Nuclear Meltdown

My heart goes out to the thousands of Japanese affected by the 9.0 earthquake, tsunami and now the threatening nuclear meltdown of the damaged reactors. Last week no one would have thought such a thing would happen. Everyone was focused on the massive quake in Christchurch. Then suddenly we have a continent moving quake with a massive tsunami. Wasn't the last tsunami in 2004 supposed to be a 1 in a 100 year event? Evidently not. I admire those working hard to prevent a nuclear disaster. They may be exposed to fatal amounts of radiation and are risking their lives to save others.