Timeline: A Nuclear Crisis Unfolds In Japan

Radiation levels continue to rise in the ocean, offshore from the nuclear power plant. Officials are also evaluating whether to expand the mandatory evacuation area after the report of high levels of radiation in the village of Iitate, 25 miles from the plant. Workers also continue to struggle with pooling radioactive water; they must keep pumping water to cool the reactors, but storage of contaminated water is becoming problematic.

Source: NPR