Published On: Sat, Aug 10th, 2024

Why Japan issued its first ‘megaquake advisory,’ and what that means


The Summary

  • Japan’s meteorological agency on Thursday issued its first-ever “megaquake advisory.”
  • The warning followed a 7.1-magnitude earthquake off the country’s southern coast.
  • That raises the risk of an even larger quake on the Nankai Trough, an underwater subduction zone that scientists believe is capable of producing temblors up to magnitude 9.1.

After a 7.1-magnitude earthquake shook southern islands in Japan on Thursday, the country’s meteorological agency sent out an ominous…



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