References

NHESS

Natural Hazards and Earth System Sciences

NHESS

Nat. Hazards Earth Syst. Sci.

1684-9981

Copernicus Publications

Göttingen, Germany

10.5194/nhess-9-3-2009

Ionospheric quasi-static electric field anomalies during seismic activity in August–September 1981

Gousheva

¹ Danov

² Hristov

¹ Matova

Space Research Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria

Solar-Terrestrial Influences Laboratory, Bulgarian Academy of Sciences, Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria

05 01 2009

9 1 3 15

2009

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The paper proposes new results, analyses and information for the plate tectonic situation in the processing of INTERCOSMOS-BULGARIA-1300 satellite data about anomalies of the quasi-static electric field in the upper ionosphere over activated earthquake source regions at different latitudes. The earthquake catalogue is made on the basis of information from the United State Geological Survey (USGS) website. The disturbances in ionospheric quasi-static electric fields are recorded by IESP-1 instrument aboard the INTERCOSMOS-BULGARIA-1300 satellite and they are compared with significant seismic events from the period 14 August–20 September 1981 in magnetically very quiet, quiet and medium quiet days. The main tectonic characteristics of the seismically activated territories are also taken in account. The main goal of the above research work is to enlarge the research of possible connections between anomalous vertical electric field penetrations into the ionosphere and the earthquake manifestations, also to propose tectonic arguments for the observed phenomena. The studies are represented in four main blocks: (i) previous studies of similar problems, (ii) selection of satellite, seismic and plate tectonic data, (iii) data processing with new specialized software and observations of the quasi-static electric field and (iiii) summary, comparison of new with previous results in our studies and conclusion. We establish the high informativity of the vertical component <i>Ez</i> of the quasi-static electric field in the upper ionosphere according observations by INTERCOSMOS-BULGARIA-1300 that are placed above considerably activated earthquake sources. This component shows an increase of about 2–10 mV/m above sources, situated on mobile structures of the plates. The paper discusses the observed effects. It is represented also a statistical study of ionospheric effects 5–15 days before and 5–15 days after the earthquakes with magnitude M 4.8–7.9.

References 1

Alperovich, L. and Fedorov, E.: Perturbation of atmospheric conductivity as a cause of the lithosphere-ionosphere interaction, in: Atmospheric and Ionospheric Electromagnetic Phenomena Associated with Earthquakes, edited by: Hayakawa M., TERRAPUB, Tokyo 591–596, 1999.

Chmyrev, V. M., Isaev, N. V., Bilichenko, S. V., and Stanev, G. A.: Observation by space-born detectors of electric field and hydromagnetic waves in the ionosphere over an earthquake centre, Phys. Earth Plan. In., 57(1–2), 110–114, 1989.

Earthquake Summary Poster, available at: http://earthquake.usgs.gov/eqcenter/eqarchives/poster/2006/20060820.php, last access: 15 April, 2008.

Gagnon, K., Chadwell, C., Norabuena, E.: Measuring the onset of locking in the Peru-Chile Trench with GPS and acoustic measurements, Nature, 434, 205–208, 2005.

Goff, J., Walters, R., and Callaghan, F.: Tsunami Source Stady, National Institute of Water and Atmospheric Research, New Zeland, Enviroment Waikato Technical Report 2006/49, 1 pp., 26 pp., 2006.

Gousheva, M., Glavcheva, R., Danov, D., Angelov, P., and Hristov, P.: Influence of earthquakes on the electric field disturbances in the ionosphere on board of the Intercosmos-Bulgaria-1300 satellite, Compt. Rend. Acad. Bulg. Sci., 58(8), 911–916, 2005a.

Gousheva, M., Glavcheva, R., Danov, D., Angelov, P., Hristov, P., Kirov, B., and Georgieva, K.: Observation From The Intercosmos-Bulgaria-1300 Satellite Of Anomalies In The Ionosphere Associated With Seismic Activity, Poster Proceedings of 2nd International Conference on Recent Advances in Space Technologies: Space in the Service of Society, RAST'2005, 9–11~June~2005, Istanbul, Turkey, 119–123, 2005b.

Gousheva, M., Glavcheva, R., Danov, D., and Boshnakov, I.: Satellite observations of ionospheric disturbances associated with seismic activity, Compt. Rend. Acad. Bulg. Sci., 59(8), 821–826, 2006a.

Gousheva, M., Glavcheva, R., Danov, D., Angelov, P., Hristov, P., Kirov, B, and Georgieva, K.: Satellite monitoring of anomalous effects in the ionosphere probably related to strong earthquakes, Adv. Space Res., 37(4), 660–665, 2006b.

