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The earth we live on consists of the ocean, and the continents. Below the ocean and continents we have the earth’s crust, which can very in length for miles. Under the earth’s crust we encounter small breaks in the earth, which is caused by the slow movement of mantle. With this movement we find the plates of the continent breaking apart and causing earthquakes (Nicholls, Bill 2). The earth’s mantle roughly extends about 1,798 …

…When data is stored about seismic zones we find only four types of zones exist, according to plate tectonics. The first occurs under the ocean along the narrow ridges beneath the sea. The second type of zone affected by earthquakes, is from volcanoes when they erupt lava. The third type is associated with collision of oceanic, and continental plates. The final seismic zone is measured from the boundaries of continental plates alongside mountains (Spall, Henry 3).