Japan is lifting a megaquake advisory for the country’s northeastern coast, a week after a magnitude 7.5 earthquake struck ...

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.

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

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

Japan lifted a rare warning for a potential megaquake a week after a magnitude-7.5 tremor struck off its northern coast.

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 ...

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

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

The 7.5 magnitude earthquake occurred at night on Dec. 8 off Aomori Prefecture's Pacific coast at a depth of 54 km, prompting the Japan Meteorological Agency (JMA) to issue tsunami warnings for parts ...