Once-in-centuries megaquakes that release enormous amounts of energy and can spawn devastating tsunami are becoming ...

On Monday, at 4:53 P.M. local time, a magnitude 7.7 earthquake struck off the northeastern shores of Japan’s largest island, Honshu, where the Pacific tectonic plate plunges beneath the North American ...

A huge 6.2-magnitude earthquake struck northern Japan early on Monday, a week after a 7.7-magnitude quake prompted the country to warn of a slightly increased risk of a megaquake ...

This photo shows a warning message on a screen from a live feed on NHK with tsunami alert after an earthquake hit northern Japan, in Tokyo on April 20, 2026. A 7.4-magnitude earthquake struck northern ...

TOKYO (AP) — An earthquake registering a preliminary magnitude of 7.7 off northern Japan on Monday prompted a short-lived tsunami alert and the advisory of a higher risk of a possible mega-quake for ...