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 massive tsunami generated by a magnitude-9.1 earthquake struck Japan's coast within 30 minutes. Waves as high as 130 feet spilled over seawalls. Within days, three nuclear reactors were disabled.

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

(CNN) — Here’s a look at the earthquake and tsunami that struck Japan in March of 2011. March 11, 2011 – At 2:46 p.m., a 9.1 magnitude earthquake takes place 231 miles northeast of Tokyo at a depth of ...