Seismologists have warned Japan to stay vigilant for the next “Big One” after a 7.8-magnitude earthquake struck off the coast of the country, injuring a dozen people.
Buildings swayed for about a minute in Tokyo on Saturday night as the quake struck at a remote spot in the Pacific Ocean 542 miles (874km) south of the capital, the US Geological Survey said.
Despite its power, there was no risk of a tsunami as the epicentre was 676km below the Earth’s surface, the USGS and the Pacific Tsunami Warning Center said.
Twelve people were injured, including a 56-year-old man who broke his ribs, but no one was killed, according to a Tokyo fire department official and local media.
Four hundred people were trapped on the observation decks of Tokyo Tower as its elevators stopped for more than an hour. Runways at Haneda airport in the capital were closed for about 30…
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