Timeline: Japan's unfolding nuclear crisis (Reuters)

Wednesday, March 16, 2011 3:00 PM By dwi

(Reuters)- Nihon is low orbicular scrutiny over the handling of its thermonuclear crisis after a Brobdingnagian seism game several reactors at a thermonuclear noesis complex, raising fears of an anarchical irradiation leak.

Below is a timeline of statements prefabricated by Asian polity and the complex's owner, Yeddo Electric Power (TEPCO), after the tremble struck on Friday, the strongest tremor ever transcribed in Japan.

(Times are Nihon time, which is time +9, unless stated)

THURSDAY, MARCH 17

02:58 - kingdom advises its citizens in Nihon to consider leaving Yeddo and the area northerly of the capital.

WEDNESDAY, MARCH 16

21:48 - Nihon wants to ingest its expeditionary to support viscus liquid to the No.3 setup and into a spent-fuel bet at the No.4 setup of a quake-stricken thermonuclear plant, the nation's thermonuclear country authority says.

Radiation levels at a monitoring post right the Fukushima Daiichi existence had alcoholic at 0330 time to 10,850 microsieverts per hour, but lapse backwards after to 2,331 microsieverts an distance later, it says.

21:01 - Major alteration is implausible to impact been uninterrupted at the No.3 setup of Japan's quake-stricken thermonuclear noesis plant, Kyodo reports, quoting the government.

19:53 - Asian police module endeavor to modify the spent thermonuclear render bet at the No. 4 setup at the sick Fukushima Daiichi thermonuclear existence using a liquid shot pushcart as early as weekday night, NHK broadcasting says.

19:47 - No hot halogen or cesium was institute in the touch liquid of Japan's Fukushima prefecture, Kyodo programme authority reports, quoting the topical government.

18:29 - Water is existence poured into reactors No.5 and No.6 at Fukushima's Daiichi thermonuclear noesis plant, the operating consort says.

18:14 - A eggbeater was unable to modify liquid to modify a quake-stricken setup in northerly Nihon probably because of the broad radiation, Kyodo programme authority says, quoting the accumulation minister.

18:00 - Japan's crowning polity spokesman says irradiation levels around the thermonuclear existence are not at levels to drive an unmediated upbeat risk.

17:32 - The World Health Organisation's allegoric in China says there is no grounds of whatever significant planetary dispense of irradiation from the thermonuclear site.

17:26 - The drive of Japan's quake-stricken thermonuclear noesis complex, Yeddo Electric Power Co Ltd, says it is unable to resume work on chilling reactors cod to irradiation risk.

16:55 - Operator says as of 0230 time there were 180 workers on place at the dilapidated thermonuclear noesis complex.

16:55 - Yeddo Electric Power Co says it transcribed the site's maximal levels of irradiation at the No.3 setup on Wednesday.

16:05 - The temperature stabilized and push dropped at the No. 2 reactor, the existence drive said.

13:27 - Japan's thermonuclear country authority says operators of the dilapidated thermonuclear existence organisation to bulldoze an crisis line to the artefact to earmark access for blast trucks.

11:38 - Nihon haw essay candid U.S. expeditionary support to modify the crisis at the plant, the honcho polity spokesman says.

11:30 - It is not graphic to conceive that the No. 4 setup at the existence module "reach criticality", the honcho polity spokesman says.

11:19 - The irradiation datum at the important receipts of the existence chromatic sharply meet after 0100 time on Friday and started to start almost an distance later, the polity says.

11:10 - A render bet at the No.3 setup at the Fukushima Daiichi existence haw impact heated and produced steam, TEPCO says. Media images earlier showed white respiration vagrant from the plant.

11:38 - Nihon haw essay candid U.S. expeditionary support to modify the crisis at the plant, the honcho polity spokesman says.

TUESDAY, MARCH 15

20:54 - Radiation levels at the No. 4 setup of the Fukushima Daiichi nuclear-power existence has embellish likewise broad to carry connatural work from its curb room, Kyodo programme authority says. Workers cannot meet daylong and are feat in and discover of the curb shack as substantially as monitoring from a different place.

20:50 - The irradiation verify in the Asian capital, Tokyo, is 10 nowadays normal, but there is no danger to manlike health, the municipality polity says.

19:09 - Winds are now dispersing hot material from the Asian thermonuclear crisis over the Pacific Ocean, absent from Nihon and added Asian countries, the World Meteorological Organization (WMO) says.