Gousheva, M., Glavcheva, R., Danov, D., Hristov, P., Kirov, B., and Georgieva, K.: Possible pre- and post- earthquake effects in the ionosphere, IEEE Proceedings of 3$^rd $ International Conference on Recent Advances in Space Technologies, 14–16~June~2007, Istanbul, Turkey, 754–759, 2007.

Gousheva, M., Glavcheva, R., Danov, D., Hristov, P., Kirov, B, and Georgieva, K.: Electric field and ion density anomalies in the mid latitude ionosphere: Possible connection with earthquakes?, Adv. Space Res., 42(1), 206–212, 2008a.

Gousheva, M., Danov, D., Hristov, P., and Matova, M.: Quasi-static electric fields phenomena in the ionosphere associated with pre- and post earthquake effects, Nat. Hazards Earth Syst. Sci., 8, 101–107, 2008b.

Hepper, J. P.: Empirical models of high-latitude electric field, J. Geophys. Res., 82, 1115–1125, 1977.

Heppner, J. P. and Maynard N. C.: Empirical High-Latitude Electric Field Models, J. Geophys. Res., 92, 4467–4489, 1987.

Heelis, R. A., Lowell J. K., and Spiro R. W.: A model of the high-latitude ionospheric convection, J. Geophys. Res., 87, 6339–6345, 1982.

Indonesia: available at: http://earthquake.usgs.gov/regional/world/indonesia/seismotectonics.php, last access: 10 June 2008.

Kim, V. P and Hegai, V. V.: A possible presage of strong earthquake in the night-time mid- latitude F2 region ionosphere, in: Atmospheric and Ionospheric Electromagnetic Phenomena Associated with Earthquakes, Hayakawa M., TERRAPUB, Tokyo, 619–628, 1999.

Kolobov, V. Y., Tikunov, Y. V., Travin, A. V., and Akimtsev, V. A.: Geochemistry of Volcanic Rocks of the New Hebrides Trench: Evidence of Changes in Geodynamic Regime, Geochemistry International, 43, 29–38, 2006.

Nanang, T.: Puspito and Gunawan Indra: Tsunami sourses in the Sumatra region, Indonesia and simulation of the 26~December 2004 Aceh tsunami, ISET Journal of Earthquake Technology, 42, 111–125, 2005.

Pedersen, A., Cattell, C. A., Falthammar, C.-G., Formisano, V., Lindqvist, P.-A., Mozer, F., and Torbert, R.: Quasistatic electric field measurements with spherical double probes on the GEOS and ISEE satellites, Space Sci. Rev., 37, 269–312, 1984.

Pedersen, A., Mozer, F., and Gustafsson, G.: Electric field measurements in a tenuous plasma with spherical double probes, in: Measurement Techniques in Space Plasmas: Fields (AGU Geophysical Monograph, 103), edited by: Borovsky, J., Pfaff, R., and Young, D., American Geophysical Union, 1–12, 1998.

Sorokin, V. M., Chmyrev, V. M., and Yaschenko, A. K.: Electrodynamic model of the lower atmosphere and ionosphere coupling, J. Atmos. Solar-Terr. Phys., 63, 1681–1691, 2001a.

Sorokin, V. M., Chmyrev, V. M., and Yaschenko, A. K.: Perturbation of the electric field in the Earth-ionospherhe layer at the charget aerosols injection, Geomagnetism and Aeronomy, 41(2), 187–191, 2001b.

Sorokin, V. M. and Chmyrev, V. M..: Electrodynamic model of ionospheric precursors to earthquakes and certain types of disasters, Geomagnetism and Aeronomy, 42, 784–792, 2002.

Sorokin, V. M., Chmyrev, V. M., and Yaschenko, A. K.: Possible DC electric field in the ionosphere related to seismicity, Advances in Space Research, 37, 4, 666–670, 2006.

Sorokin, V. M. and Yaschenko, A. K.: Electric field disturbances in the Earth-ionosphere layer, Adv. Space Res., 26(8), 1219–1223, 2000.

Sorokin, V. M., Yaschenko A. K., Chmyrev, V. M., and Hayakawa, M.: DC electric field amplification in the Mid-latitude ionosphere over seismically active faults, Nat. Hazards Earth Syst. Sci., 5, 661–666, 2005.

The Mid-Atlantic Ridge: 2nd International Mid Atlatic Ridge Expert Workshop, 27–28~March~2008, Azores, Potugal, available at: http://whc.unesco.org/en/activities/504/, last access: 14 June, 2008.

Walters, R., Goff, J., and Wang, K.: Tsunamigenic sources in the bay of plenty, New Zealand, Science of Tsunami Hazards, 24, 339–359, 2006