Big quake hits northern Japan, leaving 9 dead, 30 missing

Residents watch a road damaged by an earthquake in Sapporo, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake shook Japan's northernmost main island of Hokkaido early Thursday, causing landslides that crushed homes, knocking out power across the island. (Hiroki Yamauchi/Kyodo News via AP)
Japan Ground Self-Defense Force personnel head to the site of a landslide following a strong earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Several people were reported missing in the nearby the town, where a massive landslide engulfed homes in an avalanche of soil, rocks and timber. (Yu Nakajima/Kyodo News via AP)
A man calls with a public phone in the blackout on the center of Sapporo city, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake hit wide areas on Japan's northernmost main island of Hokkaido early Thursday, triggering landslides as well as causing the loss of power. (AP Photo/Eugene Hoshiko)
Police, in blue with yellow uniform, search for missing persons around a house destroyed by a landslide after a powerful earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Several people were reported missing in the nearby the town, where a massive landslide engulfed homes in an avalanche of soil, rocks and timber. (Masanori Takei/Kyodo News via AP)
Rubbles of damaged ceilings are removed at the domestic terminal of New Chitose Airport after an earthquake in Chitose, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake shook Japan's northernmost main island of Hokkaido early Thursday, causing landslides that crushed homes, knocking out power across the island. Airports and many roads on the island were closed following the quake. (Hiroki Yamauchi/Kyodo News via AP)
A cracked road and destroyed buildings are seen after an earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Several people were reported missing in the nearby the town, where a massive landslide engulfed homes in an avalanche of soil, rocks and timber. (Masanori Takei/Kyodo News via AP)
Police search missing persons around houses destroyed by a landslide after an earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake rocked Japan’s northernmost main island of Hokkaido early Thursday, triggering landslides that crushed homes, knocking out power across the island, and forcing a nuclear power plant to switch to a backup generator. (Kyodo News via AP)
Landslides are seen in Atsuma, Hokkaido, northern Japan Thursday, Sept. 6, 2018. Rescuers were rushing to unearth survivors and restore power Thursday after a powerful earthquake jolted Japan's northernmost main island of Hokkaido, buckling roads, knocking homes off their foundations and causing entire hillsides to collapse. (Tsuyoshi Ueda/Kyodo News via AP)
People shop at a store during a blackout at Hakodate airport in Hakodate, Hokkaido, northern Japan following a strong earthquake Thursday, Sept. 6, 2018. A powerful earthquake rocked Japan's northernmost main island of Hokkaido early Thursday, triggering landslides that crushed homes, knocking out power and forcing a nuclear power plant to switch to a backup generator. (Kyodo News via AP)
A police officer checks around buildings destroyed by a landslide after a powerful earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Several people were reported missing in the nearby the town, where a massive landslide engulfed homes in an avalanche of soil, rocks and timber. (Masanori Takei/Kyodo News via AP)
Smoke billows from the facilities of Mitsubishi Steel Muroran Inc. during a fire following an earthquake in Muroran, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake rocked Japan’s northernmost main island of Hokkaido early Thursday, triggering landslides that crushed homes, knocking out power across the island, and forcing a nuclear power plant to switch to a backup generator. (Hokkaido Shimbun/Kyodo News via AP)
Japan Ground Self-Defense Force personnel search for missing persons at the site of a landslide triggered by a powerful earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Several people were reported missing in the nearby the town, where a massive landslide engulfed homes in an avalanche of soil, rocks and timber. (Yu Nakajima/Kyodo News via AP)
Cars pass by in the blackout on the center of Sapporo city, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake hit wide areas on Japan's northernmost main island of Hokkaido early Thursday, triggering landslides as well as causing the loss of power. (AP Photo/Eugene Hoshiko)
Police search for missing persons around a house destroyed by a landslide after an earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Several people were reported missing in the nearby the town, where a massive landslide engulfed homes in an avalanche of soil, rocks and timber. (Masanori Takei/Kyodo News via AP)
This aerial photo shows houses destroyed by a landslide after an earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake rocked Japan’s northernmost main island of Hokkaido early Thursday, triggering landslides that crushed homes, knocking out power across the island, and forcing a nuclear power plant to switch to a backup generator. (Kyodo News via AP)
Police search missing persons around houses destroyed by a landslide after an earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake rocked Japan’s northernmost main island of Hokkaido early Thursday, triggering landslides that crushed homes, knocking out power across the island, and forcing a nuclear power plant to switch to a backup generator. (Kyodo News via AP)
