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8.9 Magnitude Earthquake Hits Japan + Tsunami and Alerts
We should stop making it seem like there are so many aftershocks. There have been two, a 6.1 in Eastern Honshu and a 5.6 in Fukushima. Though I think we would've heard more from the Fukushima one, considering the situation as of present.

And I think the evacuation of the operators were just safety measures to ensure the combat force for this long fight. The safety of them (and possibly their children) are valuable to the industry as a whole.
Quote:At 8:34am local time white smoke was seen billowing out of Fukushima Daiichi 3. Efforts to determine the cause of this development were interrupted as all workers had evacuated to a safe area due to rising radiation readings. Readings from a sensor near the front gate had fluctuated for some time, although Edano said that on the whole there was no health hazard. Earlier in the morning readings had ranged between 600-800 microsieverts per hour, but at 10am readings rose to 1000 microsieverts per hour. Readings began to fall again from around 10:54.
Which is one millisievert,
>> In order to provide some perspective on worker doses to this point, radiation sickness sets in at roughly 1000 millisieverts
Which is 1 sievert; and:
Wikipedia Wrote:Symptoms of acute radiation (within one day):[13]
0 – 0.25 Sv (0 - 250 mSv): None
0.25 – 1 Sv (250 - 1000 mSv): Some people feel nausea and loss of appetite; bone marrow, lymph nodes, spleen damaged.
1 – 3 Sv (1000 - 3000 mSv): Mild to severe nausea, loss of appetite, infection; more severe bone marrow, lymph node, spleen damage; recovery probable, not assured.
3 – 6 Sv (3000 - 6000 mSv): Severe nausea, loss of appetite; hemorrhaging, infection, diarrhea, skin peels, sterility; death if untreated.
6 – 10 Sv (6000 - 10000 mSv): Above symptoms plus central nervous system impairment; death expected.
Above 10 Sv (10000 mSv): Incapacitation and death.

For the sake of comparison, this is the worst case scenario: "Typical dose near Chernobyl reactor 4 and its fragments, shortly after explosion: ≈ 10,000–300,000 mSv/hr"
That's 10 sieverts/HOUR, we're still at 1 millisievert per hour, tops.

So far, we're looking at nausea and loss of appetite if the radiation were about a thousand times stronger, so long as we sit there in the radioactive zone the whole day. Cancer, tumour and genetic damage among other stochastic effects of radiation requires prolonged (year(s)) periods of exposure to radiation. Let's hope they'll know better than to raise cows in Fukushima after this accident.
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8.9 Magnitude Earthquake Hits Japan + Tsunami and Alerts - by Kalovale - 2011-03-16, 12:24 PM

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