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TEPCO neglected seismograph failure for more than six months, failed to record the earthquake of March 13 at Fukushima Daiichi Unit 3

February 22, 2021

The Tokyo Electric Power Company (TEPCO) announced on Wednesday that two seismographs installed in the reactor building of the Unit 3 reactor at the Fukushima Daiichi Nuclear Power Plant had failed but had been left unrepaired for more than half a year, so they were unable to record data from a seismic intensity 6-weak earthquake that occurred late at night on the 13th of this month.

The water level in the reactor containment vessel dropped by more than 30 centimeters at the Fukushima Daiichi Nuclear Power Plant Units 1 and 3, possibly due to the magnitude 6-weak earthquake.

 The explanation was given by TEPCO when it reported on the effects of the earthquake at a Nuclear Regulation Authority meeting. TEPCO made no mention of the seismograph failure in its press conference after the quake or in its public documents, and had not announced it before that.

 Akira Ono, chief executive officer of the Fukushima Daiichi Nuclear Decommissioning Promotion Company, apologized at the review meeting, saying, “We missed a chance to get valuable data and we regret it.

 According to TEPCO, seismographs were installed in March 2020, one on the operation floor and one on the first floor, both on the top five floors of the Unit 3 reactor building, and the one on the first floor broke down in July, four months after it was installed, when it was submerged in water due to rain, and the other broke down in October of the same year due to another cause.

 At a press conference on the evening of the 22nd, a TEPCO spokesperson said, “We had planned to install seismographs with countermeasures. The seismograph in the Unit 3 reactor was “installed on a trial basis” to study the earthquake resistance of the building where a hydrogen explosion occurred during the accident, he explained.

 At the Fukushima Daiichi Nuclear Power Plant, seismographs were installed on the basement floor of the reactor buildings of Units 1-6, but the equipment in Units 1-4, which were flooded by the tsunami, is not working. (Kenta Onozawa) https://www.tokyo-np.co.jp/article/87498?fbclid=IwAR10pYQZCCKlLhFL8juxyOLZMvOCVTaiP7kQt1C0B46KSxj91KtREIEezP8

February 25, 2021 Posted by | Fukushima 2021 | , , | Leave a comment

Water level drops at Daiichi Nuclear Power Plant Units 1 and 3

February 19, 2021

The Tokyo Electric Power Company (TEPCO) has announced that the water level inside the containment vessels of the Unit 1 and Unit 3 reactors at the Fukushima Daiichi Nuclear Power Plant, which are filled with water to cool down the melted down nuclear fuel, is dropping.
There is a possibility that a broken part of the containment vessel expanded after the earthquake on the 13th of this month, increasing the amount of water leaking out, but there has been no noticeable change in the values of monitoring posts, etc., and there is no impact on the outside.

According to the Tokyo Electric Power Company (TEPCO), at around 11:00 p.m. on the 18th, it was confirmed that the water level in the containment vessel of the Unit 1 reactor, which is used to cool down the melted down nuclear fuel, had dropped.
TEPCO confirmed the data and found that the water level has been declining since the 15th of this month in the Unit 1 reactor and since the 17th in the Unit 3 reactor.
The water level in the Unit 1 reactor is estimated to have dropped by 40 to 70 centimeters, and in the Unit 3 reactor by about 30 centimeters.
However, the thermometers installed at the bottom of the reactors do not show any rise in temperature, there is no noticeable change in the radiation level inside the containment vessel, and there is no abnormality in the values of the monitoring posts installed at the site boundary. There is no problem with the cooling of the nuclear fuel and no external impact.
The containment vessel was broken during the accident at the nuclear power plant, and a certain amount of cooling water that is poured into the vessel usually leaks out, but the earthquake on the 13th of this month may have widened the damaged area and increased the amount that leaked out.
In the towns of Okuma and Futaba, where the Fukushima Daiichi Nuclear Power Plant is located, a tremor of lower 6 on the Japanese intensity scale was observed.
If the water level continues to drop, TEPCO is considering increasing the water injection rate, which is currently set at 3 cubic meters per hour.

https://www3.nhk.or.jp/lnews/fukushima/20210219/6050013511.html?fbclid=IwAR0CjCLPZXz2hBtGGcV4DghnfenN5vssaY4zj-XGsOh7SeX_gFqtiVuaEqc

February 21, 2021 Posted by | Fukushima 2021 | , , , | Leave a comment

At the nuclear power plant in Fukushima found a leak of radioactive water

February 14, 2021

A radioactive water leak was discovered at the Fukushima nuclear power plant. It is reported by RIA Novosti citing a press release from TEPCO (Tokyo Electric Power Company).

