Patterns of World Seismicity :
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  Ninety percent of all earthquakes occur along plate margins and by far the greater amount of energy released as seismic waves comes from subduction zones.

Earthquake locations for events between 1965 and 1995. The red dots are shallow earthquakes, the green are intermediate depth, and the blue and purple are deep.

The map above shows the distribution of earthquakes with magnitudes greater than 5.0 that occurred between 1965 and 1995.

Earthquakes deeper than 500 km are restricted to only a few regions surrounding the Pacific and part of the Indian oceans. Shallow earthquakes are located over much of Earth, but are most common in narrow belts.

The deepest earthquakes are located on the rim of the Pacific Ocean (those regions also have shallow earthquakes, but on this map their symbols are hidden beneath the deep events).