Japan has developed an undersea warning system that can detect earthquakes 20 seconds before they reach land, significantly ...

Japan is highly prone to devastating earthquakes, and the country has readily taken steps to avert the threat posed to its ...

The “megathrust” earthquake’s undersea magnitude was 9.0, recorded as one of the worst in Japan’s history. It began on the Pacific seabed 45 miles away from the eastern coast of Japan, as reported by ...