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The coast of North America has some very large earthquakes, especially along the southern coast of Alaska, where the good Friday earthquake of 1964 struck. However, the largest earthquake to occur in the twentieth century is the 1960 Chilean earthquake, which occurred off the coast of South America.

The force of this earthquake has been estimated at 9.5 magnitude.

The earthquake leveled cities for 525 miles along the Chilean coast and created a deadly tsunami more than 30 feet in height along the Chile coast, eliminating entire villages.

The tsunami continued across the Pacific, striking Hawaii and eventually the coast of Japan, more than 8000 miles from the epicenter.