nuffnang

Kronologi Gempa Bumi dan Tsunami di Jepun

Semoga keadaan reaktor nuklear dapat dikawal.. jika tidak, pasti peristiwa Chernobyl akan berulang lagi..

Sumber : CNN


(CNN) -- Here's a minute-by-minute look at the devastating earthquake and tsunami that hit Japan on Friday and subsequent worries over damage at nuclear power plants. (All times and dates are local Japanese time).

FRIDAY
2:46 PM
Magnitude 8.9 earthquake 231 miles northeast of Tokyo, Japan at a depth of 15.2 miles.
Quake is fifth largest in the world (since 1900) and the largest quake ever to hit Japan.
Pacific Tsunami Warning Center issues tsunami warning for the Pacific Ocean from Japan to the U.S. west coast. Tsunami alerts sound in more than 50 countries and territories. .
Within an hour after the quake a wall of water up to 30 feet high washes over the Japanese coast.
Cars, boats and trains are swept away. Buildings collapse. Roads and highways are severed. Fires break out in many locations..
8:15 PM
Japanese government declares emergency for nuclear power plant near Sendai, 180 miles from Tokyo. Japan has 54 nuclear power plants.
10:29 PM
Cooling system at Fukushima nuclear report are reported not working: Authorities say they are "bracing for the worst.
Several thousand people living within a mile-and-a-half of the plant are ordered to evacuate.
11:53 PM
A fire at Onagawa nuclear plant is extinguished, according to the International Atomic Energy Agency.

SATURDAY
12:39 AM
Fires are reported in at least three Japanese prefectures (Hakodate, Chiba, Miyagi). An oil refinery was ablaze near Tokyo.
12:42 AM
A dam breaks in Fukushima prefecture, washing away scores of homes.
2:06 AM
Radiation level in Fukushima No. 1 nuclear power plant reported rising.
3:24 AM
Japanese trade minister Banri Kaieda says small radiation leak could occur at Fukushima nuclear plant.
4:21 AM
6.2 magnitude earthquake hits Nagano and Niigata prefectures, according to the US Geological Survey.
4:40 AM
Power company officials announced they will vent possibly radioactive air from the Fukushima nuclear plant to avoid a breakdown of the reactor's containment vessels.
5:00 AM
Nuclear emergency declared at Fukushima Daiichi nuclear power plant.
Officials report the earthquake and tsunami cut off the plant's electrical power and that backup generators had been disabled by the tsunami.
5:56 AM
Another earthquake --- one of a series over the past 24 hours --- hits west coast of Honshu. The quake had a strength of 6.3 magnitude.
6:45 AM
Tokyo Electric Power IC. says radioactive substances could have leaked at the Fukushima No, 1 nuclear plant. Japan's Nuclear and Industrial Safety Agency says radiation near the plant's main gate is more than eight times normal level.
9:45 AM
Tokyo Power Co. says cooling systems at three of the four units of its Fukushima Daini plant have failed.
11:20 AM
At least 6 million homes -- 10 percent of Japan's households are without electricity, according to the country's ambassador to the US.
4:19 PM
A small amount of radioactive Cesium has escaped from a nuclear plant in Fukushima prefecture, according to Japan's Nuclear and Industrial Agency. Officials say the leak could have been caused by the melting of a fuel rod.
6:22 PM
Tokyo Electric Company says an explosion at the Fukushima Daiichi plant injured four workers. (Kyodo News Agency will later quote electric company officials as saying the explosion caused the roof of a reactor to collapse.)
7:17 AM
Technicians worked to contain temperatures at two Japanese nuclear power plants where cooling systems had been crippled by the disaster.
7:59 PM
US Geological Survey says the quake appears to have moved Japan's main island --- the whole island --- by 8 feet and shifted the earth on its axis.
8:18 PM
Evacuation area around Fukushima Daiichi nuclear power plant extended to 20 kilometers (about 12.5 miles.)
8:54 PM
Authorities insist no harmful gasses had been emitted by the explosion at Fukushima nuclear plant. They blamed the explosion on "water vapor that was part of the cooling process."
10:35 PM
Radiation levels at the Fukushima Daiichi plant are reported to have fallen, as officials prepare to flood the containment structure with sea water to bring temperatures down.
Authorities make plans to distribute iodine tablets --- a treatment to prevent radiation poisoning -- to residents near two damaged nuclear plants.
10:49 PM
A cabinet official says the collapse of the walls of a building at the Fukushima Daiichi plant did not damage the reactor and its containment system.
11:48 PM
Many areas experience blackouts as power plants are shut down for safety reasons. The number of houses without power is down to just over 5 million, according to the power company.

SUNDAY
12:03 AM
More than 83,000 people living within 3 miles of two power plants begin a government-ordered evacuation.
3:20 AM
Three people (selected at random out of 90) test positive for radiation exposure in Fukushima prefecture.
5:37 AM
There is news that Japanese authorities have informed the International Atomic Energy Agency (IAEA) that the explosion at the Fukushima Daiichi plant occurred outside the primary containment vessel. The Tokyo Power Company says the integrity of the containment vessel has not been compromised. Sea water mixed with Boron is being injected in an effort to cool the system.


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