If a magnitude 8 level earthquake occurs along the Nankai Trough — a structural depression between two tectonic plates that run alongside Japan's western prefectures — then the chance of another "Big ...

The probability that a Nankai Trough megaquake will occur in the next 30 years has risen to “around 80%,” according to new research released Wednesday by a government expert panel. Every year, the ...

A study finds that a representative sample of people given wearable data collection devices provides more equitable and ...