TEPCO specialists found out that due to the earthquake in northeast Japan, a small amount of water poured out of the pools for storing spent nuclear fuel at various units of the Fukushima-1 and Fukushima-2 nuclear power plants.

Representatives of the company said that about 160 milliliters of water were spilled at the first power unit of the Fukushima-2 nuclear power plant, and another 1.4 liters spilled from another pool. They assured that this incident should not affect the cooling of the spent fuel. Local media also reported that about 600 milliliters of water spilled out at the fifth power unit of the emergency nuclear power plant “Fukushima-1”, and 1.6 liters of liquid at the sixth. Another 600 milliliters were missing in the common pool for the two power units.

It is noted that the spilled water does not pose a threat to the environment, since its volumes are too small, and the content of radioactive substances in it is insignificant.

Earlier it was reported that in northeast Japan happened powerful earthquake. The magnitude of the earthquake was 7.1, the epicenter was recorded in the area of ​​Fukushima prefecture. The number of victims of the disaster exceeded 100 people.

February 21, 2021 Posted by | Fukushima 2021 | , , | Leave a comment

Tremors continue in northeast Japan

February 14, 2021

People in northeastern Japan remain vigilant as several tremors have followed the magnitude 7.3 earthquake that struck late on Saturday night.

The Meteorological Agency warns that jolts as strong as the initial one could occur over the next week or so.

The initial quake registered six-plus on the Japanese scale of zero to seven in Miyagi and Fukushima prefectures.

The agency estimates that the focus was off the coast of Fukushima Prefecture, at a depth of 55 kilometers. The quake did not trigger any tsunami.

Jolts are continuing off the coast of the prefecture.

As of 6 p.m. on Sunday, the agency had reported one quake with an intensity of four, two with an intensity of three, 10 with an intensity of two, and 22 with an intensity of one.

There are reports of landslides and damaged buildings.

The agency says people in Miyagi and Fukushima prefectures should be on the alert for more landslides, as an approaching low-pressure system off the coast may bring strong winds and heavy rain.

https://www3.nhk.or.jp/nhkworld/en/news/20210214_53/

February 14, 2021 Posted by | Fukushima 2021 | , , , | Leave a comment

Powerful magnitude 7.3 earthquake jolts Fukushima area

(Slight) leak from the spent fuel pool of the reactor #1 of Fukushima Daini, nothing said about Fukushima Daiichi yet. But as usual Tepco is never very trustworthy to forward vital information.

February 13, 2021

A powerful magnitude 7.3 earthquake, which measured a strong 6 on the Japanese seismic intensity scale — the second-highest level — jolted Miyagi and Fukushima prefectures in the Tohoku region late Saturday night. No tsunami warning was issued.

Local authorities in Miyagi and Fukushima prefectures reported a total of at least 20 people injured.

Nationwide, at least 950,000 homes were without power as of midnight, top government spokesman Katsunobu Kato said at a news conference. Kato added later that several power plants were offline.

The quake, which was also felt in Tokyo, where it registered a 4 on the Japanese scale, struck at around 11:08 p.m., according to the Meteorological Agency. The epicenter was off the coast of Fukushima, about 220 kilometers (135 miles) north of Tokyo. Its focus was estimated to be at a depth of about 60 kilometers.

At a news conference early Sunday morning, a Meteorological Agency official said aftershocks of up to a strong 6 on the Japanese scale could occur for at least a week. The official said Saturday’s quake was believed to be an aftershock of the Great East Japan Earthquake that struck the same region on March 11, 2011.

“Because (the 2011 quake) was an enormous one with a magnitude of 9.0, it’s not surprising to have an aftershock of this scale 10 years later,” said Kenji Satake, a professor at the University of Tokyo’s Earthquake Research Institute.

The quake registered a strong 6 in the southern part of Miyagi, and in the Nakadori central and Hamadori coastal regions of Fukushima, the agency said.

Power outages were reported in parts of Fukushima, Miyagi, Iwate, and Tochigi prefectures, according to media reports. Tokyo Electric Power Company Holdings reported blackouts across several prefectures as of early Sunday morning.

