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Strong earthquake hits off Japan’s coast, tsunami warning issued

Authorities urged more than 182,000 residents to evacuate as waves up to 3 meters were forecast and 80-centimeter tsunamis were recorded.

  • A magnitude 5.0 earthquake struck northern Nagano Prefecture at 1:20 p.m. on Saturday, according to the Japan Meteorological Agency, with the epicenter at a depth of 10 kilometers.
  • The quake registered a seismic intensity of upper-5 on the Japan 1 to 7 scale, with an upper 5 recorded in Omachi and a lower 5 in Nagano.
  • An intensity of 4 was recorded in the village of Ogawa, while the city of Matsumoto registered an intensity of 3.
  • There was no tsunami risk associated with the quake, though it remained unclear immediately if there had been any injuries or damage in the area.
  • Japan accounts for about a fifth of the world's earthquakes of 6 magnitude or greater, reflecting the nation's position as one of the world's most seismically active regions.
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268 Articles

Center

A sea quake before Japan triggers shocks all the way to Tokyo. How great is the danger of an even more massive earthquake in the Pacific – and what can be learned from it for other regions of the world?

·Berlin, Germany
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At least six people were injured, two of them seriously, in the 7.7 magnitude earthquake in northern Japan this Monday, which also caused damage to buildings and roads, Japanese government spokesman Minoru Kihara said Tuesday. Kihara asked citizens "to pay attention to the information of the Japan Meteorological Agency and local governments during the next week" and to be prepared for the possibility of new earthquakes, in statements collected b…

·Washington, United States
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Center

An earthquake of magnitude 7.7 off northeast Japan triggered a tsunami warning and evacuations. Meanwhile, a warning was given, but authorities were still faced with possible severe earthquakes. But how does a tsunami actually develop?

Center

An earthquake of a magnitude of 7.7 s has occurred Monday at 16H53 (07H53 GMT) in the waters of the Pacific, off the north of the Prefecture of Iwate, according to the Japanese Meteorological Agency (JMA). ...

·Brussels, Belgium
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The Japan Times broke the news in Japan on Saturday, April 18, 2026.
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