Near-seismic effects in ULF fields and seismo-acoustic emission : statistics and explanation

  title={Near-seismic effects in ULF fields and seismo-acoustic emission : statistics and explanation},
  author={O. Yu. Molchanov and Alexander Schekotov and M. S. Solovieva and Emilie Fedorov and V P Gladyshev and Evgenii I. Gordeev and V. N. Chebrov and D. Saltykov and Valentin Sinitsin and Kazuhiro Hattori and Masashi Hayakawa},
Preseismic intensification of fracturing has been investigated from occurrence analysis of seismo-acoustic pulses (SA foreshocks) and ULF magnetic pulses (ULF foreshocks) observed in Karimshino station in addition to seismic foreshocks. Such analysis is produced for about 40 rather strong and nearby isolated earthquakes during 2 years of recording. It is found that occurrence rate of SA foreshocks increases in the interval ( −12, 0 h) before main shock with 3-times exceeding of background level… CONTINUE READING


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