If you’re just starting your routine this Friday morning, you’ve likely already seen that a massive earthquake struck Japan about 230 miles offshore from Tokyo. The 8.9 magnitude earthquake is one of the top seven most powerful quakes in recorded history, and the largest to hit Japan in over 100 years. Occurring relatively close to the surface, the Sendai Earthquake, as it’s being called, triggered a tsunami, with waves as tall as 30 feet. Since the initial quake, a series of aftershocks have hit Japan as well, with many of those having a magnitude of 5.0 or greater on the Richter scale.