![Imagery of Fukushima shockwaves over Pacific Ocean, March 2011.](/s3/styles/webp/s3/migrated/fukushima2_2.png.webp?itok=jmfxVEJh)
Ten years ago today, a 9.1 magnitude earthquake struck off the coast of Japan. The activity generated a devastating tsunami, which reached the country within 30 minutes. It was the largest magnitude earthquake ever recorded in the region, and was the third-largest in the world since 1900.