No abnormalities have been found at the Fukushima Nos. 1 and 2 nuclear power plants, according to Tokyo Electric Power. The same was true for Japan Atomic Power Co.’s inactive Tokai No. 2 nuclear power plant in the village of Tokai in Ibaraki Prefecture and Tohoku Electric Power Co.’s Onagawa nuclear plant in Miyagi Prefecture, according to their operators.

Following the quake, JR East temporarily halted operations of its Tohoku, Joetsu and Hokuriku shinkansen lines. Power outages occurred on some sections. A landslide had covered a section of the Joban Expressway in Soma, Fukushima Prefecture, officials said, but no vehicles were found to be trapped.

Horizontal shaking lasted for a few minutes inside a traditional inn in Minamisoma, Fukushima Prefecture, with plates for food scattered in its dining room.

“The initial jolt felt more powerful than the one I experienced in the Great East Japan Earthquake,” said Tomoko Kobayashi, 68, who works at the inn. “I wondered if it would end.”

After the 7.1 quake, many smaller earthquakes with magnitudes between 3 and 5 occurred off Fukushima.

Prime Minister Yoshihide Suga immediately directed government agencies to assess damage, rescue any potential victims, work with municipalities and provide necessary information about any evacuation plans and damage as soon as possible. The government was setting up a task force to examine the quake.

Defense Minister Nobuo Kishi directed the Self-Defense Forces to gather information on the scope of the damage and be prepared to respond immediately.

The quake, which comes less than a month before the 10th anniversary of the Great East Japan Earthquake, registered a 4 on the Japanese scale as far north as Aomori Prefecture and as far west as Shizuoka Prefecture. It was the strongest quake in the region since April 7 that year, the meteorology agency said.

https://www.japantimes.co.jp/news/2021/02/14/national/earthquake-fukushima/

February 14, 2021 Posted by | Fukushima 2021 | , , , | Leave a comment

No Damages to Nuclear Plants after 6.8 Magnitude Earthquake ‘according’ to TEPCO and Trade Ministry

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No Damages To Nuclear Power Plants Reported After Earthquake In Japan – Trade Ministry
June 18, 2019
No damages have been reported so far on Japan’s nuclear power plants after the north of the country got hit by a 6.8 magnitude earthquake on Tuesday, the Japanese Ministry of Economy, Trade and Industry said
MOSCOW (UrduPoint News / Sputnik – 18th June, 2019) No damages have been reported so far on Japan’s nuclear power plants after the north of the country got hit by a 6.8 magnitude earthquake on Tuesday, the Japanese Ministry of Economy, Trade and Industry said.
“There is no information of damage inflicted on the following Nuclear Power Stations (all in shutdown or in decommissioning). Tokyo Electric Power: Kashiwazaki-Kariwa Nuclear Power Plant / Fukushima Daiichi Nuclear Power Plant / Fukushima Daini Nuclear Power Plant, Tohoku Electric Power: Higashidori Nuclear Power Plant / Onagawa Nuclear Power Plant,” the ministry said on Twitter.
 
No impact from the earthquake on primary TEPCO power facilities
June 19, 2019
At around 10:22 PM on June 18th, a 6.7 magnitude earthquake struck off the coast of Yamagata Prefecture, Japan.
Field patrols at the Kashiwazaki-Kariwa, Fukushima Daiichi and Fukushima Daini nuclear power stations did not find any abnormalities with equipment at any of the stations. And, no abnormalities were found in monitoring post or plant parameter data.
There was also no impact from this earthquake on other primary TEPCO power facilities, such as hydroelectric power facilities and transmission facilities in Niigata Prefecture.

June 20, 2019 Posted by | Japan | , | Leave a comment

Hokkaido’s Tomari NPP using emergency generators after powerful M6.7 earthquake

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Tomari nuclear plant using emergency generators

Aug. 6, 2018
Japan’s nuclear regulatory body says the Tomari nuclear power plant in Hokkaido is using emergency generators to cool fuel after the region was hit by a powerful earthquake.
The plant’s operator Hokkaido Electric Power Company says all 3 channels from outside power sources were cut off about 20 minutes after the quake struck early Thursday.
The plant’s 3 reactors are all currently offline, with a total of 1,527 fuel assemblies in its storage pools.
Following the quake, 6 emergency diesel-powered generators automatically switched on to cool the nuclear fuel. No changes in storage pool water levels or temperature have been reported.
The Nuclear Regulation Authority and Hokkaido Electric say it is not yet clear when outside power sources will be restored, with all thermal power plants in Hokkaido currently shut down.
The emergency generators will be able to keep the Tomari plant running for at least 7 days, based on diesel fuel supplies stored on its premises.
They added that the earthquake did not seem to cause any irregularities in key plant facilities and radiation monitoring posts have shown no change.

