Back when Fukushima had it’s issues due to an earthquake moving the entire island of Japan 8 feet over, Randall Munroe over at XKCD had not yet gone off the rails, and posted an interesting and highly useful infographic on radiation levels.

For people who hadn’t been trained in radiation dosimetry, it certainly is a damned useful way to visualize the degree of hazard associated with the radiation released from Fukushima when broke down.