Tag Archives: Fukushima

Ten years on, Japan mourns victims of earthquake and Fukushima disaster

By Eimi Yamamitsu

IWAKI, Japan (Reuters) – With a moment of silence, prayers and anti-nuclear protests, Japan on Thursday mourned about 20,000 victims of the massive earthquake and tsunami that struck Japan 10 years ago, destroying towns and triggering nuclear meltdowns in Fukushima.

Huge waves triggered by the 9.0-magnitude quake – one of the strongest on record – crashed into the northeastern coast, crippling the Fukushima Dai-ichi power plant and forcing more than 160,000 residents to flee as radiation spewed into the air.

The world’s worst nuclear disaster since Chernobyl and the tremor have left survivors struggling to overcome the grief of losing families and towns to the waves in a few frightening hours on the afternoon of March 11, 2011.

About 50 kilometers (31 miles) south from the plant, in the gritty coastal city of Iwaki, which has since become a hub for laborers working on nuclear decommissioning, restaurant owner Atsushi Niizuma prayed to his mother killed by the waves.

“I want to tell my mother that my children, who were all close to her, are doing well. I came here to thank her that our family is living safely,” said Niizuma, 47.

Before setting off for work, he quietly paid his respects at a stone monument at a seaside shrine with carvings of his mother’s name, Mitsuko, and 65 others who died in the disaster.

On the day of the earthquake, Mitsuko was looking after his children. The children rushed into a car but Mitsuko was swept away by the waves as she returned to the house to grab her belongings. It took a month to recover her body, Niizuma said.

The Akiba shrine has become a symbol of resilience for the survivors, as it was barely damaged by the tsunami while houses nearby were swept away or burned down.

About two dozen residents gathered with Niizuma to decorate it with paper cranes, flowers and yellow handkerchiefs with messages of hope sent by students from across the country.

“It was sleeting 10 years ago, and it was cold. The coldness always brought me back to the memory of what happened on the day,” said Hiroko Ishikawa, 62.

“But with my back soaking up the sun today, we are feeling more relaxed. It’s as if the sun is telling us that ‘It’s okay, why don’t you go talk with everyone who came back to visit their hometown?'”

REMEMBERING THE DEAD

At 2:46 p.m., the exact moment the earthquake struck a decade ago, Emperor Naruhito and his wife led a moment of silence to honor the dead in a commemorative ceremony in Tokyo. Silent prayers were held across the country.

Prime Minister Yoshihide Suga told the memorial ceremony that the loss of life was still impossible to contemplate.

“It is unbearable when I think of the feelings of all those who lost their loved ones and friends,” said Suga, dressed in a black suit.

At the ceremony attended by emperor and prime minister, the attendees wore masks and kept their distance, and did not sing along with the national anthem to prevent the spread of coronavirus.

In a joint statement, Suga and his U.S. counterpart Joe Biden said the two countries would continue to move forward shoulder-to-shoulder to finish the reconstruction of the region.

The Japanese government has spent about $300 billion (32.1 trillion yen) to rebuild the region, but areas around the Fukushima plant remain off-limits, worries about radiation levels linger and many who left have settled elsewhere.

Some 40,000 people are still displaced by the disaster.

Japan is again debating the role of nuclear power in its energy mix as the resource-poor country aims to achieve net carbon neutrality by 2050 to fight global warming. But an NHK public TV survey showed 85% of the public worries about nuclear accidents.

The work to decommission the wrecked Fukushima Dai-ichi plant, deal with contaminated water and solid waste, and make the area safe is immense, as critics say it could take up to a century to return the plant to a usable state.

About 5,000 workers pass through gates each day to work on dismantling the crippled plant, which still has about 880 tonnes of melted fuel debris in its reactors.

The mass demonstrations against nuclear power seen in the wake of 3/11 have faded, but distrust lingers. Some protesters held an antinuclear rally in front of the headquarters of plant operator Tokyo Electric Power on Thursday night.

In Fukushima, fireworks lit up night sky to connect to the souls of the victims and pray for a bright future.

“Watching the fireworks, I felt like we’re taking another new step towards recovery,” said Hiroshi Yokoyama, 56, a school teacher from the Fukushima town of Namie who lost his parents and home to the tsunami.

“I don’t think it will ever go back to the way it used to be… but I am looking forward to what sort of new approaches there will be to revitalize the town.”

(Reporting by Eimi Yamamitsu, Elaine Lies, Kim Kyung Hoon, Irene Wang, Sakura Murakami, Antoni Slodkowski, Ju-min Park and Linda Sieg; Editing by Gerry Doyle and Hugh Lawson)

Eight years on, water woes threaten Fukushima cleanup

The reactor units No.1 to 4 are seen over storage tanks for radioactive water at Tokyo Electric Power Co's (TEPCO) tsunami-crippled Fukushima Daiichi nuclear power plant in Okuma town, Fukushima prefecture, Japan February 18, 2019. Picture taken February 18, 2019. REUTERS/Issei Kato

By Kiyoshi Takenaka

OKUMA, Japan (Reuters) – Eight years after the Fukushima nuclear crisis, a fresh obstacle threatens to undermine the massive clean-up: 1 million tons of contaminated water must be stored, possibly for years, at the power plant.