Cars are queued up as drivers wait to buy gas after an earthquake in Ebetsu, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake rocked Japan’s northernmost main island of Hokkaido early Thursday, triggering landslides that crushed homes, knocking out power across the island, and forcing a nuclear power plant to switch to a backup generator. (Kyodo News via AP)
A worker of a restaurant near the area distributes soup following a powerful earthquake in Sapporo, Hokkaido, northern Japan Thursday, Sept. 6, 2018. Rescuers were rushing to unearth survivors and restore power Thursday after a powerful earthquake jolted Japan's northernmost main island of Hokkaido, buckling roads, knocking homes off their foundations and causing entire hillsides to collapse. (Hiroki Yamauchi/Kyodo News via AP)
People use flashlights to check passengers' luggage at a terminal of Asahikawa airport in Asahikawa, Hokkaido, northern Japan during a black out following a strong earthquake Thursday, Sept. 6, 2018. A powerful earthquake rocked Japan's northernmost main island of Hokkaido early Thursday, triggering landslides that crushed homes, knocking out power and forcing a nuclear power plant to switch to a backup generator. (Kyodo News via AP)
This aerial photo shows Tomari nuclear plant in Tomari village, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Three reactors at the plant were offline for routine safety checks after a powerful earthquake rocked Japan's northernmost main island of Hokkaido early Thursday, but they are running on backup generators that kicked in after losing external power because of the island-wide blackouts, Japan's Nuclear Regulation Authority said. (Kyodo News via AP)
People gather to charge their mobile phones in the blackout on the center of Sapporo city, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake hit wide areas on Japan's northernmost main island of Hokkaido early Thursday, triggering landslides as well as causing the loss of power. (AP Photo/Eugene Hoshiko)
People gather to cook and serve to neighbors in the blackout on the center of Sapporo city, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake hit wide areas on Japan's northernmost main island of Hokkaido early Thursday, triggering landslides as well as causing the loss of power. (AP Photo/Eugene Hoshiko)
This combination of photos shows Hakodate city during a blackout following a powerful earthquake on Thursday, Sept. 6, 2018, top, and the city with lights on in November, 2015. (Kyodo News via AP)
Police search for missing persons around a house destroyed by a landslide after a powerful earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Several people were reported missing in the nearby the town, where a massive landslide engulfed homes in an avalanche of soil, rocks and timber. (Masanori Takei/Kyodo News via AP)
Workers try to clean the water-soaked floor at the domestic terminal of New Chitose Airport after an earthquake in Chitose, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake shook Japan's northernmost main island of Hokkaido early Thursday, causing landslides that crushed homes, knocking out power across the island. Airports and many roads on the island were closed following the quake. (Hiroki Yamauchi/Kyodo News via AP)
People wait in a long line to buy foods at a store in Sapporo, Hokkaido, northern Japan Thursday, Sept. 6, 2018. Rescuers were rushing to unearth survivors and restore power Thursday after a powerful earthquake jolted Japan's northernmost main island of Hokkaido, buckling roads, knocking homes off their foundations and causing entire hillsides to collapse. (Hiroki Yamauchi/Kyodo News via AP)
Police search missing persons around buildings destroyed by a landslide triggered by an earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Several people were reported missing in the nearby the town, where a massive landslide engulfed homes in an avalanche of soil, rocks and timber. (Masanori Takei/Kyodo News via AP)
Japan Ground Self-Defense Force personnel search for missing persons at the site of a landslide triggered by a powerful earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Several people were reported missing in the nearby the town, where a massive landslide engulfed homes in an avalanche of soil, rocks and timber. (Yu Nakajima/Kyodo News via AP)
Police search missing persons at the site of a landslide after an earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. A powerful earthquake rocked Japan’s northernmost main island of Hokkaido early Thursday, triggering landslides that crushed homes, knocking out power across the island, and forcing a nuclear power plant to switch to a backup generator. (Kyodo News via AP)
Buildings destroyed by a landslide block a road after an earthquake in Atsuma town, Hokkaido, northern Japan, Thursday, Sept. 6, 2018. Several people were reported missing in the nearby the town, where a massive landslide engulfed homes in an avalanche of soil, rocks and timber. (Masanori Takei/Kyodo News via AP)

SAPPORO, Japan — A powerful earthquake Thursday on Japan's northernmost main island of Hokkaido triggered dozens of landslides that crushed houses under torrents of dirt, rocks and timber, prompting frantic efforts to unearth any survivors.

