- Open Access
Displacement analysis of the GPS station of Sampali, Indonesia
Earth, Planets and Space volume 60, pages519–528(2008)
The displacement of the SAMP GPS station located in Medan City, Indonesia, is analyzed by means of an on-line point positioning method, the Canadian Spatial Reference System-Precise Point Positioning (CSRS-PPP). Based on the comparison of the results obtained with those from previous studies, we propose that CSRS-PPP can be applied to analyses of the displacement of a GPS station. Previous studies have focused solely on the “Sumatra-Andaman Islands Earthquake of December 26, 2004”; in contrast, we provide here an in-depth analysis of the crustal movements at the SAMP station for an expanded period of 2.5 years. CSRS-PPP, an Internet data processing service of the Department of Natural Resources Canada (NRCan), was used to process the data obtained at the SAMP station from January 2004 to July 2006. The data show a clear displacement in the southwestern direction from December 26, 2004 to March 28, 2005 when two major earthquakes occurred. However, after the midpoint of 2005, the data show displacement at a regular speed. In particular, the “Sumatra-Andaman Islands Earthquake (Mw = 9.0) of December 26, 2004” led to a displacement of 0.1387 m (dn = −0.0122 m, de = −0.1382 m) to the southwest. The earthquake (Mw = 8.7) that occurred on March 28, 2005 led to a displacement of 0.1921 m (dn = −0.1400 m, de = −0.1315 m) to the southwest. Starting from December 26, 2004, displacement to the southwest continued. From April 2005, however, the speed of the displacement gradually slowed down. The dn variation shows a displacement at a regular rate (−55.69 mm/year) from April 28, 2005 to July 2006, while the de variation shows a displacement at a regular rate (−23.66 mm/year) from July 5, 2005 to July 2006.
AUSPOS—Online GPS Processing Service, http://www.ga.gov.au/geodesy/sgc/wwwgps/.
Australian Regional GPS Network (ARGN) coordinate time series, Space geodesy analysis centre national mapping division, Geoscience Australia, 2003.
Banerjee, P., Inter-seismic geodetic motion and farfield coseismic surface displacements caused by the 26 December 2004 Sumatra earthquake observed from GPS data, Curr. Sci., 889, 1491–1496, 2005.
Banerjee, P., F. F. Pollitz, and R. Burgmann, The size and duration of the Sumatra-Andaman earthquake from far-field static offsets, Science, 308, 1769–1772, 2005. Online material (http://quake.usgs.gov/research/deformation/modeling/papers/2005/Banerjee_etal.pdf).
Beutler, G., I.I. Mueller, and R. E. Neilan, The International GPS service for Geodynamics (IGS): The Story, GPS Trends in Precise Terrestrial, Airborne and Spaceborne Applications, 3–13, 1995a.
Beutler, G., M. Rothacher, S. Schaer, T. A. Springer, J. Kouba, and R. E. Neilan, The International GPS Service (IGS): An Interdisciplinary Service in Support of Earth Sciences, Adv. Space Res., 23, 631–653, 1999b.
Blewitt, G., C. Kreemer, W. C. Hammond, H. P. Plag, and S. Stein, Rapid determination of earthquake magnitude using GPS for tsunami warning systems, Geophys. Res. Lett., 33, L11309, doi:10.1029/2006GL026145, 2006.
Bolt, B. A., Earthquakes: Newly Revised and Expanded, New York, 1993. Canadian Spatial Reference System Precise Point Positioning, http://www.geod.nrcan.gc.ca/pppe.php/ppp e.php.
Cerveira, P. J. M. and R. Weber, Discontinuities in the IGS tracking stations coordinate time series, IGS Tenth Anniversary Workshop and Symposium, Berne, Switzerland, March 1–5, 2004.
Dawson, J., R. Govind, and J. Manning, The AUSLIG online GPS processing system (AUSPOS), http://www.ga.gov.au/imagecache/GA5057.pdf, 2001.