Hokkaido nuclear plant on backup power after quake, reviving memories of Fukushima disaster

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Tomari Nuclear Power Station in the village of Tomari, Hokkaido, is seen in 2015. The plant is running on emergency power after a powerful earthquake knocked out electricity in Hokkaido on Thursday
September 6, 2018
A nuclear power station in Hokkaido is relying on emergency backup power after a powerful earthquake knocked out electricity on the northern island Thursday, offering a stark reminder of the 2011 Fukushima disaster.
The three-reactor Tomari nuclear plant, operated by Hokkaido Electric Power Co. and in shutdown since the aftermath of the Fukushima disaster, lost power after a magnitude 6.7 quake hit the island in the early hours, the government said.
The plant’s fuel rods are being cooled with emergency power supplied by diesel generators, Chief Cabinet Secretary Yoshihide Suga told reporters Thursday.
There were no radiation irregularities at the plant, Suga said, citing the operator.
The atomic regulator said the diesel generators have enough fuel to last seven days.
Hokkaido Electric has shut down all fossil fuel plants, cutting power to all its nearly 3 million customers, a spokesman said.
Industry minister Hiroshige Seko has instructed Hokkaido Electric to restart its biggest coal plant after the station was tripped by the earthquake.
The blackout shut down Hokkaido’s New Chitose Airport, a popular gateway to the island, making it the second major airport to be knocked out in the country in two days after a typhoon swamped Kansai International Airport, the nation’s third biggest.
The March 11, 2011, magnitude 9 earthquake that struck off the northern Honshu coast set off a massive tsunami that devastated a wide swath of the Pacific coastline and left nearly 20,000 dead.
The quake knocked out power to the Fukushima No. 1 nuclear power plant, and the tsunami swamped diesel generators placed low in reactor buildings, leading to a series of explosions and meltdowns in the world’s worst nuclear disaster for 25 years.
The crisis led to the shutdown of the country’s nuclear industry, once the world’s third biggest. Seven reactors have come back online after a protracted relicensing process.
The majority of Japanese remain opposed to nuclear power after Fukushima highlighted failings in regulation and operational procedures in the industry.

September 6, 2018 Posted by | Japan | , , , | Leave a comment

Strong earthquake shakes Osaka: Officials in neighboring Fukui Prefecture say all 15 nuclear reactors are still functioning

Strong earthquake shakes Osaka
All but 1 or 2 of these are supposedly shut down since 3-11.
Just before 8 am local time a magnitude 6.1 earthquake struck northern Osaka. It’s categorized as a six-minus on a scale of zero to seven on Japan’s seismic intensity scale.
No tsunami warning has been issued.
Hyogo, Kyoto, Shiga, Nara are also affected.
At least 5 people were injured and have been transferred to hospital.
Officials in neighboring Fukui Prefecture say they’ve checked all the 15 nuclear reactors there, both online and offline, and no problems have been found.
Shinkansen bullet train service has been halted.
Local train services in the region have also been affected.
The 3 airports in the region temporarily halted operations but have just resumed.
Some areas in Osaka are reportedly experiencing power shortages.
A viewer has posted a photo showing water gushing from a cracked pipe along the Yodo River in Osaka Prefecture in the city of Takatsuki.
He said the water is still flowing from the pipe.
Senior government officials are gathering for an emergency meeting at the Prime Minister’s office.
Japanese Self-Defense Force fighter jets and helicopters are heading to the area to gather information.
 
At least three people killed, several injured after strong earthquake rattles Osaka area
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Elementary school students in Ikeda, Osaka Prefecture, evacuate to the school yard Monday morning after a magnitude 5.9 quake hit the Kansai region.
 
OSAKA – One of the most powerful earthquakes to rock the Kansai region in decades struck Osaka and neighboring prefectures Monday morning, leaving at least three people dead and a number of others injured.
The earthquake, measuring magnitude 6.1 and a lower 6 on the Japanese seismic scale of 7, hit at 7:58 a.m. and occurred at a depth of about 13 km in the northern part of Osaka Prefecture, the Meteorological Agency said. No tsunami warning was issued.
A 9-year-old girl in Takatsuki, Osaka Prefecture, was confirmed dead after being struck when a wall surrounding a swimming pool fell on her as she walked by. Also in the prefecture, a man in his 80s from Ibaraki died after he was crushed by a bookshelf at his home, according to the Osaka Prefectural Government.
 
