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Four years ago in Japan
By Reuters -

A massive tsunami sweeps in to engulf a residential area after a powerful earthquake in Natori, Miyagi Prefecture in northeastern Japan, March 11, 2011. REUTERS/KYODO

Abandoned housing sites remain empty after being swept by tsunami in Sendai, March 12, 2011. REUTERS/Jo Yong-Hak

A boat is seen amid the rubble of Sendai, March 12, 2011. REUTERS/Jo Yong-Hak

A family photograph half buried in the mud in Rikuzentakata, March 13, 2011. REUTERS/Lee Jae-Won

A victim's hand sticks out among the rubble in Rikuzentakata, March 13, 2011. REUTERS/Toru Hanai

The body of a female patient lies dead in the hallways of a hospital in Minamisanriku town, March 14, 2011, REUTERS/Adrees Latif

A mother tries to talk to her daughter who has been isolated for signs of radiation after evacuating from the vicinity of Fukushima's nuclear plants, at a makeshift facility to screen, cleanse and isolate people with high radiation levels in Nihonmatsu, March 14, 2011. REUTERS/Yuriko Nakao

A survivor pushes his bicycle through remains of devastated town of Otsuchi, March 14, 2011. REUTERS/Damir Sagolj

A house lies damaged in a river going through Kesennuma City, March 15, 2011. REUTERS/Adrees Latif

Heavy snow falls on rubble and rescue workers at a devastated factory area hit in Sendai, March 16, 2011. REUTERS/Kim Kyung-Hoon

Vehicles sit atop a devastated home for elderly people in Yamada, Iwate Prefecture, March 28, 2011. REUTERS/Damir Sagolj

A piano is submerged in water in the area devastated by tsunami in Rikuzentakat, March 21, 2011. REUTERS/Damir Sagolj

A woman is being tested for possible nuclear radiation exposure at an evacuation center in Koriayama, Fukushima Prefecture, March 29, 2011. REUTERS/Kim Kyung-Hoon

Policemen carry the bodies of victims retrieved from the debris in Rikuzentakata, Iwate Prefecture,March 16, 2011. REUTERS/Adrees Latif

Ducks swim past a submerged vehicle after the earthquake and tsunami in Yamada town, Iwate Prefecture, March 24, 2011. REUTERS/Carlos Barria

Family members of victims of the magnitude 9.0 earthquake and tsunami stand next a coffin as more coffins arrive at a mass funeral in Kassenuma town, Miyagi prefecture March 26, 2011. REUTERS/Carlos Barria

A view shows cars and buildings outside Sendai in Miyagi Prefecture, March 19, 2011. REUTERS/Yegor Trubnikov

A car is seen partially submerged in an inundated rice field in Higashi-Matsushima, Miyagi Prefecture, March 28, 2011. REUTERS/Yuriko Nakao

Vehicles pass by an area destroyed by the tsunami, in Taro town, Iwate prefecture, March 29, 2011. REUTERS/Carlos Barria

A boy plays with a balloon at an evacuation center at a gymnasium in Kawamata, Fukushima Prefecture, March 14, 2011. REUTERS/Yuriko Nakao

Japan Maritime Self-Defense Force (JMSDF) personnel search for victims at sea in Rikuzentakata, Iwate prefecture, April 14, 2011. REUTERS/Toru Hanai

Photographs which were found in the rubble are hung at a collection center for those who are looking for their personal belongings in Natori, April 12, 2011. REUTERS/Kim Kyung-Hoon

A Suzuki APV and an Austin Mini (R) which were damaged by the March 11 earthquake and tsunami are seen in a rice paddy in Soma, Fukushima prefecture, May 11, 2011. REUTERS/Issei Kato

A heap of cars destroyed by the March 11earthquake and tsunami is seen at a devastated area in Rikuzentakata, August 14, 2011. REUTERS/Kim Kyung-Hoon

An evacuee watches a portable TV at an evacuation center on the eve of Japan's annual Buddhist ceremony Obon that welcomes back the spirits of the dead in Kesennuma, August 12, 2011. REUTERS/Kim Kyung-Hoon

A damaged car is seen in a cemetery at an area devastated by the March 11 earthquake and tsunami, in Watari, Miyagi prefecture, April 22, 2011. REUTERS/Toru Hanai

A cargo ship, which was swept ashore by the March 11 tsunami is seen in Kesennuma, Miyagi prefecture, September 7, 2011. REUTERS/Issei Kato

Members of the media and TEPCO employees, wearing protective suits and masks, stand near a banner reading "Decrease 0.01 mSv par a day for a person" inside the No. 5 reactor building at TEPCO's tsunami-crippled Fukushima Daiichi nuclear power plant in Fukushima prefecture, March 10, 2014. REUTERS/Toru Hanai

Big black plastic bags containing radiated soil, leaves and debris from the decontamination operation are dumped at a seaside near TEPCO's tsunami-crippled Fukushima Daiichi nuclear power plant, February 22, 2015. REUTERS/Toru Hanai

A wave approaches Miyako City from the Heigawa estuary in Iwate Prefecture after the magnitude 8.9 earthquake struck the area, March 11, 2011. REUTERS/Mainichi Shimbun

The oncoming tsunami strikes the coast in Natori City, Miyagi Prefecture, northeastern Japan, March 11, 2011. REUTERS/KYODO

A massive tsunami hits the coastal areas of Iwanuma, Miyagi Prefecture, northeastern Japan, March 11, 2011. REUTERS/KYODO

Sendai Airport is swept by a tsunami after an earthquake, in northeastern Japan, March 11, 2011. REUTERS/KYODO

Whirlpools are seen following a tsunami and earthquake in Iwaki city, Fukushima Prefecture, March 11, 2011. REUTERS/YOMIURI

Sendai Airport is flooded after a tsunami following an earthquake in Sendai, northeastern Japan, March 11, 2011. REUTERS/KYODO

Houses swept by a tsunami smoulder near Sendai Airport in Japan, March 11, 2011. REUTERS/KYODO

Houses swept out to sea burn following a tsunami and earthquake in Natori City in northeastern Japan, March 11, 2011. REUTERS/YOMIURI

Cars and airplanes swept by a tsunami are pictured among debris at Sendai Airport, northeastern Japan March 11, 2011. REUTERS/KYODO