Hankyung Bae

• Master of Science
• Korea Institute of Geoscience and Mineral Resources

The NNE-SSW-striking Yangsan Fault, which can be traced through Busan, Yangsan, Gyeongju, Pohang, and Yeongdeok, is a mature fault with a multi-stage deformation history that has been active since at least the Late Cretaceous. The fault is also associated with Quaternary deformation features at the surface. In the last several decades, academic and...

The Cheorwon area of South Korea has several records of the Quaternary faulting along the Chugaryung fault system and volcanic activity (Hantangang River Basalt). The most recent faulting event occurred along a segment of the Wangsukcheon fault (ca. 210 ka). In this study, a 5-m-deep trench was examined at the northern end of the Cheorwon Plain. Th...

The NNE–SSW-striking Yangsan Fault in southeastern Korea has been regarded as one of the most prominent seismogenic structures in the Korean Peninsula on the basis of instrumental and historical seismicity, and paleoseismic records along the fault zone. Its seismic behavior is, however, still uncertain due to long recurrence intervals of strong ear...

In November 2017, an M w 5.4 earthquake with a shallow (~4 km) hypocenter occurred in the Pohang area, one of the most developing industrial cities in South Korea. This shock resulted in the costliest earthquake damages in modern Korean history. Immediately after the event, it was not easy to recognize the source fault due to the lack of clear cose...

During and shortly after the 2017 Pohang Earthquake (Mw 5.4), sand blows were observed around the epicenter for the first time since the beginning of instrumental seismic recording in South Korea. We carried out field surveys plus satellite and drone imagery analyses, resulting in observation of approximately 600 sand blows on Quaternary sediment c...