IEEE Spectrum has a big special feature online now about the Fukushima nuclear disaster and its after-effects. It includes an interactive map showing the impact that Fukushima has had on evacuation of residents, contamination of soil, and contamination of food and water supplies.

It also includes a blow-by-blow account of what happened during the first 24-hours of the disaster. This solid investigative reporting by Eliza Strickland highlights several key points where simple changes could have lead to a very different outcome than the one we got.

True, the antinuclear forces will find plenty in the Fukushima saga to bolster their arguments. The interlocked and cascading chain of mishaps seems to be a textbook validation of the "normal accidents" hypothesis developed by Charles Perrow after Three Mile Island. Perrow, a Yale University sociologist, identified the nuclear power plant as the canonical tightly coupled system, in which the occasional catastrophic failure is inevitable. On the other hand, close study of the disaster's first 24 hours, before the cascade of failures carried reactor 1 beyond any hope of salvation, reveals clear inflection points where minor differences would have prevented events from spiraling out of control. Some of these are astonishingly simple: If the emergency generators had been installed on upper floors rather than in basements, for example, the disaster would have stopped before it began. And if workers had been able to vent gases in reactor 1 sooner, the rest of the plant's destruction might well have been averted. The world's three major nuclear accidents had very different causes, but they have one important thing in common: In each case, the company or government agency in charge withheld critical information from the public. And in the absence of information, the panicked public began to associate all nuclear power with horror and radiation nightmares. The owner of the Fukushima plant, the Tokyo Electric Power Co. (TEPCO), has only made the situation worse by presenting the Japanese and global public with obfuscations instead of a clear-eyed accounting. Citing a government investigation, TEPCO has steadfastly refused to make workers available for interviews and is barely answering questions about the accident. By piecing together as best we can the story of what happened during the first 24 hours, when reactor 1 was spiraling toward catastrophe, we hope to facilitate the process of learning-by-disaster.

I'm reading Perrow's Normal Accidents: Living with High-Risk Technologies

right now. I'm not very far into it yet, but it will be interesting to contrast the thesis I see him putting together— i.e., you're never going to account for all those simple-in-retrospect things that could have stopped a disaster and, in fact, trying to solve some of those lapses actually causes others—with Strickland's riveting account of the first day of Fukushima.

Image: Fukushima 1 Nuclear Power Plant_27, a Creative Commons Attribution (2.0) image from hige2's photostream