseismic motions. Earthquakes and tsunamis occur when the pressure locking plates in a strike-slip boundary releases sud... More »

www.reference.com Science Earth Science Plate Tectonics

The plate tectonics theory suggests that the outer shell of the Earth's surface is split into a few plates that move along the mantle, forming a hard shell, with pressure from mid-ocean ridges and subduction zones causin... More »

www.reference.com Science Earth Science Plate Tectonics

According to the Theory of Plate Tectonics, the Earth has seven major or primary plates: the North American, South American, African, Antarctic, Indo-Australian, Eurasian and Pacific. There are also several secondary pla... More »

www.reference.com Science Earth Science Plate Tectonics