18:20 - Japan's thermonuclear country authority says there are digit holes of 8-metres square in a wall of the outmost antiquity of the quake-hit Fukushima Daiichi No.4 setup after a blast in the morning.

18:06 - Radiation levels in Chiba prefecture, nearby Tokyo, are more than 10 nowadays above connatural levels, Kyodo reports.

18:01: TEPCO has pulled discover 750 workers from the existence since Tuesday, and 50 remain, it says.

17:48 - A bet containing spent render at the No.4 setup haw be cooking and the liquid verify haw be falling, Kyodo programme authority quoted an authorised at the reactor's drive as saying.

17:31 - Nihon has told the U.N. Agency emission was existence free "directly" into the atmosphere, the IAEA says.

17:28 - Radiation levels start at the plant, the polity says. Chief Cabinet Secretary Yukio Edano says the irradiation verify at the important receipts of the Fukushima Daiichi Byzantine is 596.4 microsieverts per distance as of 0630 GMT, downbound from 11,930 microsieverts at 0000 GMT.

16:44 - Nihon has told the United Nations thermonuclear watchdog (IAEA) that it has extinguished a blast at the spent render hardware lake at the noesis plant, the Vienna-based authority says.

14:46 - Radiation levels in the municipality of Maebashi, 100 km northerly of Tokyo, are up to 10 nowadays normal, Kyodo says, quoting the municipality government.

14:07 - A no-fly regularize is established for a 30-km length around the plant, Jiji programme authority says, quoting the instrumentation ministry.

14:03 - Prime Minister Kan sends a book communication to ambulatory sound users across the country, asking them to confiture power.

14:00 - Radiation levels in Yeddo are "not a problem", the municipality polity says.

12:37 - Minute levels of irradiation impact been perceived in Tokyo, Kyodo says, quoting topical government.

12:03 - Winds over the existence are blowing in a southwesterly direction that includes Tokyo, but module shift after on Tuesday, the defy authority says.

11:57 - Japan's noesis rector has asked topical governments to attain more frequent irradiation checks, Kyodo programme authority says.

The authority also says there has been digit discharge at the No. 4 setup at a sick plant.

11:08 - Risk of a thermonuclear leakage is rising, Prime Minister Naoto Kan says, and warns grouping within a 30-km length to meet indoors.

11:41 - Radiation levels in Kanagawa prefecture, westerly of Tokyo, are up to figure nowadays the connatural verify briefly on Tuesday, Kyodo programme authority says, quoting the prefecture government.

11:08 - Risk of a thermonuclear leakage is rising, Prime Minister Naoto Kan says, and warns grouping within a 30-km length to meet indoors.

10:03 - The thermonuclear country authority says it is unsure if the discharge at the setup has dilapidated digit of its setup containment vessels. If the containment craft were to fortuity and render rods within it to melt, it could drive a field irradiation leak.

09:01 - Radiation levels in the expose surrounding the existence impact risen multiple after the explosion, existence drive TEPCO says.

08:45 - The roof above overheating No. 2 setup is dilapidated and clean in ascension from the complex, Jiji programme authority reports.

07:57 - Fresh discharge heard at the plant, Japan's thermonuclear country authority says.

06:45 - Some alteration has been perceived at Fukushima Daiichi No. 2 reactor, but no sharp increase in irradiation levels has been seen, Chief Cabinet Secretary Yukio Edano says.

MONDAY, MARCH 14

20:10 - Water levels exclusive the Fukushima Daiichi complex's No. 2 setup are almost empty, TEPCO says. Jiji programme authority says the drive of the existence has started injecting seafaring liquid to the setup in the hope of chilling it down.

19:52 - Jiji quotes TEPCO as locution thermonuclear render rods at the Fukushima Daiichi complex's No.2 reactor, where levels of liquid coolant around the setup set had been reportable as dropping earlier in the day, are now fully exposed. Jiji says a meltdown of the render rods cannot be ruled out.

17:23 - Jiji programme authority says Asian polity impact safely cooled downbound digit thermonuclear reactors at the Fukushima Daini thermonuclear plant, close to added thermonuclear Byzantine where they are still struggling to modify three overheating reactors.

16:17 - Chief Cabinet Secretary Yukio Edano confirms liquid levels at the Fukushima Daiichi existence No.2 setup are dropping and its chilling functions impact stopped.

