Officials said the megaquake advisory is not a prediction and the probability of a magnitude 8 or larger quake is only about ...

Japan is learning what life is life under a megaquake watch. NPR's Rob Schmitz talks to Richard Allen, director of the Berkeley Seismology Lab, about what it means.

After a 7.5-magnitude earthquake on Monday, Japanese officials issued a rare warning for a potentially even larger follow-up.

Right now, millions of people along Japan’s northeastern coast are spending their days under a rare warning that a “megaquake ...

Authorities are urging residents to review evacuation plans as simulations suggest a ‘maximum-class’ winter night quake could ...

Japanese authorities say a megaquake could cause a devastating tsunami to strike eastern coastal areas of Japan ...

Two major earthquakes on opposite sides of the Pacific within roughly two days have jolted public anxiety, feeding talk of a ...

"Please stay prepared to evacuate immediately if you feel any shaking, while continuing your socioeconomic activities.” ...

A megaquake is defined as an exceptionally large earthquake, typically of magnitude 8.0 or higher, that occurs in a subduction zone. Subduction zones are geological areas where one tectonic plate is ...

JAPAN’S weather agency has issued its first-ever megaquake warning in the north of the country after a horrific magnitude 7.6 ...

Japan is warning about a potential megaquake after a massive earthquake struck parts of the country. CBS News' Errol Barnett ...