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.

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 ...

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

The Dec 8 magnitude-7.5 quake caused 70cm tsunami waves and over 40 injuries, but no major damage was reported.

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

What is a megaquake? Japan issues first official warning for disaster that could kills tens of thousands - Japanese ...

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

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

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 warned that another large-scale megaquake could follow the 7.6 magnitude tremor that hit the ...

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