history on Instagram: "On March 11, 2011, a magnitude 9.0 earthquake struck off the northeastern coast of Japan—the most powerful ever recorded in the country’s history. Just 30 minutes later, a wall of water over 40 feet high crashed into coastal towns at highway speeds, swallowing everything in its path. Entire neighborhoods were flattened in seconds. Cars, buildings, and people were swept away without warning. Sirens blared too late for many, and some evacuation centers were even hit directly

Understanding Earthquake Preparedness and Safety