Showing posts with label Japan. Show all posts
Showing posts with label Japan. Show all posts

Wednesday, March 16, 2011

When Nuke Planning for the Worst Is Not Enough

As hopes dim for controlling the explosive self-destruction of six decomposing nuclear plants on Japan's northeast coast, safety experts around the world want to know what was missing in the tens of thousands of pages of repeatedly tested emergency drills crafted to cover every eventuality.

Japanese and U.S. safety officials say the emergency plans for almost every plant, everywhere, precisely detail every possible response after an earthquake, flood or tsunamiand explosion. But as the past five days have shown, these disaster plans seemed fine until reality reared back and slapped them silly, and this is just what happened at the Fukushima Dai-ichi nuclear complex.

When Nuclear Plant Planning for the Worst Is Not Enough
DigitalGlobe / AP
A satellite photo shows the damage after the Japanese earthquake and tsunami at the Fukushima Dai-ichi nuclear power plant complex. Steam can be seen venting from the No. 2 reactor building, as well as from the No. 3 reactor building.

Some of the answers are in the numbers.

The plants were meticulously designed to survive a 7.2 quake and were hit with a violent tremor of 9.0.

Plant designers knew that they were tsunami bait, so they built a 25-foot-high protective wall between the ocean and the reactors. Japanese safety officials say that the 30-foot wave triggered by the quake didn't even pause as it thundered toward the six reactors in the complex.

Japan

Japan Faces Nuclear Crisis After Third Explosion at Plant

High levels of radiation have leaked from the Fukushima nuclear plant in Japan after a third explosion at the crippled plant. The latest blast seriously damaged the Number Two reactor’s steel containment structure. In addition, a fire briefly broke out at the plant’s reactor Number Four. Officials just south of the plant reported up to 100 times the normal levels of radiation.

Radiation Leaks Force Over 70,000 to Evacuate

Japan’s Tokyo Electric Power Company said it has pulled out 800 workers from the nuclear power facility due to safety concerns. Some 70,000 residents have been forced to evacuate their homes. Another 140,000 people have been ordered not to step outside. Low levels of radiation are now floating toward Tokyo. Earlier today, Japanese Cabinet Secretary Yukio Edano issued a frank warning about the crisis.
Cabinet Secretary Yukio Edano: "There is no mistake that this is a level that can have an effect on humans. People within the area should not have contact with the air as much as possible, and I would like to ask people to stay indoors."

Thousands of Bodies Wash Up on Japan’s Shore

Japan is also dealing with a humanitarian crisis as millions of people in Japan’s devastated northeast are spending a fourth night without water, food or heating in near-freezing temperatures. Officials expect the death toll from Friday’s earthquake and tsunami to exceed 10,000. On Monday, more than 2,000 bodies washed up on the beaches of Miyagi Prefecture.

Germany Shuts Down Nuclear Reactors Following Japan Disaster

The nuclear crisis in Japan has sparked a debate over the future of nuclear energy across the globe. German Chancellor Angela Merkel has announced that the country’s seven nuclear reactors built before 1980 will be shut down for a three-month review of German plant safety. On Monday, Merkel suspended plans to extend the life of Germany’s 17 nuclear reactors.

Japan

Japan Faces Nuclear Crisis After Third Explosion at Plant

High levels of radiation have leaked from the Fukushima nuclear plant in Japan after a third explosion at the crippled plant. The latest blast seriously damaged the Number Two reactor’s steel containment structure. In addition, a fire briefly broke out at the plant’s reactor Number Four. Officials just south of the plant reported up to 100 times the normal levels of radiation.

Radiation Leaks Force Over 70,000 to Evacuate

Japan’s Tokyo Electric Power Company said it has pulled out 800 workers from the nuclear power facility due to safety concerns. Some 70,000 residents have been forced to evacuate their homes. Another 140,000 people have been ordered not to step outside. Low levels of radiation are now floating toward Tokyo. Earlier today, Japanese Cabinet Secretary Yukio Edano issued a frank warning about the crisis.
Cabinet Secretary Yukio Edano: "There is no mistake that this is a level that can have an effect on humans. People within the area should not have contact with the air as much as possible, and I would like to ask people to stay indoors."

Thousands of Bodies Wash Up on Japan’s Shore

Japan is also dealing with a humanitarian crisis as millions of people in Japan’s devastated northeast are spending a fourth night without water, food or heating in near-freezing temperatures. Officials expect the death toll from Friday’s earthquake and tsunami to exceed 10,000. On Monday, more than 2,000 bodies washed up on the beaches of Miyagi Prefecture.

Germany Shuts Down Nuclear Reactors Following Japan Disaster

The nuclear crisis in Japan has sparked a debate over the future of nuclear energy across the globe. German Chancellor Angela Merkel has announced that the country’s seven nuclear reactors built before 1980 will be shut down for a three-month review of German plant safety. On Monday, Merkel suspended plans to extend the life of Germany’s 17 nuclear reactors.