A new study claims that an 80-100-foot-wide layer of clay exacerbated the 2011 earthquake.
A thin, soft and slippery layer of clay-rich mud embedded in rock below the seafloor intensified the 2011 Japan earthquake ...
TOKYO (AP) — Japan was assessing damage Tuesday and cautioning people of potential aftershocks after a late-night 7.5 magnitude earthquake caused injuries, light damage and a tsunami in Pacific ...