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Volume 52 Supplement 10

Special Issue: Application of GPS and other space geodetic techniques to Earth Sciences (1)

GPS seismometers with up to 20 Hz sampling rate


The large near-field displacements before and during an earthquake are invaluable information for earthquake source study and for the detection of slow/silent quakes or pre-seismic crustal deformation events. However due to bandwidth limitations and saturation current seismometers cannot measure many of these displacements directly. In a joint experiment between the University of New South Wales (UNSW) and the Meteorological Research Institute (MRI), two Trimble MS750 GPS receivers were used in the Real-Time Kinematic (RTK) mode with a fast sampling rate of up to 20 Hz to test the feasibility of a “GPS seismometer” in measuring displacements directly. The GPS antenna, an accelerometer, and a velocimeter were installed on the roof of an earthquake shake-simulator truck. The simulated seismic waveforms resolved from the RTK time series are in very good agreement with the results from the accelerometer and the velocimeter, after integrating twice and once respectively. Moreover, more displacement information are revealed in the GPS RTK results although they are noisier.


  • Ge, L., GPS seismometer and its signal extraction, Proc. 12th Int. Tech. Meeting of the Satellite Division of the U.S. Inst. of Navigation GPS ION’99, Nashville, Tennessee, 14–17 September, 1999.

    Google Scholar 

  • Hatanaka, Y., H. Tsuji, Y. Abe, Y. Iimura, K. Kobayashi, and H. Morishita, Coseismic crustal displacements from the 1994 Hokkaido-Toho-Oki earthquake revealed by a nationwide continuous GPS array in Japan— results of GPS kinematic analysis, Japanese Symposium on GPS (1994), Tokyo, Japan, 15–16 December, 141–147, 1994 (in Japanese).

    Google Scholar 

  • Heki, K. and Y. Tamura, Short-term afterslip in the 1994 Sanriku-Haruka-Oki earthquake, Geophys. Res. Lett., 24(24), 3285–3288, 1997.

    Article  Google Scholar 

  • Hirahara, K., T. Nakano, Y. Hoso, S. Matsuo, and K. Obana, An experiment for GPS strain seismometer, Japanese Symposium on GPS (1994), Tokyo, Japan, 15–16 December, 67–75, 1994.

    Google Scholar 

  • Miyazaki, S., T Sagiya, T. Tada, and Y. Hatanaka, One Hz Sampling GPS as an Ultra-Long-Period Seismograph, 1997 AGU Fall Meeting, December 8–12, San Francisco, California, 1997.

    Google Scholar 

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Correspondence to Linlin Ge.

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Ge, L., Han, S., Rizos, C. et al. GPS seismometers with up to 20 Hz sampling rate. Earth Planet Sp 52, 881–884 (2000).

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