Last year, Tokyo Electric Power Co said a system meant to purify contaminated water had failed to remove dangerous radioactive contaminants.

That means most of that water – stored in 1,000 tanks around the plant – will need to be reprocessed before it is released into the ocean, the most likely scenario for disposal.

Reprocessing could take nearly two years and divert personnel and energy from dismantling the tsunami-wrecked reactors, a project that will take up to 40 years.

It is unclear how much that would delay decommissioning. But any delay could be pricey; the government estimated in 2016 that the total cost of plant dismantling, decontamination of affected areas, and compensation, would amount to 21.5 trillion yen ($192.5 billion), roughly 20 percent of the country’s annual budget.

Tepco is already running out of space to store treated water. And should another big quake strike, experts say tanks could crack, unleashing tainted liquid and washing highly radioactive debris into the ocean.

Fishermen struggling to win back the confidence of consumers are vehemently opposed to releasing reprocessed water – deemed largely harmless by Japan’s nuclear watchdog, the Nuclear Regulation Authority (NRA) – into the ocean.

“That would destroy what we’ve been building over the past eight years,” said Tetsu Nozaki, head of the Fukushima Prefectural Federation of Fisheries Co-operative Associations. Last year’s catch was just 15 percent of pre-crisis levels, partly because of consumer reluctance to eat fish caught off Fukushima.

Workers conduct crane operation training to remove nuclear fuels at the operation floor inside No.3 reactor building at Tokyo Electric Power Co's (TEPCO) tsunami-crippled Fukushima Daiichi nuclear power plant in Okuma town, Fukushima prefecture, Japan February 18, 2019. Picture taken February 18, 2019. REUTERS/Issei Kato

Workers conduct crane operation training to remove nuclear fuels at the operation floor inside No.3 reactor building at Tokyo Electric Power Co’s (TEPCO) tsunami-crippled Fukushima Daiichi nuclear power plant in Okuma town, Fukushima prefecture, Japan February 18, 2019. Picture taken February 18, 2019. REUTERS/Issei Kato

SLOW PROGRESS

On a visit to the wrecked Fukushima Dai-ichi plant last month, huge cranes hovered over the four reactor buildings that hug the coast. Workers could be seen atop the No. 3 building getting equipment ready to lift spent fuel rods out of a storage pool, a process that could start next month.

In most areas around the plant, workers no longer need to wear face masks and full body suits to protect against radiation. Only the reactor buildings or other restricted areas require special equipment.

Fanning out across the plant’s property are enough tanks to fill 400 Olympic-sized swimming pools. Machines called Advanced Liquid Processing Systems, or ALPS, had treated the water inside them.

Tepco said the equipment could remove all radionuclides except tritium, a relatively harmless hydrogen isotope that is hard to separate from water. Tritium-laced water is released into the environment at nuclear sites around the world.

But after newspaper reports last year questioned the effectiveness of ALPS-processed water, Tepco acknowledged that strontium-90 and other radioactive elements remained in many of the tanks.

Tepco said the problems occurred because absorbent materials in the equipment had not been changed frequently enough.

The utility has promised to re-purify the water if the government decides that releasing it into the ocean is the best solution. It is the cheapest of five options a government task force considered in 2016; others included evaporation and burial.

Tepco and the government are now waiting for another panel of experts to issue recommendations. The head of the panel declined an interview request. No deadline has been set.

NRA chief Toyoshi Fuketa believes ocean release after dilution is the only feasible way to handle the water problem. He has warned that postponing the decision indefinitely could derail the decommissioning project.

STORING INDEFINITELY

Another option is to store the water for decades in enormous tanks normally used for crude oil. The tanks have been tested for durability, said Yasuro Kawai, a plant engineer and a member of Citizens’ Commission on Nuclear Energy, a group advocating abandoning nuclear energy.

Each tank holds 100,000 tons, so 10 such tanks could store the roughly 1 million tons of water processed by ALPS so far, he said.

The commission proposes holding the tritium-laced water, which has a half life of 12.3 years, in tanks for 123 years. After that, it will be one thousandth as radioactive as it was when it went into storage.

Although experts caution that tanks would be vulnerable to major quakes, Japan’s trade and industry minister, Hiroshige Seko, said the committee would consider them anyway.

“Long-term storage … has an upside as radiation levels come down while it is in storage. But there is a risk of leakage,” Seko told Reuters. “It is difficult to hold the water indefinitely, so the panel will also look into how it should be disposed of eventually.”