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People get off a train in Osaka’s Kita Ward Monday morning after West Japan Railway Co. and other railways suspended operations following a major earthquake.
 
NHK also said an 80-year-old man in the city of Osaka died after being hit by a falling wall, while a number of other people were also feared dead.
A number of injuries and dozens of fires were reported from Osaka, Hyogo, Kyoto and Mie prefectures, according to local police and city authorities.
A water pipe under a road in Takatsuki burst and flooded the area, according to police.
Disaster management minister Hachiro Okonogi said people were reportedly trapped under a collapsed building. Authorities were working to confirm the details.
According to police and rescuers, two people were trapped in an elevator at a train station in Yamatokoriyama, Nara Prefecture. More people were believed to be stranded in elevators in apartment buildings, they said.
The weather agency issued a warning against landslides, adding that people should be cautious about possible aftershocks for a few days.
Chief Cabinet Secretary Yoshihide Suga, speaking in Tokyo, said the government was not aware of any reports of damage to nuclear power plants near Osaka, such as the Takahama and Oi plants in Fukui Prefecture.
Suga said that, following instructions issued by Prime Minister Shinzo Abe, the government set up an emergency task force to gather information about the situation. The government vowed to “do its utmost” to extend disaster-relief efforts and help with reconstruction, as well as provide the public with relevant information.
There is no immediate plan at the moment to open evacuation centers or supply food or drinking water to affected areas, Suga said, adding that the government has not so far received any request for Self-Defense Forces personnel to be dispatched.
The top government spokesman also urged residents in the hardest-hit areas, including the cities of Takatsuki, Hirakata and Ibaraki in Osaka Prefecture, to “stay calm” and be vigilant against “strong” aftershocks, which he said could be as strong as a lower 6 on the Japanese scale, over the next week or so.
A senior government official, meanwhile, expressed guarded optimism that damage due to Monday morning’s quake is unlikely to too widespread, citing what appears to be the “localized” nature of the quake and swift power recovery.
More than 60 bullet trains were canceled during the morning, and some expressways were also closed. Both Kansai International and Kobe airport temporarily closed but resumed operations after confirming that there was no structural damage to the facilities.
In Osaka Prefecture, power was restored after the quake left about 170,800 homes and buildings without electricity for several hours.
Osaka Gas said it turned off gas supplies to 108,000 households. Kansai Electric Power Co., meanwhile, said its nuclear plants in Fukui Prefecture were operating normally.
No abnormalities were reported at the Takahama, Mihama and Oi nuclear plants in the prefecture, according to Kepco.
The quake left many commuters stranded at stations or on streets during the morning rush hour after it disrupted shinkansen and other rail operations in western and central Japan.
The Tokaido Shinkansen Line connecting Osaka with Tokyo came to a halt in both directions shortly after the quake. As of 10 a.m., the section between Nagoya and Osaka remained closed.
A Japan Times staff member aboard a Tokyo-bound shinkansen said his train had stopped shortly before reaching Kakegawa Station in Shizuoka Prefecture.
Onboard announcements said safety checks following a quake-linked power outage between Tokyo and Odawara stations had led to the Tokyo-bound stoppage.
In a quake with an intensity of lower 6, it is difficult to remain standing and unsecured furniture may move or topple over, according to the meteorological agency.
Although its magnitude was relatively weak, the quake is believed to have triggered high-intensity tremors because of its shallow epicenter.
In the deadly 1995 Great Hanshin Earthquake in the region, which had a magnitude of 7.3 and recorded 7 on the seismic intensity scale, 6,434 people were killed.
It was the latest in a string of quakes over the last few days. A magnitude 4.6 quake hit southern Gunma Prefecture on Sunday, and a magnitude 4.5 temblor struck Chiba Prefecture on Saturday.

June 18, 2018 Posted by | Japan | , , | 1 Comment

5.8-Magnitude Quake Strikes Off Coast of Japan’s Fukushima Prefecture, Near Ongoing Fukushima Nuclear Disaster Site

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An earthquake with an initial magnitude of 5.8 hit northeast of Tokyo on Japan’s main island of Honshu on Thursday, the Pacific Tsunami Warning Center (PTWC) reported.
 
The quake was measured at a depth of 33 km (20 miles) about 79 km (49 miles) east-northeast of Iwaki on Honshu.
 
