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On the relation between high frequency acoustic emissions in near-surface rocks and the electric field in the near-ground atmosphere |
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| Authors: | A V Kuptsov Yu V Marapulets M A Mishchenko O P Rulenko B M Shevtsov A O Shcherbina |
| Institution: | (1) Institute of Cosmophysical Research and Radio Wave Propagation, Far East Division, Russian Academy of Sciences village of Paratunka, Elizovo District, Kamchatka Oblast’, 684034, Russia;(2) Institute of Volcanology and Seismology, Far East Division, Russian Academy of Sciences, Petropavlovsk-Kamchatskii, 683006, Russia |
| Abstract: | A field instrument package was installed for synchronous measurements of acoustic emission in rocks at frequencies of 0.1–10000 Hz and the vertical gradient of electric potential in near-ground atmosphere. These investigations for the first time revealed a relationship between emission disturbances in the kilohertz frequency range due to deformation of near-surface rocks and the electric field. The relationship may be observed both during seismically quiet periods and at the final phase of earthquake precursory periods. |
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