Space is also a problem, said Akira Ono, Tepco’s chief decommissioning officer. By 2020, the utility will expand tank storage capacity by 10 percent to 1.37 million tons, and about 95 percent of total capacity will probably be used by the end of that year, he said.

“Tanks are now being built on flat, elevated spots in stable locations,” Ono said. But such ideal space is getting scarce, he added.

Many local residents hope Tepco will just keep storing the water. If it does get released into the ocean, “everyone would sink into depression,” said fishing trawler captain Koichi Matsumoto.

Fukushima was once popular with surfers. But young people in the area do not go surfing any more because they’ve been repeatedly warned about suspected radioactivity in the water, said surf shop owner Yuichiro Kobayashi.

Releasing treated water from the plant “could end up chasing the next generation of children away from the sea as well,” he said.

Ono says dealing with contaminated water is one of many complex issues involved in decommissioning.

A year ago, when he took over leading the effort, it felt like the project had just “entered the trailhead,” he said. “Now, it feels like we’re really starting to climb.”

(Reporting by Kiyoshi Takenaka; Editing by Malcolm Foster and Gerry Doyle)

Tepco’s ‘ice wall’ fails to freeze Fukushima’s toxic water buildup

By Aaron Sheldrick and Malcolm Foster

OKUMA, Japan (Reuters) – A costly “ice wall” is failing to keep groundwater from seeping into the stricken Fukushima Dai-ichi nuclear plant, data from operator Tokyo Electric Power Co shows, preventing it from removing radioactive melted fuel at the site seven years after the disaster.

When the ice wall was announced in 2013, Tepco assured skeptics that it would limit the flow of groundwater into the plant’s basements, where it mixes with highly radioactive debris from the site’s reactors, to “nearly nothing.”

However, since the ice wall became fully operational at the end of August, an average of 141 metric tonnes a day of water has seeped into the reactor and turbine areas, more than the average of 132 metric tonnes a day during the prior nine months, a Reuters analysis of the Tepco data showed.

The groundwater seepage has delayed Tepco’s clean-up at the site and may undermine the entire decommissioning process for the plant, which was battered by a tsunami seven years ago this Sunday. Waves knocked out power and triggered meltdowns at three of the site’s six reactors that spewed radiation, forcing 160,000 residents to flee, many of whom have not returned to this once-fertile coast.

Though called an ice wall, Tepco has attempted to create something more like a frozen soil barrier.

Using 34.5 billion yen ($324 million) in public funds, Tepco sunk about 1,500 tubes filled with brine to a depth of 30 meters (100 feet) in a 1.5-kilometre (1-mile) perimeter around four of the plant’s reactors. It then cools the brine to minus 30 degrees Celsius (minus 22 Fahrenheit).

The aim is to freeze the soil into a solid mass that blocks groundwater flowing from the hills west of the plant to the coast.

However, the continuing seepage has created vast amounts of toxic water that Tepco must pump out, decontaminate and store in tanks at Fukushima that now number 1,000, holding 1 million tonnes. It says it will run out of space by early 2021.

“I believe the ice wall was ‘oversold’ in that it would solve all the release and storage concerns,” said Dale Klein, the former chairman of the U.S. Nuclear Regulatory Commission and the head of an external committee advising Tepco on safety issues.

“The hydrology of the Fukushima site is very complicated and thus the exact water flow is hard to predict,” he said, “especially during heavy rains.”

TYPHOON

The water inflows often fluctuate with rainfall. The dry month of January averaged 83 tons a day, Tepco data showed.

But when a typhoon struck during the last week of October, 866 tons a day poured into the reactors.

Overall, Tepco says a combination of drains, pumps and the ice wall has cut water flows by three-quarters, from 490 tons a day during the December 2015 to February 2016 period to an average of 110 tons a day for December 2017 to February 2018.

It is hard to measure exactly how much the ice wall is contributing, Tepco officials say, but based on computer analysis the utility estimates the barrier is reducing water flows by about 95 tonnes a day compared to two years ago, before the barrier was operating.

“Our assessment is that the ice wall has been effective,” said Naohiro Masuda, Tepco’s chief decommissioning officer, adding that rain falling within the ice wall perimeter contributed to surging volumes. “We now believe we have a system in place to manage the water level.”

However, a government-commissioned panel on Wednesday offered a mixed assessment of the ice wall, saying it was partially effective but more steps were needed.

Controlling the groundwater seepage using the ice wall has been central to Japan’s program to show it had the Fukushima decommissioning in hand.

The barrier was announced just days before Tokyo won the bid to host the 2020 Summer Olympics and Prime Minister Shinzo Abe declared that Fukushima was “under control” in his final pitch to the International Olympic Committee.

