The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLII-4/W1
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-4/W1, 61–64, 2016
https://doi.org/10.5194/isprs-archives-XLII-4-W1-61-2016
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-4/W1, 61–64, 2016
https://doi.org/10.5194/isprs-archives-XLII-4-W1-61-2016

  29 Sep 2016

29 Sep 2016

ESTIMATION OF CO- AND POSTSEISMIC DEFORMATION AFTER THE Mw 8.6 NIAS-SEMEULUE AND Mw 8.5 BENGKULU EARTHQUAKES FROM CONTINUOUS GPS DATA

W. A. W. Aris, T. A. Musa, and K. Omar W. A. W. Aris et al.
  • Geomatics Innovation Research Group, Universiti Teknologi Malaysia

Keywords: GPS, earthquake, postseismic, deformation

Abstract. The Mw 8.5 Bengkulu earthquake of 30 September 2007 and the Mw8.6 28 March 2005 are considered amongst large earthquake ever recorded in Southeast Asia. The impact into tectonic deformation was recorded by a network of Global Positioning System (GPS) Continuously Operating Reference Station (CORS) within southern of Sumatra and west-coast of Peninsular Malaysia. The GPS data from the GPS CORS network has been deployed to investigate the characteristic of postseismic deformation due to the earthquakes. Analytical logarithmic and exponential function was applied to investigate the deformation decay period of postseismic deformation. This investigation provides a preliminary insight into postseismic cycle along the Sumatra subduction zone in particular and on the dynamics Peninsular Malaysia in general.