Evan Bush

Japan issued a “megaquake advisory” following a 7.1-magnitude earthquake off its coast. That raised the risk of a larger quake on the Nankai Trough, an underwater subduction zone.

​Japan issued a “megaquake advisory” following a 7.1-magnitude earthquake off its coast. That raised the risk of a larger quake on the Nankai Trough, an underwater subduction zone. 

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