1. Department of Fire and Disaster Prevention, Semyung University, 65, Semyeong-ro, Jecheon-si, Chungcheongbuk-do 27136, Korea.
2. Korea Institute of Geoscience and Mineral Resources (KIGAM), 124, Gwahak-ro Yuseong-gu, Daejeon 34132, Korea.
3. Corresponding author.