In addition to the building costs, the ice wall needs an estimated 44 million kilowatt hours of electricity a year to run, enough to power about 15,000 typical Japanese homes.

NO MORE SPACE

Meanwhile, Tepco must decide how to cope with the growing volume of water stored on site.

The purification process removes 62 radioactive elements from the contaminated water but it leaves tritium, a mildly radioactive element that is difficult to separate from water. Not considered harmful in low doses, tritium is released into oceans and rivers by nuclear plants around the world at various national standard levels.

But local residents, particularly fishermen, oppose ocean releases because they fear it will keep consumers from buying Fukushima products. Many countries, including South Korea and China, still have restrictions on produce from Fukushima and neighboring areas.

A government-commissioned task force is examining five options for disposing of the tritium-laced water, including ocean releases, though no decision has been made.

Ken Buesseler, a radiochemist at the Woods Hole Oceanographic Institution in the United States, suggests that Tepco should open the tanks to external inspections to see if the water is safe.

“From the public’s viewpoint, I think they’d want a bit of independent confirmation,” Buesseler said. “It’s no harder and a lot cheaper than building an ice wall.”

(Reporting by Malcolm Foster and Aaron Sheldrick; Editing by Christian Schmollinger)

Japan’s Tepco gets slapped with new U.S. lawsuit over Fukushima

FILE PHOTO: Logo of the Tokyo Electric Power Co Holdings (TEPCO) is seen on helmets at TEPCO's South Yokohama Thermal Power Station in Yokohama, Japan July 18, 2017. REUTERS/Issei Kato/File Photo

TOKYO (Reuters) – Tokyo Electric Power Co Holdings said on Thursday it has been hit with another lawsuit filed in a U.S. court seeking $5 billion for compensation over the 2011 Fukushima nuclear disaster, the second filed against the utility in a U.S. court.

The suit filed by 157 individuals is seeking that amount to set up a compensation fund for the costs of medical tests and treatment they say they need after efforts to support the recovery from the world’s worst nuclear disaster since Chernobyl in 1986.

The utility, known as Tepco, is being sued regarding improper design, construction and maintenance, claiming compensation for physical, mental and economic damages, the company said in a statement.

A multi-plaintiff lawsuit was filed on Aug. 18, 2017, against Tokyo Electric Power Co and other parties in the Southern District Court in California, the legal information group Justia said on its website.

Tepco has been hit with more lawsuits than in any previous Japanese contamination suit over the meltdowns of three reactors at its Fukushima Daiichi plant north of Tokyo after a massive earthquake and tsunami in March 2011.

Radiation forced 160,000 people from their homes, many never to return, and destroyed businesses, fisheries and agriculture.

In June, a federal appeals court cleared the way for a group of U.S. military personnel to file a suit against Tepco over radiation exposure that they say occurred during recovery efforts on board the USS Ronald Reagan.

Tepco did not make clear whether the two suits involved the same plaintiffs but Justia has two cases listed.

Shareholders of Tepco are suing the utility’s executives for a record 5.5 trillion yen ($67.4 billion) in compensation, in a long standing case.

The company’s former chairman and other executives of the company appeared in court in June to answer charges of professional negligence, in the first criminal case after the meltdowns at the plant. They all pleaded not guilty.

The criminal and civil legal cases do not threaten financial ruin for Tepco, which is backstopped by Japanese taxpayers. The company faces nearly $150 million of costs to decommission the Fukushima plant and clean up the surrounding area, according to the latest government estimate.

Tepco shares fell nearly 1 percent on Thursday, in line with many of Japan’s other utilities, before the company announced the lawsuit.

(Reporting by Aaron Sheldrick)

Six years after Fukushima nuclear disaster, residents trickle back to deserted towns

Ukedo Elementary School Principal, Chieko Oyama, visits the school damaged by the March 11, 2011 tsunami, near Tokyo Electric Power Co's (TEPCO) tsunami-crippled Fukushima Daiichi nuclear power plant in Namie town, Fukushima prefecture, Japan, March 1, 2017. REUTERS/Toru Hanai

By Kiyoshi Takenaka and Teppei Kasai

NAMIE, Fukushima (Reuters) – A truck occasionally whizzes past the darkened shops with cracked walls and fallen signs that line the main street of Japan’s mostly deserted seaside town of Namie.

Workers repair a damaged home nearby, and about 60 employees busily prepare for the return of former residents in the largely untouched town hall. Not far away, two wild boars stick their snouts in someone’s yard, snuffling for food.

Signs of life are returning nearly six years after panicked residents fled radiation spewed by the nearby Fukushima Daiichi nuclear power plant, when it was struck by an earthquake and tsunami.

Still, only several hundred of the original 21,500 residents plan to return in the first wave, estimates Hidezo Sato, a former seed merchant who helped draw up a blueprint to rebuild the town.

