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A Magnet for Megaquakes

Here's how a mountain-sized rock just below the coast of southern Japan may have been the source for disastrous earthquakes.

ByDonna Sarkar
Pacific Earthquake BeltCredit: tunasalmon/Shutterstock

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Over the last decade, Japan has been hit with more than 27 major earthquakes measuring at least a lower 6 on the country’s seismic intensity scale. While scientists and researchers have been scrambling to find why the region stands on such shaky ground, a recent study has provided a glimmer of hope.

Researchers from the University of Texas believe they have found the culprit: a mountain-sized mass of igneous rock just beneath the coast of southern Japan. The mass, known as Kumano Pluton, was first discovered in 2006 . However, the details remained a mystery until now.

Recent findings reveal the mass has been acting as a magnet for earthquakes in the area. What does this discovery mean for the future of this vulnerable region? Let’s take a closer look.

The beautiful island country of Japan falls along the Pacific Ring of Fire, a region that's as deadly as it ...

  • Donna Sarkar

    Donna has a bachelor's degree in Journalism and Psychology from Marquette University. Her collection of work features deep dives into human psychology as well as the latest health and technology news. Her work has also been published in a variety of newspapers and magazines, including wikiHow, All That's Interesting, Health Digest, and Milwaukee Journal Sentinel.

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