Japanese Disasters Need-to-Know Glossary Update

Added: Chest x rays, Black swans, Dinosaur extinction event, Two packs-a-day

AUSTIN, Texas, March 21,  2011 — (Updated Daily) The Global Language Monitor has assembled the Japanese Disasters Need-to-Know Glossary to help understand the sometimes obtuse and ofter obscure terminology used in describing the concurrent Japanese Disasters that we are now witnessing.

We will add to the document as events continue to unfold.

“This is a tragedy of unprecedented proportions.  We believe it is our responsibility to help people around the globe more fully understand the depth of the destruction and the nature of the circumstances that have already have and continue to unfold,” said Paul JJ Payack, President and Chief Word Analyst of the Global Language Monitor.

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Term Definition
1.6 microseconds Number of microseconds the Earth’s spin was increased by the Sendai earthquake
9.0 magnitude The Japanese quake was 9.0 on the Richter Scale. This makes it about 700,000 times more powerful than last year’s Haitian earthquake. (See Richter Scale.)
12.5 magnitude Theoretical magnitude of the Chicxulub asteroid impact 65,000,000,000 years ago that led to the extinction of the dinosaurs. (However, mammals live through it.)
900 kph The waves of the tsunami traveled traveled about as fast as of typical passenger jetliner (About 560 mph/900 kph)
Black Swan Black Swan: rare but Nation-destroying disasters: an asteroid hitting the earth; a super volcano (Yellowstone Caldera) rending half a continent lifeless; a solar flare that destroys all modern communication systems. The Japanese Tri-Crisis qualifies as a Black Swab.
Cesium-137 Metal of the Alkali group that can signal the presence of a nuclear reaction. The half-life of Cesium 137 is 30 years. This means it would take about 200 years for something contaminated with it to lose all signs of radioactivity. Its name is derived from the Latin for a bluish-gray color
Chernobyl The Chernobyl incident in Ukraine in 1986 was considered the world’s worst nuclear accident until now. A carbon-fed fire sent the radioactive elements high into the atmosphere affecting every country in Europe.
Chest X Ray Each chest x ray exposes you to about .04 mSv. A major surgery might require 1,000 x rays, which would result in 40 mSv. A single CT heart scan results in a 12 mSv exposure.
China Syndrome Theory that a molten nuclear core breeches its containment vessel (in the US) and proceeds through the Earth’s core all the way to China. This is not actually possible. (See Tierra del Fuego syndrome.)
Containment Building (or vessel) Reinforced concrete structure made to serve as final barrier to entrap radioactive gases
Earthquake Shaking of Earth’s crust due to underlying tectonic forces
Epicenter The center of the earthquake, ofter miles underground.
Fuel Rods The affected Japanese reactors have thousands of 12-foot long, zirconium-alloy fuel rods. Each contain thousands of uranium-oxide ceramic pellets. The fuel rods are densely packed into the reactor.
Fukushima 50 The fifty workers serving as the final defense against a catastrophic meltdown at Fukushima Daiichi.
Fukushima Daiichi The nuclear reactors site with six boiling water reactors. 1, 2 and 6 were built by General Electric. 3, 4 and 5 were built by Toshiba. Fukushima Daiichi is 241 km (150 miles) from Tokyo.
Half-Life The time it takes radioactive material to expend one half of its radioactivity. The longer the half-life, the more dangerous the material.
Hiroshima Bomb The Hiroshima atomic bomb was detonated on August 6, 1945. It’s yield was estimated between 13 and 18 kilotons of TNT. It was set equivalent to a 6.2 magnitude quake.
IAEA International Atomic Energy Agency is headquartered in Vienna.
Indian Ocean Tsunami The Indian Ocean Tsunami on Boxing Day in 2004 resulted in waves over 18 meters (50 feet) high. Over 250,000 people were killed, some 5,000 km (3000 m) away.
International Nuclear and Radiological Event Scale (INES) The INES, introduced in1990 by the IAEA, has seven levels, with 1-3 considered incidents and 4-7, accidents. The Fukushima incident was recently moved from Level 4 to 5 (equivalent to Three Mile Island). Chernobyl is the only Level 7 accident on record.). The French Nuclear Agency suggests Fukushima to be a Level 6.
Iodine-131 Iodine-131 is a highly radioactive element that signifies at least a partial meltdown. The half-life of Iodine-131 is about 8 days, which means that it decays far faster than Cesium-137. The radioactive iodine is concentrated in the thyroid, however taking iodine potassium tablets fill the thyroid to capacity so the radioactive Iodine -131 is more likely to be excreted.
Krakatoa Indonesian Volcano that exploded in 1883 with a force equivalent to 8.5 magnitude (and some 200 megatons). Purported to be the loudest sound ever heard up to 5,000 km (or about 3,000 miles). The sound waves were measured to circle the earth seven times.
Linear No Threshold Model LNT basically it means that even a small exposure to radioactivity will increase the chance of cancer occurring in a corresponding small percentage of the population. The smaller the exposure, the smaller the risk, but the risk never falls to zero. The LNT model is generally accepted by most governments and scientific agencies, but is considered controversial in some scientific circles. This is why you hear conflicting views from experts on the cancer risk.
Meltdown When a core meltdown catastrophic melting of the core of a nuclear reactor due to a loss of cooling
No. 5 The earthquake was the fifth strongest since 1900.
Nuclear reactor Devices that use chain reactions of fissionable materials to boil water to create steam. The steam runs through turbines to create power.
Plate tectonics Theory that the continents rest on plates that drift into each other, causing earthquakes and mountain building
Prefecture States or Provinces of Japan. There are 47 prefectures.
Richter scale The logarithmic scale that measures the strength of an earthquake named after Charles Richter. It is a base-10 logarithmic scale. This means that an earthquake that measures 3.0 is 10 times more powerful that one measuring 2.0. The scale is open-ended, though the 1960 Chile quake measured at 9.6.
Sendai Earthquake At 9.0 the Sendai earthquake was the fifth largest since 1900. The Sendai quake was equivalent to about 100,000 Hiroshima-class bombs.
Sievert and millisievert (and millisievert) A unit of measurement for radiation dosage. According to the World Health Organization, the average person is exposed to about 3 millisieverts a year from natural sources and 3 mSv from human-made sources.
Three Mile Island In 1979 Unit No. 2 of the Three Mile Island Nuclear Generating Station near Harrisburg, Pennsylvania experienced a partial meltdown. Later it was found that the molten radioactive material penetrated within 1 centimeter of breaking through the containment barrier. Because of its location and the prevailing wind patterns, the fallout could have traveled over the heavily populated Eastern Seaboard, passing over Philadelphia, New York and possibly Boston with a population of more than 30,000,000.
Tierra del Fuego Syndrome The China Syndrome when applied to the Far East (See China Syndrome.)
Tokyo Capital of Japan with more than 30,000,000 people in its metropolitan area.
Tsar Bomba The largest hydrogen bomb ever detonated, by the Soviet Union in 1961. It was about equal to a 7.8 magnitude quake in the general range of the San Francisco earthquake 0f 1908 and the Mount Saint Helen’s volcanic explosion in 1981.
Tsunami From the Japanese tsu (harbor) and nami (wave); waves caused by undersea land movement; usually caused by earthquakes. A tsunami gathers destructive force as it nears land. Depending on the configuration of the shoreline, wave rise over ten-times in height.
Two Packs a Day Smoking two packs of cigarettes a day exposes you to about 17 mSv per year. Smoke for a lifetime that’s 850 mSv.

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