“In this photo, I’m examining a previously hidden active fault line between two geological blocks. I discovered it with other researchers working for the Korea Active Fault Research Group (KAFRG). The site is on a ridge in a forested valley about an hour’s drive from my office at Kyungpook National University in Daegu, South Korea. It’s part of the Hwalseongri fault, situated just south of Gyeongju National Park.
In 2016 and 2017, large earthquakes occurred in this area, causing great concern in our country. Until the Tōhoku earthquake in 2011 caused the nuclear disaster at Fukushima in nearby Japan, people in South Korea had not paid much attention to active faults. We’ve become more worried about seismic risks since then.
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This interview has been edited for length and clarity.
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