Izvestiya, Atmospheric and Oceanic Physics

, Volume 55, Issue 8, pp 816–839 | Cite as

Relationship of the Vp/Vs Parameter with the State of the Magmatic Substance and Activity of the Northern Group of Volcanoes in Kamchatka

  • L. B. SlavinaEmail author
  • M. S. Kuchai
  • D. V. Likhodeev
  • S. L. Senyukov


The dynamics of the volcanic activity, magmatic feeding system, accumulation, movement, and composition of magmas, and structure of the roots of the Northern group of volcanoes (NGV) in Kamchatka are considered. The results of monitoring the field of the ratio of seismic P- and S-wave velocities, the VP/VS parameter in the region of the Klyuchevskaya volcanic group based on the data of the volcanic earthquakes registered by a network of telemetric seismic stations are presented. The parameter changes in space and time during the periods of volcanic activity development. Each segment of the volcanic structure and period of activity is characterized by the own behavior of the field of VP/VS values. In the intermediate magmatic chamber, low VP/VS values are observed beneath the Klyuchevskoi volcano at a depth of 8 to 10 km and beneath Plosky Tolbachik at a depth of 3 to 5 km, which is related to the state of the substance and temperature in these areas, and the entry of a new melt portion of magma and the fluid-gas component from the crust and the mantle. The relation of volcanic earthquakes and earthquakes in the focal zone of Kamchatka, i.e., the ratio of the subduction zone (the sinking Pacific Ocean Plate) and the feeding source of volcanoes, is considered. It is shown that the Klyuchevskoi peripheral chamber is not the only area feeding the NGV. According to the values of the VP/VS parameter, the volcanoes have different magma compositions, which is determined by the physicochemical and temperature features of the medium. In our opinion, the feeding area of volcanoes from the Northern group is a neutral layer that we have identified.


volcano feeding system magma composition earthquake seismic wave propagation velocity 



This work was carried out under a state task of the Schmidt Institute of Physics of the Earth, Russian Academy of Sciences.


The authors declare that they have no conflict of interest.


