A record-breaking deep earthquake registered in May 2025 offshore of Japan likely was not a tectonic event, but triggered by a mineralogical shift in Earth’s mantle.

On March 11, 2011, a powerful earthquake struck Japan from its main island, Honshu. The magnitude 9.0 earthquake, one of the ...

A re-examination of the 2015 Bonin Islands earthquake disproved earlier claims of a record-breaking deep aftershock in the ...

Dating key tectonic events in Japan's geological history has long been often challenging due to poor microfossil preservation from intense heat due to metamorphism. Researchers tackled this by using ...

The magnitude 7.9 Bonin Islands earthquake sequence, which ruptured deep within the earth near the base of the upper mantle, did not include an aftershock that extended to record depths into the lower ...

The probability of a “megaquake” in Japan in the next 30 years has marginally increased, a government panel said, with a 75-82% chance of it happening.

The new threat level issued by Japan’s Earthquake Research Committee is similar to estimates published in the journal ...

Government panel reveals more than 80 per cent probability of massive earthquake along Nankai Trough, an 800km-long undersea ...

A "megaquake" hitting Japan in the next 30 years could trigger 100-foot tsunamis and kill hundreds of thousands of people.

Japan is preparing for potentially devastating earthquake, with experts warning of increased likelihood of tremors with a ...