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Vertical velocity from the Korean GPS Network (2000–2003) and its role in the South Korean neo-tectonics

Earth, Planets and Space volume 59, pages 337–341 (2007)Cite this article

Abstract

In the absence of adequate leveling observations in South Korea, the vertical deformation has been investigated using the Korean Global Positioning System (GPS) Network data (2000-2003). Although the vertical components of the GPS velocities have been rarely used in crustal deformation studies because of their high noise level, the processing strategy employed here enhances the data quality and eliminates the seasonal effect. The obtained vertical velocity field shows that the maximum vertical velocity in the ITRF 97 reference frame is 3.3 mm/year (subsidence), which reflects a relatively low level of seismic activity in South Korea. Two deformation patterns were recognized; subsidence in the Okchun Basin, and uplift in its adjacent areas. This subsidence is due to the collision of Kyonggi Massif and Okchun Basin (part of the South China block) against the Yongnam Massif and Taebaeksan Basin (part of the North China block).

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Authors and Affiliations

  1. College of Natural Sciences, Basic Science Research Institute Chonbuk National University, Chonju, 561-756, South Korea

    Ahmed M. Hamdy & Bong Gon Jo

  2. Geodynamic Department, National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt

    Ahmed M. Hamdy

  3. Korea Astronomy Observatory, 61-1, Hwaam-dong, Yuseong-gu, Daejeon, 305-348, South Korea

    Pil-Ho Park

Authors
  1. Ahmed M. Hamdy
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  2. Pil-Ho Park
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  3. Bong Gon Jo
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Correspondence to Ahmed M. Hamdy.

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Copyright © The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences; TERRAPUB.

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Hamdy, A.M., Park, PH. & Jo, B.G. Vertical velocity from the Korean GPS Network (2000–2003) and its role in the South Korean neo-tectonics. Earth Planet Sp 59, 337–341 (2007). https://doi.org/10.1186/BF03352693

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  • DOI: https://doi.org/10.1186/BF03352693

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