Fault slip analysis of Quaternary faults in southeastern Korea

Youngdo Park, Jin Han Ree, Seung Hak Yoo

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48 Citations (Scopus)


The Quaternary stress field has been reconstructed for southeast Korea using sets of fault data. The subhorizontal direction of the maximum principal stress (σ1) trended ENE and the direction of the minimum principal stress (σ3) was nearly vertical. The stress ratio (Φ = (σ2 - σ3)/ (σ1 - σ3)) value was 0.65. Two possible interpretations for the stress field can be made in the framework of eastern Asian tectonics; (1) The σHmax trajectory for southeast Korea fits well with the fan-shaped radial pattern of maximum principal stress induced by the India-Eurasia collision. Thus, we suggest that the main source for this recent stress field in southeast Korea is related to the remote India-Eurasia continental collision. (2) The stress field in Korea shows a pattern similar to that in southwestern Japan. The origin for the E-W trending σHmax in Japan is known to be related to the mantle upwelling in the East China Sea. Thus, it is possible that Quaternary stress field in Korea has evolved synchronously with that in Japan. We suggest further studies (GPS and in situ stress measurement) to test these hypotheses.

Original languageEnglish
Pages (from-to)118-125
Number of pages8
JournalGondwana Research
Issue number1-2
Publication statusPublished - 2006 Jan

Bibliographical note

Funding Information:
We thank the careful reviews by Tim Bell and Atsushi Yamaji. We also thank Oliver Fabbri for reviewing earlier version of the manuscript, and K. Sajeev for editorial handling. This work was supported by KRF grant 2000-015-DP0430.


  • Eastern Asia
  • Fault slip analysis
  • Japan
  • Korea
  • Quaternary faults

ASJC Scopus subject areas

  • Geology


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