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has been cited by the following article:

• TITLE: Explosions and seismic phenomena based on exciting of acoustic-electromagnetic waves

  AUTHORS: S. Koshevaya, V. Grimalsky, G. Urquiza, M. Tecpoyotl, A. Kotsarenko, V. Yutsis, N. Makarets

  KEYWORDS: Underground Explosion; Nonlinear Passing of Acoustic Waves; Piezoelectric and Magnetic Plates; Difference Between Natural Seismic; Volcanic and Industrial Events

  JOURNAL NAME: Natural Science, Vol.4 No.8A, August 14, 2012

  ABSTRACT: During earthquakes and strong underground explosions it is possible to observe two different effects. The first one is connected with the destruction of media, and this causes acoustic and later hybrid acoustic-electromagnetic waves in an epicenter in the atmosphere and in the ionosphere. Another one is connected with cracks in crystals of rocks, which seems more interesting, because it is possible to recognize the natural earthquakes and industrial explosions. In the first effects due to nonlinear elastic modules the acoustic waves move through the lithosphere and transform their spectra from VLF (very low frequencies ~ 1 - 10 kHz) at the depth of about 30 km into the lower part of ELF (extremely low frequencies, ~ 3 Hz - 1 kHz) on the Earth’s surface, then they pass the atmosphere and penetrate into the ionosphere. During the nonlinear acoustic passage through the atmosphere and the ionosphere, the spectrum transforms from ELF into ULF (ultra low frequencies,