Consider the facts:
- The Fukushima I Nuclear Power Plant is nearly 40 years old
- The plant was only designed to handle a magnitude 8.0 earthquake (the Tōhoku earthquake was measured at 9.0)
- The plant was only designed to handle a tsunami of 5.7 meters (18.2 ft) but was subjected to waves of water 11 meters high
Here's a great visual chart of radiation dosing... see if you can find what the Fukushima I incident resulted in, along with Chernobyl, Three Mile Island, and normal safe limits.