Skip to main content

The observation of ULF emissions at Nakatsugawa in possible association with the 2004 Mid Niigata Prefecture earthquake

Abstract

The observation of ULF/ELF electromagnetic emissions at Nakatsugawa, Gifu, has indicated that ULF emissions in the frequency below 0.1 Hz take place about two-three weeks before the 2004 Mid Niigata Prefecture earthquakes. The most important support to this is based on the goniometric direction finding for those ULF emissions in the period of October 2–6, which indicates their azimuth being very close to the epicenters of the earthquake. So, these ULF emissions on October 2–6 are likely to be associated with the 2004 Mid Niigata Prefecture earthquake.

References

  • Hayakawa, M., Whistlers, Chapt. 7 in Handbook of Atmospheric Electrodynamics, edited by H. Volland, CRC Press, Boca Raton, 1995.

    Google Scholar 

  • Hayakawa, M. (ed.), Atmospheric and Ionospheric Electromagnetic Phenomena Associated with Earthquakes, Terra Sci. Pub. Co., Tokyo, 996 pp., 1999.

    Google Scholar 

  • Hayakawa, M. and K. Hattori, Ultra-low-frequency electromagnetic emissions associated with earthquakes, Special Issue on Recent Progress in Electromagnetic Theory and its Application, Inst. Electr. Engrs. Japan, Trans. Fundamentals and Materials, 124, 1101–1108, 2004.

    Google Scholar 

  • Hayakawa, M. and O. A. Molchanov (ed.), Seismo Electromagnetics: Lithosphere—Atmosphere—Ionosphere Coupling, TERRAPUB, Tokyo, 477 pp., 2002.

    Google Scholar 

  • Kawate, R., O. A. Molchanov, and M. Hayakawa, Ultra-low-frequency magnetic fields during the Guam earthquake of 8 August 1993 and their interpretation, Phys. Earth Planet. Inter., 105, 239–248, 1998.

    Article  Google Scholar 

  • Molchanov, O. A. and M. Hayakawa, Generation of ULF electromagnetic emissions by microfracturing, Geophys. Res. Lett., 22, 3091–3094, 1995.

    Article  Google Scholar 

  • Nickolaenko, A. P. and M. Hayakawa, Resonances the Earth-Ionosphere Cavity, Kluwer Acad. Pub., Dordrecht, 2002.

    Google Scholar 

  • Ohta, K., K. Umeda, N. Watanabe, and M. Hayakawa, ULF/ELF emissions observed in Japan, possibly associated with the Chi-Chi earthquake in Taiwan, Natural Hazards Earth System Sci., 1, 37–42, 2001.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Masashi Hayakawa.

Rights and permissions

Open Access  This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ohta, K., Watanabe, N. & Hayakawa, M. The observation of ULF emissions at Nakatsugawa in possible association with the 2004 Mid Niigata Prefecture earthquake. Earth Planet Sp 57, 1103–1108 (2005). https://doi.org/10.1186/BF03351889

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1186/BF03351889

Key words