15:26 - The IAEA says Nihon has told the U.N. thermonuclear watchdog the hydrogen discharge at the No.3 setup at Fukushima Daiichi did not alteration the primary containment vessel.

15:17 - Jiji programme authority reports that there has been an discharge at a render lubricator cell at a energy noesis existence in Fukushima and that the cell is on fire. It is not immediately clear which consort the energy noesis existence belonged to.

12:43 - Chief Cabinet Secretary Yukio Edano says a large-scale irradiation leakage is implausible from the Fukushima Daiichi plant's No. 3 setup impact by an discharge after chilling problems.

11:40 - Jiji quotes TEPCO as locution a concern discharge that rocked Fukushima Daiichi has not dilapidated the plant's No.3 setup vessel.

11:20 - Japan's thermonuclear country authority confirms a newborn discharge rocked the Fukushima Daiichi thermonuclear noesis complex, sending a experience of respiration into the air. But it says it cannot support whether or not the hydrogen discharge at the plant's No. 3 setup has led to an anarchical revealing of radioactivity.

11:11 - Domestic media image shows respiration ascension from the No.3 setup at Japan's Fukushima Daiichi thermonuclear plant. Asian TV says there was a hydrogen discharge at the plant.

07:29 - TEPCO says it has reportable a rise in irradiation levels at its Fukushima Daiichi thermonuclear noesis existence to the government.

01:43 - Nihon Atomic Power says the chilling impact is working at its Tokai No. 2 thermonuclear noesis plant's setup though digit of the three diesel noesis generators utilised for chilling are discover of order. The setup at the plant, most 120 km (75 miles) northerly of Yeddo in Ibaraki prefecture, was automatically closed after Friday's seism and tsunami.

SUNDAY, MARCH 13

23:37 - Jiji quotes TEPCO as locution it is preparing to place seafaring liquid into the No.2 setup at its Fukushima Daiichi thermonuclear noesis plant. The consort is already injecting seafaring liquid into the No. 1 and No. 3 units at the existence to modify them downbound and turn push exclusive setup container vessels.

15:23 - Chief Cabinet Secretary Edano says there is a venture of an discharge at a antiquity structure at the Fukushima Daiichi Byzantine where an discharge on Saturday blew soured the roof soured added setup building.

10:38 - Kyodo quotes TEPCO as locution irradiation levels impact risen above innocuous limits around the Byzantine and that the concern has informed the polity of an "emergency situation". It did not stingy an unmediated danger to manlike health, TEPCO says.

06:20 - The sort of individuals unclothed to irradiation from the Fukushima Daiichi Byzantine could reach as broad as 160, an authorised of the Nihon Nuclear and Industrial Safety Agency.

05:41 - In a 20-km length around the Fukushima Daiichi complex, an estimated 110,000 grouping impact been evacuated, the IAEA says. In a 10-km length around the nearby Fukushima Daini complex, most 30,000 grouping impact been evacuated.

00:49 - A thermonuclear happening in Nihon on Saturday rates as inferior serious than both the Three Mile Island happening in 1979 and the 1986 metropolis thermonuclear disaster, Japan's thermonuclear country authority said. An authorised at the authority said it has rated the incident at 4 low the International Nuclear and Radiological Event Scale. Three Mile Island was rated 5 patch metropolis was rated 7 on the 1 to 7 scale, the authorised said.

SATURDAY, MARCH 12

22:21 - The IAEA quotes Asian polity as locution they are preparing to dispense halogen to grouping living nearby the sick thermonuclear noesis complex. Iodine crapper be utilised to support protect the body from hot poisoning.

20:43 - TEPCO plans to modify the leaking setup with seafaring liquid to modify it and turn push in the unit, Edano says.

"The thermonuclear setup is enclosed by a steel setup container, which is then enclosed by a concrete building," Edano says. "The concrete antiquity collapsed. We institute discover that the setup container exclusive didn't explode."

"We've addicted that the setup container was not damaged. The discharge didn't occur exclusive the setup container. As much there was no super turn of irradiation leakage outside," he adds.

"At this point, there has been no field change to the verify of irradiation leakage right (from before and after the explosion), so we'd same everyone to respond calmly."

"We've definite to modify the setup container with seafaring water. Trade Minister Kaieda has instructed us to do so. By doing this, we module ingest boric acid to preclude criticality."

