“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.
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