“As a person who used to sell seeds for a living, I believe now is a time to sow seeds” for rebuilding, said Sato, 71. “Harvesting is far away. But I hope I can manage to help bring about fruition.”

Since November, people who registered have been allowed to spend nights in the town, but residents will not need permission to stay round the clock after Japan lifts evacuation orders for parts of Namie and three other towns at the end of March.

Just 4 km (2.5 miles) away from the wrecked plant, Namie is the closest area cleared for the return of residents since the disaster of March 11, 2011.

But the town will never be the same, as radiation contamination has left a big area off limits. And it may never be inhabitable.

More than half – 53 percent – of former residents have decided not to return, a government poll showed last September. They cited concerns over radiation and the safety of the nuclear plant, which is being dismantled in an arduous, 40-year effort.

Fukushima “hot zone” returnees – http://fingfx.thomsonreuters.com/gfx/rngs/JAPAN-FUKUSHIMA/0100401R03R/JAPAN-FUKUSHIMA.jpg

OLD FOLKS

More than three-quarters of those aged 29 or less do not intend to return, which means old people could form the bulk of the town’s population in a future largely devoid of children.

“Young people will not go back,” said Yasuo Fujita, a former Namie resident who runs a restaurant in Tokyo, the capital. “There will neither be jobs nor education for children.”

Fujita said he did not want to live near a possible storage site for contaminated soil, now being systematically removed.

Radiation levels at Namie town hall stood at 0.07 microsieverts per hour on Feb. 28, little different from the rest of Japan.

But in the nearby town of Tomioka, a dosimeter read 1.48 microsieverts an hour, nearly 30 times higher than in downtown Tokyo, underscoring lingering radiation hotspots.

For the towns’ evacuation orders to be lifted, radiation must fall below 20 millisieverts per year. They must also have functioning utilities and telecoms systems, besides basic health, elderly care and postal services.

HUNTING BOAR

Namie, which used to have six grade schools and three middle schools, plans to eventually open a joint elementary-junior high school. So children will need to commute to schools elsewhere initially.

A hospital opens later this month, staffed with one full-time and several part-time doctors.

Reconstruction efforts may create some jobs. The town’s mayor, Tamotsu Baba, hopes to draw research and robotics firms.

Prospects for business are not exactly bright in the short term, but lumber company president Munehiro Asada said he restarted his factory in the town to help drive its recovery.

“Sales barely reach a tenth of what they used to be,” he said. “But running the factory is my priority. If no one returns, the town will just disappear.”

Shoichiro Sakamoto, 69, has an unusual job: hunting wild boars encroaching on residential areas in nearby Tomioka. His 13-man squad catches the animals in a trap before finishing them off with air rifles.

“Wild boars in this town are not scared of people these days,” he said. “They stare squarely at us as if saying, ‘What in the world are you doing?’ It’s like our town has fallen under wild boars’ control.”

Some former Namie residents say the evacuation orders should remain until radiation levels recede and the dismantling of the ruined nuclear plant has advanced.

But it is now or never for his town, Mayor Baba believes.

“Six long years have passed. If the evacuation is prolonged further, people’s hearts will snap,” he said. “The town could go completely out of existence.”

(Reporting by Kiyoshi Takenaka, Teppei Kasai and Toru Hanai: Editing by Malcolm Foster and Clarence Fernandez)

Highest levels of radiation reported by TEPCO from Fukushima power plant

A worker puts up new logo of TEPCO Holdings and Tokyo Electric Power Company (TEPCO) Group on the wall ahead of the transition to a holding company system through a compan

By Kami Klein

Tokyo Electric Power Company (TEPCO) announced the highest documented radiation levels ever recorded in reactor 2 of the damaged Fukushima  No. 1 power plant.  Based on its analysis of measurements and pictures taken by a remote controlled sensor and camera instrument, radiation levels recorded were the highest ever documented since the triple core meltdown in March 2011. TEPCO also reported close to a 3 foot hole in the metal grating under the pressure vessel of reactor 2 of the damaged Fukushima No. 1 power plant.

According to the Japan Times the power plant has reached a maximum of 530 sieverts per hour.  At 530 sieverts, a person could die from even the briefest exposure.  This highlights the difficulties that lie ahead for TEPCO and the Japanese Government as they try to figure out a way to dismantle all three reactors that were damaged by the March, 2011 9.0 earthquake and giant tsunami that killed almost 16,000 people.

Officials had never taken into account for the “unimaginable” radiation levels that are being seen.  Experts say that 1 sievert could lead to infertility, loss of hair and cataracts.  Cancer risks increase substantially with any radiation levels above the 100 millisieverts or 1 sievert mark.

