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Recording the Earth's Seismic Activity

In general, the map that contained all the earthquake distributions mostly had shallow quakes spread around. Deep quakes on the map were a lot less common. I would estimate that about 85%-90% of the earthquakes were shallow quakes. There were only three earthquakes on the map that had a magnitude of 7.0 or greater. The earthquakes that appeared to have occurred along spreading zones made up about 80% of the earthquakes on the map. Earthquakes that have occurred in these areas generally have ocean ridges. The other areas where earthquakes happen are on subduction zones where there usually are ocean trenches and oceanic mountain ranges. About 13% of the earthquakes on the map occurred along subduction zones. Out of all of the earthquakes on the map, I would say that about twenty of the quakes do not appear to be associated with any active plate boundary. The most powerful earthquakes that were plotted on the map occurred along......

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Approximate Pages: 2 (250 words per double-spaced page)

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