At least nine people were killed, Prime Minister Shinzo Abe said. Officials said at least 366 were injured, five of them seriously, and about 30 people were unaccounted for after the magnitude 6.7 earthquake jolted residents from their beds at 3:08 a.m.

Nearly 3 million households were left without power by the quake — the latest in an exhausting run of natural disasters for Japan.

It paralyzed normal business on the island, as blackouts cut off water to homes, immobilized trains and airports, causing hundreds of flight cancellations, and shut down phone systems.

In the town of Atsuma, where entire hillsides collapsed, rescuers used small backhoes and shovels to search for survivors under the tons of earth that tumbled down steep mountainsides, burying houses and farm buildings below. The area's deep green hills were marred by reddish-brown gashes where the soil tore loose under the violent tremors.

Twenty-eight people remained unaccounted for in the town, Atsuma Mayor Shoichiro Miyasaka told public broadcaster NHK.

"We will carry on searching for them," he said.

Miyasaka said the town had emergency meals for up to 2,000 people and that more than 500 had sought refuge in its emergency shelters.

The landslides ripped through some homes and buried others. Some residents described awakening to find their next-door neighbors gone.

"The entire thing just collapsed," said one. "It's unbelievable."

The island's only nuclear power plant, which was offline for routine safety checks, temporarily switched to a backup generator to keep its spent fuel cool. Nuclear regulators said there was no sign of abnormal radiation — a concern after a massive quake and tsunami in March 2011 that hit northeast Japan destroyed both external and backup power to the Fukushima Dai-ichi nuclear plant, causing meltdowns.

Japan's Meteorological Agency said the quake's epicenter was 40 kilometers (24 miles) deep. But it still wreaked havoc across much of the relatively sparsely inhabited island.

Many roads were closed and some were impassable. NHK showed workers rushing to clean up shattered glass and reinstall ceiling panels that had fallen in the region's biggest airport at Chitose.

Japan is used to dealing with disasters, but the last few months have brought a string of calamities. The quake came on the heels of a typhoon that lifted heavy trucks off their wheels and triggered major flooding in western Japan, leaving the main airport near Osaka and Kobe closed after a tanker rammed a bridge connecting the facility to the mainland. The summer also brought devastating floods and landslides from torrential rains in Hiroshima and deadly hot temperatures across the country.

Prime Minister Shinzo Abe said that up to 25,000 troops and other personnel would be dispatched to Hokkaido to help with rescue operations.

As Japan's northern frontier and a major farming region with rugged mountain ranges and vast forests, Hokkaido is an area accustomed to coping with long winters, isolation and other hardships. But the blackouts brought on by the quake underscored the country's heavy reliance on vulnerable power systems: without electricity, water was cut to many homes, train lines were idled and phone systems out of order.

In the prefectural capital of Sapporo, a city of 1.9 million, the quake ruptured roads and knocked houses askew. A mudslide left several cars half buried. By evening the city's streets were dark and shops closed.

Economy, Trade and Industry Minister Hiroshige Seko told reporters that the extensive power outage was caused by an emergency shutdown of the main thermal power plant at Tomato-Atsuma that supplies half of Hokkaido's electricity.

The hope had been to get power back up within hours and some electricity was gradually being restored. However, damage to generators at the plant meant that a full restoration of power could take more than a week, Seko said.

Utilities were starting up several other thermal and hydroelectric plants and power was restored to 340,000 households, but even with those stopgap supplies thousands will still be without electricity for some time.

Authorities sent power generator vehicles to hospitals and other locations and water tanker trucks to communities in Sapporo, where residents were collecting bottles to tide them over until electricity and tap water supplies come back online. Long lines of people waited to charge their cellphones at the city's regional government office.

The quake's impact was widespread. To the north, in the scenic town of Biei, residents lined up outside of supermarkets and convenience stores, quickly clearing shelves of water, toilet paper and food.

"Only a few cartons of instant ramen were left," said Mika Takeda, who lives in the town of 10,000. The one local gas station was limiting customers to only 20 liters (5 gallons) of gas, she said.

___

Yamaguchi reported from Tokyo. AP writer Elaine Kurtenbach contributed from Tokyo.

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