Investigating the Ground Motion Characteristics of the 2016 Mw 5.5 Gyeongju, South Korea, Earthquake Using the SCEC Broadband Platform

Seok Goo Song, Kwan-Hee Yun, & Sangmin Kwak

Submitted August 14, 2018, SCEC Contribution #8576, 2018 SCEC Annual Meeting Poster #301

The 2016 Mw 5.5 Gyeongju, South Korea, earthquake is the largest instrumentally recorded seismic event in the country. This event provided a valuable set of recorded strong ground motion data in the Korean Peninsula. We investigated the ground motion characteristics of the event through a physics-based approach using the SCEC BBP. The recorded ground motions for the Gyeongju event show patterns consistent with simulated ground motions for a stable continental region. High stress drop and low attenuation, commonly observed in the stable continental region, may control ground motion characteristics in the Korean Peninsula, which could be an important factor to consider in seismic hazard assessment of the region. Physics-based ground motion modeling may be a useful tool to obtain ground motion characteristics from the recorded ground motion data and may play an important role in advanced seismic hazard assessment and mitigation

Citation
Song, S., Yun, K., & Kwak, S. (2018, 08). Investigating the Ground Motion Characteristics of the 2016 Mw 5.5 Gyeongju, South Korea, Earthquake Using the SCEC Broadband Platform. Poster Presentation at 2018 SCEC Annual Meeting.


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Ground Motions