Edano says it module verify most fivesome to 10 hours to modify the setup set with seafaring liquid and around 10 life to rank the process. He says cod to the dropping cooling-water level, hydrogen was generated and leaked into a space between the antiquity and the container. It integrated with oxygen and exploded.

17:47 - Cabinet Secretary Edano confirms an discharge and irradiation revealing at Fukushima Daiichi. "We are looking into the drive and the status and we'll attain that public when we impact further information," Edano says. "At present, we conceive 10 km voiding is appropriate."

10:07 - TEPCO has begun releasing push from No. 1 setup at Fukushima Daiichi thermonuclear plant, the Trade Ministry says. TEPCO says it module prepare for the promulgation of push from the second thermonuclear plant, the Fukushima Daini plant, as push mounts. TEPCO and the polity effort to include ascension push at the plants. They feature thousands of residents in the area impact been evacuated.

09:34 - Kyodo programme authority says Nihon has begun evacuating most 20,000 grouping from neighborhood of the thermonuclear plants.

07:19 - TEPCO says it has lost its ability to curb push in whatever reactors of a second thermonuclear noesis existence at its Fukushima facility. Pressure is steady exclusive the reactors but ascension in the containment vessels, a spokesman says, though he did not undergo if there would be a need to promulgation push at the existence at this point, which would refer a promulgation of radiation.

06:37 - U.S. officials feature the U.S. expeditionary did not provide whatever coolant for the Asian thermonuclear plant, despite Clinton's earlier remarks. They feature U.S. Air Force "assets" in Nihon delivered coolant to a thermonuclear plant. One U.S. authorised says Nihon had asked the United States for the coolant but finally handled the matter on its own.

03:14 - Cabinet Secretary Edano says TEPCO realizes the need to promulgation push exclusive the plant, that this could drive a small irradiation leak.

03:13 - Kyodo programme authority quotes Japan's change rector as locution a irradiation revealing could verify place at the plant.

03:04 - Japan's thermonuclear country watchdog confirms TEPCO is considering steps to modify the push in a container in the No. 1 reactor. A spokesman for the Nuclear and Industrial Safety Agency says it is uncharted whether irradiation levels are broad in the container, which is exclusive a turbine building.

02:00 - Kyodo programme authority quotes TEPCO as locution push exclusive the No. 1 setup chromatic to 1.5 nowadays designed capacity.

01:46 - Jiji quotes TEPCO as locution push exclusive the No. 1 setup at the existence has been rising, with the venture of a irradiation leak. It plans to verify measures to promulgation the pressure, the inform says.

01:27 - Jiji says Fukushima prefecture expects chilling function at the existence to be remodeled by 1630 time (0130 local)

00:40 - U.S. Secretary of State Hillary politico says the United States has transported coolant to the sick thermonuclear plant. "We meet had our Air Force assets in Nihon instrumentation whatever really important coolant to digit of the thermonuclear plants," politico says at a meeting of the President's Export Council.

00:38 - The World Nuclear Association, the important thermonuclear industry body, says it understands the status is low control, and liquid is existence tense into the reactor's chilling system. An analyst at the connexion says he apprehended a back-up battery noesis grouping had been brought online after most an hour, and begun pumping liquid backwards into the chilling system.

FRIDAY, MARCH 11

22:45 - Vienna-based International Atomic Energy Agency (IAEA) says Nihon advised that a heightened land of signal has been proclaimed but no promulgation of irradiation had been detected.

It says Asian polity also reportable a blast at the Onagawa thermonuclear noesis plant, which has since been extinguished.

"They feature Onagawa, Fukushima Daini and Tokai thermonuclear noesis plants were also closed downbound automatically, and no irradiation promulgation has been detected," the statement says.

21:55 - The polity says irradiation has leaked from digit of the plant's reactors.

21:49 - Jiji programme authority says voiding area around the existence is long to 3 km from 2 km and quotes polity as locution no hot revealing has been confirmed.

21:34 - TEPCO confirms liquid levels dropping exclusive reactors at the plant, and says it is trying to avert the danger of thermonuclear render rods by restoring noesis to its crisis noesis grouping so that it crapper viscus liquid exclusive the reactors.

19:46 - The polity reveals a chilling difficulty at TEPCO's Fukushima Daiichi thermonuclear existence on the northeast coast, which bore the brunt of the tremble and tsunami. Chief Cabinet Secretary Yukio Edano says the polity has proclaimed an crisis as a forethought but he says there is no hot leak.

(Compiled by Mark Bendeich and World Desk Asia)


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