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Dependence of waveform of near-field coseismic ionospheric disturbances on focal mechanisms
Earth, Planets and Space volume 61, pages 939–943 (2009)
Using Total Electron Content (TEC) measurements with Global Positioning System we studied ionospheric responses to three large earthquakes that occurred in the Kuril Arc on 04 October 1994, 15 November 2006, and 13 January 2007. These earthquakes have different focal mechanisms, i.e. high-angle reverse, low-angle reverse, and normal faulting, respectively. TEC responses to the 2006 and 2007 events initiated with positive and negative changes, respectively. On the other hand, the initial TEC changes in the 1994 earthquake showed both positive and negative polarities depending on the azimuth around the focal area. Such a variety may reflect differences in coseismic vertical crustal displacements, which are dominated by uplift and subsidence in the 2006 and 2007 events, respectively, but included both in the 1994 event.
Afraimovich, E. L., N. P. Perevalova, A. V. Plotnikov, and A. M. Uralov, The shock-acoustic waves generated by the earthquakes, Ann. Geophys., 19, 395–409, 2001.
Afraimovich, E. L., E. I. Astafieva, and V. V. Kirushkin, Localization of the source of ionospheric disturbance generated during an earthquake, Int. J. Geomag. Aeronomy, 6, doi:10.1029/2004GI000092, 2006.
Ammon, Ch. J., H. Kanamori, and T. Lay, A great earthquake doublet and seismic stress transfer cycle in the central Kuril islands, Nature, 451, 561–565, 2008.
Artru, J., P. Lognonne, and E. Blanc, Normal modes modelling of postseismic ionospheric oscillations, Geophys. Res. Lett., 28, 697–700, 2001.
Artru, J., T. Farges, and P. Lognonné, Acoustic waves generated from seismic surface waves: propagation properties determined from Doppler sounding observations and normal-mode modelling, Geophys. J. Int., 158, 1067–1077, 2004.
Astafyeva, E. I. and E. L. Afraimovich, Long-distance propagation of traveling ionospheric disturbances caused by the great Sumatra-Andaman earthquake on 26 December 2004, Earth Planets Space, 58, 1025–1031, 2006.
Blanc, E., Observations in the upper atmosphere of infrasonic waves from natural or artificial sources: A summary, Ann. Geophys., 3, 673–687, 1985.
Calais, E. and J. B. Minster, GPS detection of ionospheric perturbations following the January 17, 1994, Northridge earthquake, Geophys. Res. Lett., 22, 1045–1048, 1995.
Calais, E. and J. B. Minster, GPS, earthquakes, the ionosphere, and the Space Shuttle, Phys. Earth Planet. Inter., 105, 167–181, 1998.
Dautermann, T., E. Calais, and G. S. Mattioli, GPS detection and energy estimation of the ionospheric wave caused by the July 13th, 2003 explosion of the Soufriere Hills Volcano, Montserrat, J. Geophys. Res., doi:10.1029/2008JB005722, 2008 (in press).
DeMets, C., R. G. Gordon, D. F. Argus, and S. Stein, Current plate motions, Geophys. J. Int., 101, 425–478, 1990.
Ducic, V., J. Artru, and P. Lognonne, Ionospheric remote sensing of the Denali earthquake Rayleigh surface waves, Geophys. Res. Lett., 30(18), 1951, doi:10.1029/2003GL017812, 2003.
Heki, K. and J. Ping, Directivity and apparent velocity of the coseismic ionospheric disturbances observed with a dense GPS array, Earth Planet. Sci. Lett., 236, 845–855, 2005.
Heki, K., S. Miyazaki, H. Takahashi, M. Kasahara, F. Kimata, S. Miura, N. Vasilenco, A. Ivashchenco, and K. An, The Amurian Plate motion and current plate kinematics in eastern Asia, J. Geophys. Res., 104, 29147–29155, 1999.
Heki, K., Y. Otsuka, N. Choosakul, N. Hemmakorn, T. Komolmis, and T. Maruyama, Detection of ruptures of Andaman fault segments in the 2004 great Sumatra earthquake with coseismic ionospheric disturbances, J. Geophys. Res., 111, doi:10.1029/2005JB004202, 2006.
Kikuchi, M. and H. Kanamori, The Shikotan earthquake of October 4, 1994: Lithospheric Earthquake, Geophys. Res. Lett., 22, 1025–1028, 1995.
Liu, J. Y., Y. B. Tsai, S. W. Chen, C. P. Lee, Y. C. Chen, H. Y. Yen, W. Y. Chang, and C. Liu, Giant ionospheric disturbances excited by the M9.3 Sumatra earthquake on 26 December 2004, Geophys. Res. Lett., 33, L02103, doi:10.1029/2005GL023963, 2006.
Lognonne, P., J. Artru, R. Garcia, F. Crespon, V. Ducic, E. Jeansou, G. Occhipinti, J. Helbert, G. Moreaux, and P. E. Godet, Ground based GPS imaging of ionospheric post-seismic signal, Planet. Space Sci., 54, 528–540, 2006.
Naugolnykh, K. and L. Ostrovsky, Nonlinear Wave Processes in Acoustics, 312 pp, Cambridge University Press, New York, 1998.
Occhipinti, G., A. Kherani, and P. Lognonne, Geomagnetic dependence of ionospheric disturbances induced by tsunamigenic internal gravity waves, Geophys. J. Int., 173, doi:10.1111/j.1365-246X.2008.03760.x, 2008.
Okada, Y., Internal deformation due to shear and tensile faults in a halfspace, Bull. Seismol. Soc. Am., 82, 1018–1040, 1992.
Ostrovsky, L. A., Ionospheric effects of ground motion: the roles of magnetic field and nonlinearity, J. Atmos. Sol.-Terr. Phys., 70, 1273–1280, 2008.
Pavlov, V. A., The acoustic pulse above the epicenter of an earthquake, J. Geomag. Aeronomy, 26, 678–683, 1986.
Shida, T., Memoirs on “Researches of the rigidity and the waves within the Earth and crust”, Toyo-Gakugei-Zasshi, 45, 275–289, 1929 (in Japanese).
Tsuji, H., Y. Hatanaka, T. Sagiya, and M. Hashimoto, Coseismic crustal deformation from the 1994 Hokkaido-Toho-Oki earthquake monitored by a nationwide continuous GPS array in Japan, Geophys. Res. Lett., 22, 1669–1672, 1995.
Yamanaka, Y. and M. Kikuchi, Asperity map along the subduction zone in northeastern Japan inferred from regional seismic data, J. Geophys. Res., 109, B07307, doi:10.1029/2003JB002683, 2004.
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Astafyeva, E., Heki, K. Dependence of waveform of near-field coseismic ionospheric disturbances on focal mechanisms. Earth Planet Sp 61, 939–943 (2009). https://doi.org/10.1186/BF03353206
- Coseismic ionosphere disturbances
- focal mechanism