In a report by the Washington Post, TEPCO recorded radiation near the reactor core using a stick-like robot equipped with a camera and a device designed to measure radiation levels and has suggested that some melted fuel escaped.  Officials state that this was the first time this kind of device has been able to get into this part of the reactor, which explains the unprecedented amount of radiation recorded.  TEPCO said that at this level of radiation, a robot would only operate for less than two hours before it was destroyed.

If deposits that have been seen on portions of the grating are proven to be melted fuel, it would be the first time they have found even a trace of any sign of the fuel rods since the core meltdowns occurred. Levels of radiation are too high to check the actual condition of the fuel, which they believe has melted through their pressure vessels and is pooled at the bottom of their containment units.  This fuel MUST be discovered and removed before the plants can be decommissioned.

Reuters reports that TEPCO has been developing robots that can swim under water and navigate obstacles in damaged tunnels and piping to search for the melted fuel rods.  But as soon as the robots get close to the reactors, the radiation destroys their wiring and renders them useless.  TEPCO does plan to send this robot into Reactor 1 but are still unsure regarding Reactor 2 because of the very intense radiation levels.

Officials still state that these levels may not actually be rising but because they have not been tested so closely to the reactor, they are just now getting a better idea of the true levels recorded. TEPCO does report a 30% margin of error in the tests.

The effects of the radiation on the rest of the world have been in constant discussion and arguments among government officials and environmental scientists.  One year ago, PBS reported that more than 80 percent of the radioactivity from the damaged reactors ended up in the Pacific, far more than ever reached the ocean from Chernobyl or Three Mile Island.  A small fraction is currently on the seafloor, but the rest was swept up by the Kuroshio current, a western Pacific version of the Gulf Stream, and carried out to sea.  Recently, radioactive contamination has been documented near British Columbia and California.

 

‘Hearts are in pieces’ five years after tsunami hits Japan

RIKUZENTAKATA, Japan (Reuters) – Japan on Friday mourned the thousands who lost their lives in a massive earthquake and tsunami five years ago that turned towns to matchwood and triggered the world’s worst nuclear disaster since Chernobyl in 1986.

The nine-magnitude quake struck offshore on a chilly Friday, sparking huge black waves along a vast swathe of coastline and killing nearly 20,000 people.

The tsunami crippled the Fukushima Dai-ichi nuclear plant, where meltdowns in three reactors spewed radiation over a wide area of the countryside, contaminating water, food and air.

Naoto Kan, the prime minister at the time, has said he feared he would have to evacuate the Japanese capital Tokyo and that Japan’s very existence could have been in peril.

More than 160,000 people were evacuated from nearby towns and some 10 percent still live in temporary housing across Fukushima prefecture. Most have settled outside their hometowns and have begun new lives.

Some areas remain no-go zones due to high radiation. Demonstrators in front of plant operator Tokyo Electric Power Co (Tepco) bore signs saying, “Give me back my hometown!”

At cemeteries along the devastated coastline, in front of buildings hollowed out by the wave, and on beaches, families gathered to offer flowers and incense, bowing their heads and wiping away tears.

Flags at central government buildings were at half-mast, some draped in black.

In coastal Rikuzentakata, which was flattened by a wave as much as 56 feet high and lost seven percent of its population along with its entire downtown, pain remains strong.

“The reality is that we still feel the scars here, and there are still many struggling to restart their lives,” said 65-year-old Yashichi Yanashita, a retired city hall official. The four-story city hall was inundated by the wave.

A MOMENT OF SILENCE

At 2:46 p.m., the moment the quake hit, bells rang out in downtown Tokyo and people around the nation bowed their heads in a moment of silence. All the trains on Tokyo’s vast underground paused for a minute.

Prime Minister Shinzo Abe and Emperor Akihito bowed in front of a stage laden with white and yellow flowers in a Tokyo ceremony attended by 1,200 people, including survivors from the stricken area.

“Father, that day, I called your mobile phone so many times, but you didn’t answer … ” said Masakiyo Kimura, who lost his parents to the wave in the city of Onagawa.

“Our house was completely torn from its foundation. Nothing remained except for the pair of matching teacups father and mother used, lying on top of each other.”

Billions of dollars in government spending have helped stricken communities rise from the ruins, including elevating the earth to protect them from future waves and cleaning radiation-contaminated land, but much remains to be done for thousands still languishing in barracks-like temporary housing.

“I get the feeling that the number of people who don’t know what to do, who aren’t even trying, is increasing,” said Kazuo Sato, a former fisherman from Rikuzentakata. “Their hearts are in pieces.”

RECONSTRUCTION CONTINUES

Government spending on reconstruction is set to dip from the start of the new fiscal year in April. But Abe pledged continued support.

“Many people are still leading uncomfortable lives in the affected areas. There are many who cannot return to their beloved homes because of the accident at the nuclear power plant,” he said at the ceremony.

“We commit ourselves to … providing care for their minds and bodies, forming new local communities and supporting industrial development of the affected areas.”