Ergintav, S., R. Bürgmann, S. McClusky, R. Çakmak, R. E. Reilinger, O. Lenk, A. Barka, and H. Özener, Postseismic deformation near the İzmit Earthquake (17 August 1999, M 7.5) rupture zone, Bull. Seismol. Am., 92, 194–207, 2002.
Fialko, Y., Interseismic strain accumulation and the earthquake potential on the southern San Andreas fault system, Nat. Lett., 441, 968–971, 2006.
Geodetic Survey Division, On-line Precise Point Positioning ‘How To Use’ Document, Natural Resources Canada, Canada Centre for Remote Sensing, 2004.
GIPSY-OASIS II—An Overview, http://facility.unavco.org/software/processing/gipsy/gipsy.html.
Heki, K., S. Miyazaki, and H. Tsuji, Silent fault slip following an interplate thrust earthquake at the Japan Trench, Nature, 386, 595–597, 1997.
Kreemer, C., G. Blewitt, and F. Maerten, Co-and postseismic deformation of the 28 March 2005 Nias Mw 8.7 earthquake from continuous GPS data, Geophys. Res. Lett., 33, L07307, 2006a.
Kreemer, C., G. Blewitt, W. C. Hammond, and H. P. Plag, Global deformation from the great 2004 Sumatra-Andaman Earthquake observed by GPS: Implications for rupture process and global reference frame, Earth Planets Space, 58, 141–148, 2006b.
Lomnitz, C., Fundamentals of earthquake prediction, J. Wiley & Sons, 1994.
MacDonald, D., Auto-GIPSY, GrafNet, OPUS and SCOUT: A Comparison, Waypoint Consulting Inc. http://sopac.ucsd.edu/input/processing/pubs/staticProcessingComparison.pdf, 2002.
Major earthquakes, http://www.infoplease.com/ce6/sci/A0857867.html.
Melbourne, T. I. and F. H. Webb, Precursory transient slip during the 2001 Mw = 8.4 Peru earthquake sequence from continuous GPS, Geophys. Res. Lett., 29(21), 2032, doi:10.1029/2002GL015533, 2002.
Melbourne, T. I., F. H. Webb, J. M. Stock, and C. Reigber, Rapid postseismic transients in subduction zones from continuous GPS, J. Geophys. Res., 107(B10), 2241, doi:10.1029/2001JB000555, 2002.
Online Positioning User Service, http://www.ngs.noaa.gov/OPUS/.
Perfettini, H., J. P. Avouac, and J. C. Ruegg, Geodetic displacements and aftershocks following the 2001 Mw = 8.4 Peru earthquake: Implications for the mechanics of the earthquake cycle along subduction zonse, J. Geophys. Res., 110, B09404, doi:10.1029/2004JB003522, 2005.
Scripps Coordinate Update Tool (SCOUT), http://sopac.ucsd.edu/cgi-bin/SCOUT.cgi/cgi-bin/SCOUT.cgi.
SOPAC Description, http://sopac.ucsd.edu/other/sopacDescription.html.
Subarya, C., M. Chlieh, L. Prawirodirdjo, J. P. Avouac, Y. Bock, K. Sieh, A. J. Meltzner, D. H. Natawidjaja, and R. McCaffrey, Plate-boundary deformation associated with the great Sumatra-Andaman earthquake, Nature, 440, 46–51, doi10.1038, 2006.
Tétreault, P., J. Kouba, P. Héroux, and P. Legree, CSRS-PPP: An internet service for GPS user access to the canadian spatial reference frame, Geomatica, 59, 2005.
U.S. Geological Survey, National Earthquake Information Center, Historic Worldwide Earthquakes, http://earthquake.usgs.gov/regional/world/historical.php.
About this article
Cite this article
Lee, E.S., Lee, Y.W. & Park, J.H. Displacement analysis of the GPS station of Sampali, Indonesia. Earth Planet Sp 60, 519–528 (2008). https://doi.org/10.1186/BF03352818
- GPS station
- dn variation
- de variation