Fukushima and Chernobyl Comparison

The nuclear disaster in Fukushima has been called the second worst nuclear disaster following Chernobyl. For the amounts of radiation released, the Fukushima disaster was quite serious, but in terms of radioactive material spread, Chernobyl was much worse. The following is a chart comparing the spread of radioactive cesium 137. It shows that the levels released from the Fukushima reactor were much less.