Terrifying History on Instagram: "On March 11, 2011, at 2:46 p.m. local time, a magnitude 9.0–9.1 undersea megathrust earthquake struck off the coast of northeastern Japan, triggering a devastating tsunami with waves reaching up to 40 meters (131 feet) in height. As the tsunami surged toward the coast, the Japanese Coast Guard vessel Mizuho—stationed near Kesennuma Bay in Miyagi Prefecture—spotted the approaching wall of water. With professionalism and calm urgency, a crew member announced over