The temblor, which measured 4 on the Japanese seismic scale which peaks at 7, struck at a latitude of 37.3 degrees north and a longitude of 141.6 degrees east at 9:11 a.m. local time (0000 GMT).
 
The Japan Meteorological Agency (JMA) said the quake struck at a depth of 40 km.
 
Fukushima police also said there were no immediate reports of damage or injuries.
 
No fresh damage to the crippled nuclear power plant there was reported and there was no risk of a tsunami, officials said.
 
“We have found no (new) abnormality so far” at the Fukushima Daiichi nuclear plant said a spokesman at Tokyo Electric Power Co., the operator. Tokyo Electric is working to clean up and dismantle the reactors in a process that is expected to take decades.
 
A 9.0-magnitude earthquake in March 2011 triggered a massive and deadly tsunami, which smashed into the power station and sparked the world’s worst atomic accident since Chernobyl in 1986.
 
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July 21, 2017 Posted by | Fukushima 2017 | , | Leave a comment

Magnitude 5.6 Earthquake in Fukushima

This earthquake lasted very long…..

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http://www.jma.go.jp/en/quake/#explain

February 28, 2017 Posted by | Fukushima 2017 | | Leave a comment

Puddles Found in Reactor Buildings at Fukushima Daini Plant

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Fukushima Daini

Following a powerful quake that hit northeastern Japan in the early morning on Nov. 22, 2016. The utility said Nov. 24 that puddles in three of the four reactor buildings at the idled Fukushima Daini nuclear power plant may have formed from water that splashed out of spent-fuel pools during the quake.

http://english.kyodonews.jp/photos/2016/11/445699.html

November 24, 2016 Posted by | Fukushima 2016 | , | Leave a comment

Tsunami Evacuation Hindered by Traffic in Iwaki

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Some residents who attempted to drive to higher ground after tsunami warnings in northeastern Japan early Tuesday found themselves caught in traffic.

An official of Iwaki City, Fukushima Prefecture, says a main road from the coastal district to inland areas was filled with cars apparently trying to evacuate.

The official says he saw many cars carrying entire families and that the traffic congestion was unusual for that time of day. He says the atmosphere was tense, as the residents were apparently reminded of the March 2011 tsunami.

He called on residents not to use their cars if they are able to evacuate on foot, as part of the road is designated as an area that could be submerged in the event of a tsunami.

In Ishinomaki City, Miyagi Prefecture, more than 100 people evacuated to a park on higher ground.

But a narrow road leading to the park soon became jammed.

Some drivers parked their cars on the roadside, hindering others from getting by. Traffic was backed up for a long way as a result.

The city has been asking residents to evacuate on foot in principle.

http://www3.nhk.or.jp/nhkworld/en/news/20161122_45/

November 23, 2016 Posted by | Fukushima 2016 | , , , | Leave a comment

Leaks Unlikely, “presumes” Tepco

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Naohiro Masuda, left, president of Fukushima Daiichi Decontamination & Decommissioning Engineering Co., speaks at the podium in a news conference at the Tokyo Electric Power Co.’s head office on Nov. 22.

Tokyo Electric Power Co. said radioactive water likely did not leak from its stricken Fukushima No. 1 nuclear plant following the morning earthquake that spawned a tsunami on Nov. 22. TEPCO declared that everything was ok at Fukushima Daiichi before even to be able to go inspect the facilities.

TEPCO officials said the company manually shut down equipment that was transferring contaminated water from reactor buildings after the magnitude-7.4 earthquake struck off the coast of Fukushima Prefecture. The measure was taken because water being transferred could have spilled out if a pipe in the system was fractured in the quake, and because they would be unable to check the system for leaks.

Naohiro Masuda, president of Fukushima Daiichi Decontamination & Decommissioning Engineering Co., TEPCO’s in-house organization, explained during a news conference at the utility’s head office in Tokyo why the company halted operations of the water transfer facility: “The biggest risk is a tsunami causing contaminated water that has accumulated (in the reactor buildings) to leak and pollute the environment.”

After the Japan Meteorological Agency issued a tsunami warning at 6:02 a.m., the company ordered workers in lower areas of the plant to evacuate to higher ground. The workers stayed out of the lower areas as the tsunami warning lasted for hours. They have been unable to check for possible leaks around the reactor buildings and the turbine buildings near the sea.

It is a bit inappropriate that we’ve been unable to do so,” Masuda said. “That’s why we suspended the transfer facility. We think that no water will leak now.”

