Unseen World on Instagram: "March 11, 2011 — a date Japan will never forget. At 2:46 PM, one of the strongest earthquakes in recorded history — magnitude 9.1 — struck off the coast of Honshu. Moments later, walls of water over 40 meters high crashed into the Tōhoku region. Entire towns vanished within minutes. The force of the quake was so immense that it shifted Japan’s main island by 2.4 meters and even tilted the Earth’s axis by nearly 10 centimeters. Days became 1.8 milliseconds shorter. Mor