(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 ...

Researchers onboard the deep sea scientific drilling vessel Chikyu sailed to the Japan Trench to drill up to 7,906 metres beneath the seafloor. Credit: JAMSTEC/IODP. A thin, soft and slippery layer of ...