VLF/LF Radio Sounding of Ionospheric Perturbations Associated with Earthquakes

By Masashi Hayakawa. Italian National Conference on Sensors, 2007

149 citations recorded by the source corpus.

It is recently recognized that the ionosphere is very sensitive to seismic effects, and the detection of ionospheric perturbations associated with earthquakes, seems to be very promising for short-term earthquake prediction. We have proposed a possible use of VLF/LF (very low frequency (3-30 kHz) /low frequency (30-300 kHz)) radio sounding of the seismo-ionospheric perturbations. A brief history of the use of subionospheric VLF/LF propagation for the short-term earthquake prediction is given, followed by a significant finding of ionospheric perturbation for the Kobe earthquake in 1995. After showing previous VLF/LF results, we present the latest VLF/LF findings; One is the statistical correlation of the ionospheric perturbation with earthquakes and the second is a case study for the Sumatra earthquake in December, 2004, indicating the spatical scale and dynamics of ionospheric perturbation for this earthquake.

Subfields: Artificial Intelligence, Geophysics

View Paper: https://www.semanticscholar.org/paper/26bb75634f0c5e8e082070090ffdee0b3d6dec61

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

1. Lou‐Chuang Lee
2. Masashi Hayakawa
3. C. Kuo
4. J. Huba

In Geophysics

1. Masashi Hayakawa
2. C. Kuo
3. Alexandr Rozhnoi
4. Lou‐Chuang Lee
5. J. Huba
6. T. Horie
7. Y. Kasahara
8. F. Muto

Citations in the corpus

• A statistical study on the correlation between lower ionospheric perturbations as seen by subionospheric VLF/LF propagation and earthquakes (2010, methodology): “The details of the VLF/LF receiving system and the VLF/LF network are given in Hayakawa et al. [2004], Hayakawa [2007] , and Molchanov and Hayakawa [2008] and Hayakawa [2009].”
• An improved coupling model for the lithosphere‐atmosphere‐ionosphere system (2014, background): “…2004; Liu et al., 2009], DC electric field emissions/ULF/VHF [Varotsos, 2006; Schekotov et al., 2007; Smirnova and Hayakawa, 2007; Surkov and Hayakawa, 2007; Uyeda et al., 2009], amplitude and phase anomalies of subionospheric VLF/LF signals from powerful transmitters [Hayakawa, 2007;…”