Full recovery will take still longer.

“Infrastructure is recovering, hearts are not. I thought time would take care of things,” said Eiki Kumagai, a Rikuzentakata volunteer fireman who lost 51 colleagues, many killed as they guided others to safety.

“I keep seeing the faces of those who died… There’s so much regret, I can’t express it.”

(Reporting by Elaine Lies, Editing by Linda Sieg, Nick Macfie and)

Fukushima’s ground zero: No place for man or robot

(Reuters) – The robots sent in to find highly radioactive fuel at Fukushima’s nuclear reactors have “died”; a subterranean “ice wall” around the crippled plant meant to stop groundwater from becoming contaminated has yet to be finished. And authorities still don’t know how to dispose of highly radioactive water stored in an ever mounting number of tanks around the site.

Five years ago, one of the worst earthquakes in history triggered a 10-metre high tsunami that crashed into the Fukushima Daiichi nuclear power station causing multiple meltdowns. Nearly 19,000 people were killed or left missing and 160,000 lost their homes and livelihoods.

Today, the radiation at the Fukushima plant is still so powerful it has proven impossible to get into its bowels to find and remove the extremely dangerous blobs of melted fuel rods.

The plant’s operator, Tokyo Electric Power Co (Tepco), has made some progress, such as removing hundreds of spent fuel roads in one damaged building. But the technology needed to establish the location of the melted fuel rods in the other three reactors at the plant has not been developed.

“It is extremely difficult to access the inside of the nuclear plant,” Naohiro Masuda, Tepco’s head of decommissioning said in an interview. “The biggest obstacle is the radiation.”

The fuel rods melted through their containment vessels in the reactors, and no one knows exactly where they are now. This part of the plant is so dangerous to humans, Tepco has been developing robots, which can swim under water and negotiate obstacles in damaged tunnels and piping to search for the melted fuel rods.

But as soon as they get close to the reactors, the radiation destroys their wiring and renders them useless, causing long delays, Masuda said.

Each robot has to be custom-built for each building.“It takes two years to develop a single-function robot,” Masuda said.

IRRADIATED WATER

Tepco, which was fiercely criticized for its handling of the disaster, says conditions at the Fukushima power station, site of the worst nuclear disaster since Chernobyl in Ukraine 30 years ago, have improved dramatically. Radiation levels in many places at the site are now as low as those in Tokyo.

More than 8,000 workers are at the plant at any one time, according to officials on a recent tour. Traffic is constant as they spread across the site, removing debris, building storage tanks, laying piping and preparing to dismantle parts of the plant.

Much of the work involves pumping a steady torrent of water into the wrecked and highly radiated reactors to cool them down. Afterward, the radiated water is then pumped out of the plant and stored in tanks that are proliferating around the site.

What to do with the nearly million tonnes of radioactive water is one of the biggest challenges, said Akira Ono, the site manager. Ono said he is “deeply worried” the storage tanks will leak radioactive water in the sea – as they have done several times before – prompting strong criticism for the government.

The utility has so far failed to get the backing of local fishermen to release water it has treated into the ocean.

Ono estimates that Tepco has completed around 10 percent of the work to clear the site up – the decommissioning process could take 30 to 40 years. But until the company locates the fuel, it won’t be able to assess progress and final costs, experts say.

The much touted use of X-ray like muon rays has yielded little information about the location of the melted fuel and the last robot inserted into one of the reactors sent only grainy images before breaking down.

ICE WALL

Tepco is building the world’s biggest ice wall to keep  groundwater from flowing into the basements of the damaged reactors and getting contaminated.

First suggested in 2013 and strongly backed by the government, the wall was completed in February, after months of delays and questions surrounding its effectiveness. Later this year, Tepco plans to pump water into the wall – which looks a bit like the piping behind a refrigerator – to start the freezing process.

Stopping the ground water intrusion into the plant is critical, said Arnie Gunderson, a former nuclear engineer.

“The reactors continue to bleed radiation into the ground water and thence into the Pacific Ocean,” Gunderson said. “When Tepco finally stops the groundwater, that will be the end of the beginning.”

While he would not rule out the possibility that small amounts of radiation are reaching the ocean, Masuda, the head of decommissioning, said the leaks have ended after the company built a wall along the shoreline near the reactors whose depth goes to below the seabed.

“I am not about to say that it is absolutely zero, but because of this wall the amount of release has dramatically dropped,” he said.

(Story corrects spelling of names in fifth paragraph to …Naohiro… not Naohero, in twelfth paragraph to Akira… not Akiro, in fourth-last paragraph to Arnie… not Artie, adds dropped word in first paragraph.)

