High-energy charged particle bursts in the near-Earth space as earthquake precursors

S Yu Aleksandrin,A M Galper,A M Murashov,P Picozza,S V Koldashov,L A Grishantzeva,S A Voronov,V Sgrigna,L V Maslennikov

doi:10.5194/angeo-21-597-2003

S Yu Aleksandrin, A M Galper + Show 7 more

Open Access

https://doi.org/10.5194/angeo-21-597-2003

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Abstract

Abstract. The experimental data on high-energy charged particle fluxes, obtained in various near-Earth space experiments (MIR orbital station, METEOR-3, GAMMA and SAMPEX satellites) were processed and analyzed with the goal to search for particle bursts. Particle bursts have been selected in every experiment considered. It was shown that the significant part of high-energy charged particle bursts correlates with seismic activity. Moreover, the particle bursts are observed several hours before strong earthquakes; L-shells of particle bursts and corresponding earthquakes are practically the same. Some features of a seismo-magnetosphere connection model, based on the interaction of electromagnetic emission of seismic origin and radiation belt particles, were considered. Key words. Ionospheric physics (energetic particles, trapped; energetic particles, precipitating; magnetosphere-ionosphere interactions)

Highlights

Correlation between short-term variations of highenergy charged particle fluxes in near-Earth space and seismic activity was pointed out for the first time at the end of the 1980s (Voronov et al, 1987; Voronov et al, 1989)
The experimental data on high-energy charged particle fluxes, obtained in various near-Earth space experiments (MIR orbital station, METEOR-3, GAMMA and SAMPEX satellites) were processed and analyzed with the goal to search for particle bursts
The detailed study of electron and proton flux variations below the radiation belt was continued by MARIA-2 magnetic spectrometer on board the MIR station, ELECTRON instruments on board INTERCOSMOSBULGARIA-1300 and METEOR-3 satellites (Galper et al, 1989; Voronov et al, 1990)

Summary

Introduction

Correlation between short-term variations (bursts) of highenergy charged particle fluxes in near-Earth space and seismic activity was pointed out for the first time at the end of the 1980s (Voronov et al, 1987; Voronov et al, 1989) This conclusion was made on the basis of results, which were obtained from the MARIA experiment on board the SALYUT7 orbital station. In order to select charged particle bursts we used the counting rate information of the instruments mentioned above This information was obtained processing measurement data for the MARIA-2 and GAMMA-1 experiments. On the other hand, applying too large | L| values takes into account earthquakes that are far away from the particle burst L-shell and so we increase the portion of background events in the total statistics In this case the peak confidence level decreases

Discussion

Conclusion