An earthquake with a magnitude of 7.6 shook the Caribbean Sea southwest of Cayman Islands on Saturday, the U.S. Geological Survey said.

On Feb. 7, 1812, there was perhaps the most notable of three large earthquakes that shook the New Madrid seismic zone that ...

A 3.4-magnitude earthquake rattled the Northern California area, the U.S. Geological Survey reported. The 4-mile deep quake hit about 5 miles northeast of San Martin in the Santa Clara Valley at 12:35 ...

The world’s largest atomic bomb was exploded by the Russians north of the Arctic Circle in 1961. It was equivalent to 2,500 Hiroshima A-bombs. The fireball was 5 miles in diameter and could ...

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