Groundwater mixing with contaminated water in damaged reactor buildings has been a serious problem at the plant since the nuclear disaster unfolded in 2011.

TEPCO also reported that pumps to cool water in the spent nuclear fuel pool at the No. 3 reactor building of the Fukushima No. 2 nuclear power plant shut down after the quake. The company said this was an automatic mechanism that kicked in after the water level changed in the tank that adjusts water conditions in the pool. “It is a result of the fact that the automatic suspension device worked normally,” Masuda said. The pumps were later restarted.

In the evening of 11/22/2016, Tepco announced the radiation monitoring post in the sea has been suspended due to the quake. The post is situated at the end of the breakwater of Fukushima plant port. They cannot monitor the radioactive substance spreading to the Pacific with this monitoring post out of order.

TEPCO  declared “everything is safe” soon after the quake. They may have visually confirmed nothing large and significant happened such as a vent tower collapsing or larger building damage,  but they were unable to go in to inspect to actually confirm nothing was damaged, to check for damage in more detail and to check every system now in place at the plant could easily take an entire day.

TEPCO’s prompt claim of no damage after the earthquake at the disaster site, as always was not done after inspections would have confirmed no damage.

http://www.asahi.com/ajw/articles/AJ201611220063.html

http://www.tepco.co.jp/press/mail/2016/1339057_8708.html

November 22, 2016 Posted by | Fukushima 2016 | , , , | Leave a comment

Fukushima Radiation Measuring on Nov. 22, After the 6.9 Magnitude Earthquake

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Following the November 22, 2016 earthquake striking at 5:59am, the Tarachine Mothers’ Radiation Lab in Iwaki city Fukushima kept measuring ambiant radiation every hour for the sake of precaution.

According to TEPCO, cooling to the spent nuclear fuel pool for the No. 3 reactor at the Fukushima Daini nuclear plant resumed at 7:47 am. It had stopped after the earthquakes this morning.

Radiation measurement 6:30 am on November 22nd, Izumigaoka, Iwaki city, Fukushima Prefecture, Japan, indoor 0.05µSv/h measured by PA-1000 Environmental Radiation Monitor Radi.

Radiation measurement 7:00 am on November 22nd, Izumigaoka, Iwaki city, Fukushima Prefecture, Japan, indoor 0.05µSv/h measured by PA-1000 Environmental Radiation Monitor Radi.

Radiation measurement 7:30 am on November 22nd, Izumigaoka, Iwaki city, Fukushima Prefecture, Japan, indoor 0.05µSv/h measured by PA-1000 Environmental Radiation Monitor Radi.

Radiation measurement 8:00 am on November 22nd, Izumigaoka, Iwaki City, Fukushima Prefecture, Japan, indoor 0.05 μSv/h, outdoor 0.08μSv/h measured by PA-1000 Environmental Radiation Monitor Radi.

Radiation measurement 8:30 am on November 22nd, Izumigaoka, Iwaki City, Fukushima Prefecture, Japan, indoor 0.05 μSv/h, outdoor 0.09μSv/h measured by PA-1000 Environmental Radiation Monitor Radi.

Radiation measurement 9:00 am on November 22nd, Izumigaoka, Iwaki City, Fukushima Prefecture, Japan, indoor 0.05 μSv/h, outdoor 0.09μSv/h measured by PA-1000 Environmental Radiation Monitor Radi.

Radiation measurement 10:00 am on November 22nd, Hanabatake-cho,Onahama, Iwaki City, Fukushima Prefecture, Japan, indoor 0.06 μSv/h, outdoor 0.08μSv/h measured by ALOKA γSURVEY METER TCS-172 

Radiation measurement 11:00am on November 22nd, Hanabatake-cho,Onahama, Iwaki City, Fukushima Prefecture, Japan, indoor 0.06 μSv/h, outdoor 0.08μSv/h measured by ALOKA γSURVEY METER TCS-172 

Radiation measurement 12:00am on November 22nd, Hanabatake-cho,Onahama, Iwaki City, Fukushima Prefecture, Japan, indoor 0.06 μSv/h, outdoor 0.08μSv/h measured by ALOKA γSURVEY METER TCS-172 

Radiation measurement 15:00am on November 22nd, Hanabatake-cho,Onahama, Iwaki City, Fukushima Prefecture, Japan, indoor 0.06 μSv/h, outdoor 0.07μSv/h measured by ALOKA γSURVEY METER TCS-172 

Radiation measurement 23:15pm on November 22nd, Izumigaoka, Iwaki City, Fukushima Prefecture, Japan, indoor 0.05 μSv/h measured by PA-1000 Environmental Radiation Monitor Radi.

