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Hundreds of Quakes Rattle Tokara Islands as Shinmoe Volcano Erupts

Officials urge vigilance after Mount Shinmoe erupted following a swarm of 474 tremors.

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earthquake swarm japan june 2025
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Overview

  • Since June 21, the Japan Meteorological Agency has recorded at least 474 tremors around the Tokara Islands, including two magnitude-5.1 quakes on June 22 and June 24.
  • Mount Shinmoe erupted on June 22 for the first time in seven years, sending a 500-metre ash column into the air over central Kyushu.
  • Despite tremors reaching intensity 4 on Japan’s seismic scale, no significant damage or injuries have been reported across the affected islands.
  • The Japan Meteorological Agency has warned residents to prepare for stronger earthquakes and has issued no tsunami or special volcanic alerts.
  • Seismologists stress that there is no scientific way to predict earthquakes and dismiss any connection to manga artist Ryo Tatsuki’s July disaster forecast.