In addition to these comprehensive theories of unemployment, there are a few categorizations of unemployment that are used to more precisely model the effects of unemployment within the economic system.
Best Answer: Earthquakes tend to occur on either side of the Pacific Ocean, including the Western coast of North and South America, as well as East Asian islands like Japan. This is because the crustal plates of these continents are moving and sliding over the plates that make up the Pacific Ocean floor. These areas are known as the Ring of Fire because they also contain many active volcanoes. Four out of every five earthquakes occur in the Ring of Fire.
Other, much smaller earthquakes also occur away from plate boundaries such as those related to volcanic activity in Hawaii or those related to wastewater injection wells in Oklahoma. You can view a YouTube version of this animation here. Notable Features. The great majority of earthquakes occur at tectonic plate boundaries. 1  The majority of great earthquakes (magnitude 8.0 or larger) are megathrust earthquakes that occur at convergent plate boundaries, also called destructive margins or subduction zones. For an earthquake to pose a tsunami hazard it needs to vertically move the seafloor; therefore it needs to be large (typically 8.0 or larger), under or near the ocean, and shallow within the earth (less than 100 km).