Source : Tarachine, Mothers’ Radiation Lab, Iwaki city, Fukushima Prefecture

November 22, 2016 Posted by | Fukushima 2016 | , , , | Leave a comment

Magnitude 6.9 Earthquake Strikes Off Japanese Coast, Tsunami Warning

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An earthquake with a preliminary magnitude of 7.3 hit northern Japan on Tuesday, the Japan Meteorological Agency said, generating a tsunami that hit the nation’s northern Pacific coast.

The U.S. Geological Survey initially put Tuesday’s quake at a magnitude of 7.3 but down graded it to 6.9.

The earthquake, which was felt in Tokyo, was centered off the coast of Fukushima prefecture at a depth of about 10 km (6 miles) and struck at 5:59 a.m. (2059 GMT) the agency said.

USGS said that it was a shallow quake, at about 10 kilometers, which tended to cause more shaking damage and had greater potential to cause a tsunami.

“The good news here is that the direction the fault was moving is a slight lateral slip. When the faults move laterally they do not create the vertical movement associated with large tsunamis,” the U.S. agency said.

A 60 cm (2 foot) tsunami had been observed at Iwaki city’s Onahama Port and a 90 cm (3 foot) tsunami at Soma Port soon after, public broadcaster NHK said. The region is the same that was devastated by a tsunami following a massive earthquake in 2011. A tsunami warning of up to 3 meters (10 feet) has been issued.

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Japan’s chief government spokesman Yoshihide Suga said that a government taskforce had been established to deal with the quake and tsunami, and called on people in affected areas to evacuate, according to media outlet NHK.

NHK also reported that water could be seen moving bath and forth in Onahama Port and that tide levels were rising in some areas on Japan’s eastern coast. Television footage showed ships moving out to sea from Fukushima harbors as tsunami warning signals wailed.

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Tokyo Electric Power, known as Tepco, said on its website that no damage from the quake has been confirmed at any of its power plants, although there have been blackouts in some areas. Tepco’s Fukushima Daiichi nuclear plant caused Japan’s worst nuclear disaster when it was knocked out by the 2011 tsunami.

Tohoku Electric Power said there was no damage to its Onagawa nuclear plant, while the Kyodo news agency reported there were no irregularities at the Tokai Daini nuclear plant in Ibaraki Prefecture.

Earthquakes are common in Japan, one of the world’s most seismically active areas. Japan accounts for about 20 percent of the world’s earthquakes of magnitude 6 or greater.

The March 11, 2011, quake was magnitude 9, the strongest quake in Japan on record. The massive tsunami it triggered caused world’s worst nuclear crisis since Chernobyl a quarter of a century earlier.

An Iwaki city fire dept official said there was smoke or fire at Kureha’s research center in a petrochemical complex in Iwaki city at 6:17 a.m., but it was extinguished at 6:40 a.m. Other details were not clear, he said, adding that no other major damage in the city has been reported at the moment.

One hotel in Ofunato, badly hit by the 2011 quake, told guests to stay in the facility, which is on high ground.

All nuclear plants on the coast threatened by the tsunami are shut down in the wake of the 2011 Fukushima disaster. Only two reactors are operating in Japan, both in the southwest of the country. Even when in shutdown nuclear plants need cooling systems operating to keep spent fuel cool.

At Fukushima Daiichi, the plant workers are reporting they felt shaken even in the seismic isolation building. Most of the workers have not come to the plant for today yet. The situation is still under investigation. No further information yet.

At Fukushima Daini,  Tepco said that its water-cooling system for spent fuel at reactor 3 had stopped working at 6:10AM but that there was enough water in the pool to keep the fuel cool, posing no immediate danger. Tepco rebooted the coolant system of SFP 3 of Fukushima DAINI at 7:47AM (JST).

http://www.jma.go.jp/en/quake/20161122061144495-220559.html

http://www.cnbc.com/2016/11/21/magnitude-73-earthquake-hits-japan-usgs-says.html

https://twitter.com/nhk_seikatsu/status/800825947507212288

https://www.pref.fukushima.lg.jp/sec/16025c/genan10.html

http://www3.nhk.or.jp/news/html/20161122/k10010779181000.html

 

 

 

November 22, 2016 Posted by | Fukushima 2016 | , , | Leave a comment