A new study claims that an 80-100-foot-wide layer of clay exacerbated the 2011 earthquake.

The earthquake that killed tens of thousands of people and led to the Fukushima nuclear shutdown was amplified by a soft layer of slippery clay, according to a new study. The layer is only around ...

A thin, soft and slippery layer of clay-rich mud embedded in rock below the seafloor intensified the 2011 Japan earthquake ...

A new study from the bottom of the Pacific Ocean has partly revealed why the 2011 Japan earthquake and tsunami were so devastating—and how scientists may be able to better understand intense disasters ...