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Hardware complex for recording soil gas concentrations and searching for precursor anomalies before strong earthquakes in South Kamchatka

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Abstract

At the Petropavlovsk-Kamchatsky geodynamic test site the instrumental complex has operated for the registration of subsurface gas concentration since 2006. In this paper the main components of the complex and their capabilities are described. To illustrate the work of the complex the dynamics of subsurface gas concentrations in the period from February to March 2011 (before and after the earthquake off the coast of Japan, March 11, 2011, M = 9.0) in one of the registration points was analyzed. These data indicate geodynamic processes during this period in the considered area at the point of subsurface gas registration. Selected dynamics anomalies of the subsurface gas concentrations can be regarded as a short-term remote precursor of the earthquake off the coast of Japan.

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Authors and Affiliations

  1. Kamchatka Division, Geophysical Survey, Russian Academy of Sciences, Petropavlovsk-Kamchatsky, Russia

    E. O. Makarov, P. P. Firstov & V. N. Voloshin

Authors
  1. E. O. Makarov
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  2. P. P. Firstov
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  3. V. N. Voloshin
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Correspondence to E. O. Makarov.

Additional information

Original Russian Text © E.O. Makarov, P.P. Firstov, V.N. Voloshin, 2012, published in Seismicheskie Pribory, 2012, Vol. 48, No. 2, pp. 5–14.

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Makarov, E.O., Firstov, P.P. & Voloshin, V.N. Hardware complex for recording soil gas concentrations and searching for precursor anomalies before strong earthquakes in South Kamchatka. Seism. Instr. 49, 46–52 (2013). https://doi.org/10.3103/S0747923913010064

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