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Earth, Planets and Space

, Volume 59, Issue 5, pp 337–341

First Online: 08 June 2007Received: 27 March 2006Revised: 22 October 2006Accepted: 10 January 2007

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.

Key wordsKGN GPS vertical deformation Okchun Korea 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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Autor: Ahmed M. Hamdy - Pil-Ho Park - Bong Gon Jo

Fuente: https://link.springer.com/







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