Google's earthquake early-warning system has used phone accelerometers on Android devices to increase quake alerts by tenfold across 98 countries.

Japan’s latest disaster advisory has revived a chilling term in the seismology world: “megaquake.” The warning followed a powerful offshore shock and raised the prospect of a far larger rupture that ...

Japan’s weather agency has issued a megaquake warning, the highest level of earthquake alert, hours after a 7.5 magnitude tremor struck the country. Residents living near the Pacific coast have been ...