A series of powerful earthquakes off central Japan’s west coast damaged homes and prompted tsunami warnings Monday and residents were urged to seek higher ground. The Japan Meterological Agency (JMA) said the Noto region, on the western side of Japan’s main island of Honshu, was hit by a rapid series of quakes — about 20 in total — starting with a 5.7 magnitude temblor at 4:06 p.m. local time.
That was followed by a major 7.6-magnitude quake just four minutes later, then a 6.1 magnitude temblor at 4:18 p.m., a 4.5 magnitude one at 4:23 p.m., a 4.6 magnitude quake at 4:29 p.m., and a 4.8 magnitude quake at 4:32.
The first tsunami waves, around four feet high, hit Ishikawa prefecture’s Wajima port about an hour after the quakes struck, and there were warnings of more tsunami, possibly as high as 16 feet, yet to come in Ishikawa. The “major tsunami warning” issued immediately after the powerful quakes was later downgraded to a tsunami warning, however.
Presenters on the national broadcaster NHK urged people in the region to leave everything behind and move quickly to higher ground.
“Hazardous tsunami waves from this earthquake are possible within 300 km [about 186 miles] of the epicenter along the coasts of Japan,” the Hawaii-based Pacific Tsunami Warning Center said, while the Japan Meteorological Agency warned the waves could be up to five metres high.
Power companies that operation nuclear plants in the region said they were checking for any irregularities but reported no immediate problems, and the government later appeared to confirm the safety of the plants.
“It has been confirmed that there are no abnormalities at Shika nuclear power plant [in Ishikawa] and other stations as of now,” Yoshimasa Hayashi, a spokesperson for the national government said, according to the AFP news agency.
There was damage from the quakes, however, and video aired by NHK showed what appeared to be buildings collapsing in Ishikawa. The network said buildings shook all the way on the other side of Japan, in the capital Tokyo, and Yoshimasa said authorities were still checking the extent of damage in the affected regions in the west.
The Reuters news agency quoted utilities provider Hokuriku Electric Power as saying more than 36,000 households lost electricity in the Ishikawa and Toyama prefectures.
Japanese news video showed reddish smoke spewing from an area in Wajima city, in Ishikawa and Hayashi said at least six homes were damaged by the quakes, with people trapped inside. He said no reports of deaths or injuries had been confirmed but noted the situation was still unclear. Japan’s military was taking part in the rescue efforts, he said.
Bullet trains in the area were halted. Parts of the highway were also closed, and water pipes had burst, according to NHK.
Japanese media reports showed a crowd of people, including a woman with a baby on her back, standing by huge cracks that had ripped through the pavement.
The Meteorological Agency said in a nationally broadcast news conference that more major quakes could hit the area over the next week, especially in the next two or three days.
Tsunami warnings were also issued for Japan’s northernmost main island of Hokkaido and for parts of North Korea and Russia. Russian officials issued a tsunami alert for the island of Sakhalin, warning that areas across the island’s west coast could be affected by the waves.
In nearby South Korea, the weather agency urged residents in some eastern coastal towns to watch for possible changes in sea levels. Tsunami waves that hit later later can be bigger than the initial ones.
A huge earthquake and tsunami struck northeast Japan on March 11, 2011, devastating a vast swathe of the country’s coastline and triggering nuclear reactor meltdowns in Fukushima.
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