(Reporting by Aaron Sheldrick and Minami Funakoshi Editing by Bill Tarrant)

Japan’s nuclear refugees face bleak return five years after Fukushima

NARAHA (Reuters) – Tokuo Hayakawa carries a dosimeter around with him at his 600-year-old temple in Naraha, the first town in the Fukushima “exclusion zone” to fully reopen since Japan’s March 2011 catastrophe. Badges declaring “No to nuclear power” adorn his black Buddhist robe.

Hayakawa is one of the few residents to return to this agricultural town since it began welcoming back nuclear refugees five months ago.

The town, at the edge of a 12.5-mile evacuation zone around the crippled Fukushima Daiichi plant, was supposed to be a model of reconstruction.

Five years ago, one of the biggest earthquakes in history shook the country’s northeast. The 33-foot tsunami it spawned smashed into the power plant on the Fukushima coastline triggering a meltdown and forcing nearby towns to evacuate. The disaster killed over 19,000 people across Japan and caused an estimated 16.9 trillion yen ($150 billion) in damages.

Only 440 of Naraha’s pre-disaster population 8,042 have returned – nearly 70 percent of them over 60.

“This region will definitely go extinct,” said the 76-year-old Hayakawa.

He says he can’t grow food because he fears the rice paddies are still contaminated. Large plastic bags filled with radioactive topsoil and detritus dot the abandoned fields.

With few rituals to perform at the temple, Hayakawa devotes his energies campaigning against nuclear power in Japan. Its 54 reactors supplied over 30 percent of the nation’s energy needs before the disaster.

Today, only three units are back in operation after a long shutdown following the nuclear meltdown in Fukushima. Others are looking to restart.

“I can’t tell my grandson to be my heir,” said Hayakawa, pointing at a photo of his now-teenaged grandson entering the temple in a full protective suit after the disaster. “Reviving this town is impossible,” he said. “I came back to see it to its death.”

That is bound to disappoint Japan’s Prime Minister Shinzo Abe. Rebuilding Naraha and other towns in the devastated northeast, he says, is crucial to reviving Japan.

Tokyo pledged 26.3 trillion ($232 billion) over five years to rebuild the disaster area and will allocate another 6 trillion for the next five years.

VANISHING TOWN

More than 160,000 people were evacuated from towns around the Daiichi nuclear plant. Around 10 percent still live in temporary housing across Fukushima prefecture. Most have settled outside their hometowns and have begun new lives.

In Naraha, two restaurants, a supermarket and a post office, housed in prefabricated shacks, make up the town’s main shopping center. The restaurants close at 3 p.m.

No children were in sight at Naraha’s main park overlooking the Pacific Ocean on a recent morning. Several elderly residents were at the boardwalk gazing at hundreds of bags stuffed with radioactive waste.

In fact, the bags are a common sight around town: in the woods, by the ocean, on abandoned rice fields.

Little feels normal in Naraha. Many homes damaged in the disaster have been abandoned. Most of the town’s population consists of workers. They are helping to shut down Tokyo Electric Power Co’s Daiichi reactors or working on decontamination projects around town.

Other workers are building a new sea wall, 8.7 meters high, along a nearly 2 km stretch of Naraha’s coast, similar to other sea walls under construction in the northeast.

A local golf course has been turned into dormitories for workers. Some families have rented their houses to workers.

“Naraha is a workers’ town now,” said Kiyoe Matsumoto, 63, a member of the town council, adding that her children and grandchildren have no plans to come home.

RADIATION LEVELS

The town’s future depends on young people returning, residents say. But only 12 below the age of 30 have returned as worries about radiation linger.

Radiation levels in Naraha ranged from 0.07 to 0.49 microsieverts per hour in January, or 0.61-4.3 millisieverts per year. That compares with the government’s goal of one millisievert a year and the 3 millisieverts a year the average person in the United States is exposed to annually from natural background radiation.

The significant drop in atmospheric radiation allowed the government to lift the evacuation order last Sept. 5 – “the clock that had been stopped began ticking again,” Japan’s Reconstruction Agency said on its website.

“It is hoped that the reconstruction of Naraha would be a model case for residents returning to fully evacuated towns,” the agency statement said.

Prime Minister Shinzo Abe visited the town a month after that and repeated one of his favorite slogans: “Without reconstruction of Fukushima, there’s no reconstruction of Japan’s northeast. Without the reconstruction of the northeast, there’s no revival of Japan.”

But with few people coming back, there is little meaning in what the reconstruction department in Naraha does, said one town hall official who requested anonymity. “I don’t know why (Abe) came,” he said.

Back at his Buddhist temple, part of which he has turned into an office for his anti-nuclear campaign, Hayakawa called the idea Naraha could be a model of reconstruction “a big fat lie”.

“There’s no reconstructing and no returning to how it used to be before (March 11). The government knows this, too. A ‘model case’? That’s just words.”

($1 = 113.1100 yen)

(Editing by Bill Tarrant)