Ground-motion prediction equation for South Korea based on recent earthquake records

Ki Hyun Jeong, Han Seon Lee

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A ground-motion prediction equation (GMPE) for the Korean Peninsula, especially for South Korea, is developed based on synthetic ground motions generated using a ground motion model derived from instrumental records from 11 recent earthquakes of ML > 4.5 in Korea, including the Gyeongju earthquake of Sept. 12. 2016 (ML5.8). PSAs of one standard deviation from the developed GMPE with MW 6.5 at hypocentral distances of 15 km and 25 km are compared to the design spectrum (soil condition, SB) of the Korean Building Code 2016 (KBC), indicating that: (1) PSAs at short periods around 0.2 sec can be 1.5 times larger than the corresponding KBC PSA, and (2) SD's at periods longer than 2 sec do not exceed 8 cm. Although this comparison of the design spectrum with those of the GMPE developed herein intends to identify the characteristics of the scenario earthquake in a lower-seismicity region such as South Korea, it does not mean that the current design spectrum should be modified accordingly. To develop a design spectrum compatible with the Korean Peninsula, more systematic research using probabilistic seismic hazard analysis is necessary in the future.

Original languageEnglish
Pages (from-to)29-44
Number of pages16
JournalEarthquake and Structures
Issue number1
Publication statusPublished - 2018 Jul 1

Bibliographical note

Funding Information:
This research was supported by a grant (17AUDP-B066083-05) from the Architecture & Urban Development Research Program funded by the Ministry of Land, Infrastructure and Transport of the Korean government.

Publisher Copyright:
© 2018 Techno-Press, Ltd.


  • Ground motion model
  • Ground motion prediction equation
  • Korean Peninsula
  • Lower-seismicity region

ASJC Scopus subject areas

  • Civil and Structural Engineering


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