  1. 1.
    Balesta, S.T., Zemnaya kora i magmaticheskie ochagi oblastei sovremennogo vulkanizma (The Earth’s Crust and Magmatic Sources of Modern Volcanism Regions), Moscow, Nauka, 1981.Google Scholar
  2. 2.
    Catalog of earthquakes from 1997 to 2008. http://www. Scholar
  3. 3.
    Churikova, T.G., Gordeichik, B.N., and Ivanov, B.V., Petrochemistry of Kamen Volcano: A comparison with neighboring volcanoes of the Klyuchevskoy group, J. Volcanol. Seismol., 2012, vol. 6, no. 3, pp. 150–171.CrossRefGoogle Scholar
  4. 4.
    Dobretsov, N.L., Kulakov, I.Yu., and Litasov, Yu.D., Migration paths of magma and fluids and lava compositions in Kamchatka, Russ. Geol. Geophys., 2012, vol. 53, no. 12, pp. 1253–1275.CrossRefGoogle Scholar
  5. 5.
    Fedotov, S.A., Magmaticheskie pitayushchie sistemy i mekhanizm izverzheniya vulkanov (Magmatic Supply Systems and the Mechanism of Volcanic Eruption), Moscow, Nauka, 2006.Google Scholar
  6. 6.
    Fedotov, S.A. and Farberov, A.I., On shielding of transverse seismic waves in the magmatic source in the upper mantle near the Avachinskaya group of volcanoes in Kamchatka, Vulkanizm i glubinnoe stroenie Zemli (Volcanism and Deep Structure of the Earth), Moscow, Nauka, 1966, pp. 44–45.Google Scholar
  7. 7.
    Fedotov, S.A. and Slavina, L.B., Evaluation of longitudinal wave speeds in the upper mantle under the northwestern part of the Pacific Ocean and Kamchatka, Izv. Akad. Nauk SSSR: Fiz. Zemli, 1968, no. 2, pp. 8–32.Google Scholar
  8. 8.
    Fedotov, S.A., Zharinov, N.A., and Gontovaya, L.I., The Magmatic system of the Klyuchevskaya group of volcanoes inferred from data on its eruptions, earthquakes, deformation, and deep structure, J. Volcanol. Seismol., 2010, vol. 4, no. 1, pp. 1–33.CrossRefGoogle Scholar
  9. 9.
    Fedotov, S.A., Slavina, L.B., Senyukov, S.L., and Kuchai, M.S., Seismic processes and migration of magma during the great Tolbachik fissure eruption of 1975–1976 and Tolbachik fissure eruption of 2012–2013, Kamchatka Peninsula, Izv., Atmos. Ocean. Phys., 2015, vol. 51, no. 7, pp. 667–687.CrossRefGoogle Scholar
  10. 10.
    Fizicheskie svoistva gornykh porod i poleznykh iskopaemykh: Spravochnik geofizika (Physical Properties of Rocks and Mineral Deposits), Dortman, N.B., Ed., Moscow: Nedra, 1984.Google Scholar
  11. 11.
    Garagash, I.A., On brittle fracture of elastic bodies with a large number of cracks, Mekhanika tektonicheskikh protsessov (Mechanics of Tectonic Processes), Alma-Ata: Nauka, 1983, pp. 61–74.Google Scholar
  12. 12.
    Garagash, I.A. and Khaidarov, M.S., Model of the seismic process development in the zone of tectonic fault before a strong earthquake, Seismol. Issled., 1989, no. 11, pp. 88–97.Google Scholar
  13. 13.
    Gorbatsevich, F.F., Struktura, svoistva, sostoyanie porod i geodinamika v geoprostranstve Kol’skoi sverkhglubokoi skvazhiny (SG-3) (The Structure, Rock State, and Geodynamics in the Geospace of the Kola Superdeep Borehole (SB-3)), St. Petersburg: Nauka, 2015.Google Scholar
  14. 14.
    Gordeev, E.I. and Dobretsov, N.L., Tolbachinskoe treshchinnoe izverzhenie 2012–2013 gg. (TTI-50) (The Tolbachin Fractured Eruption of 2012–2013 (FTE-50)), Novosibirsk: SO RAN, 2017.Google Scholar
  15. 15.
    Ivanov, A.I., Koulakov, I.Yu., West, M., Jakovlev, A.V., Gordeev, E.I., Senyukov, S.L., and Chebrov, V.N., Magma source beneath the Bezymianny volcano and its interconnection with Klyuchevskoy inferred from local earthquake seismic tomography, Volcanol. Geotherm. Res., 2016, vol. 323, pp. 62–71. CrossRefGoogle Scholar
  16. 16.
    Kadik, A.A., Maksimov, A.P., and Ivanov, B.V., Fiziko–khimicheskie usloviya kristallizatsii i genezis andezitov (Physical and Chemical Conditions of the Crystallization and Genesis of Andesites), Moscow, Nauka, 1986.Google Scholar
  17. 17.
    Koulakov, I., Gordeev, E.I., Dobretsov, N.L., Vernikovsky, V.A., Senyukov, S., and Jakovlev, A., Feeding volcanoes of the Kluchevskoy group from the results of local earthquake tomography, Geophys. Res. Lett., 2011, vol. 38, no. 9. CrossRefGoogle Scholar
  18. 18.
    Koulakov, I., West, M., and Izbekov, P., Fluid ascent during the 2004–2005 unrest at Mt. Spurr inferred from seismic tomography, Geophys. Res. Lett., 2013, vol. 40, no. 17, pp. 4579–4582. CrossRefGoogle Scholar
  19. 19.
    Kuznetsov, P.Y., Koulakov, I., Jakovlev, A., Abkadyrov, I., Deev, E., Gordeev, E.I., Senyukov, S., El-Sami, Kh., and Al-Arifi, N., Structure of volatile conduits beneath Gorely volcano (Kamchatka) revealed by local earthquake tomography, Geoscience, 2017, vol. 7, no. 4, pp. 111–127. CrossRefGoogle Scholar
  20. 20.
    Levykin, A.I. and Faberov, A.I., Longitudinal wave speeds in hyperbasitic xenoliths of the Avacha volcano at a pressure of up to 27 000 kg/cm2, Ksenolity i gomeogennye vklyucheniya (Xenoliths and Homeogenic Inclusions), Moscow, Nauka, 1969, pp. 36–39.Google Scholar
  21. 21.
    Nechaev, A.M., Kamchatka: Tsarstvo vulkanov (Kamchatka: Kingdom of Volcanoes), Moscow, Logata, 2008.Google Scholar
  22. 22.
    Nechaev, A.M., On the mechanism of volcanic eruption, Fiz. Ekol., 2012, no. 19, pp. 551–568.Google Scholar
  23. 23.
    Senyukov, S.L., Monitoring of volcanic activity in Kamchatka by remote observation tools in 2000–2004, Vulkanol. Seismol., 2006, no. 3, pp. 1–11.Google Scholar
  24. 24.
    Senyukov, S.L., Monitoring and prediction of volcanic activity in Kamchatka from seismological data: 2000–2010, J. Volcanol. Seismol., 2013, vol. 7, no. 1, pp. 86–97.CrossRefGoogle Scholar
  25. 25.
    Senyukov, S.L., Shapiro, N.M., Droznina, S.Ya., Droznin, D.V., Nuzhdina, I.N., and Bliznetsov, V.E., Periodicities and regularities in volcanic activity of the Severnaya group in Kamchatka in 2000–2016, Shestaya nauch.-tekh. konf. “Problemy kompleksnogo geofizicheskogo monitoringa Dal’nego Vostoka Rossii” (The Sixth Scientific and Technical Conference “Problems in Integrated Geophysical Monitoring of the Russian Far East”), Petropavlovsk-Kamchatskii, 2017.Google Scholar
  26. 26.
    Slavina, L.B. and Myachkin, V.V., Kinematic precursors of large seismic events: The method and results from earthquake prediction in Kamchatka, Geofizicheskie issledovaniya (Geophysical Studies), Moscow: IFZ RAN, 2005, vol. 3, pp. 24–37.Google Scholar
  27. 27.
    Slavina, L.B., Garagash, I.A., Gorel’chik, V.I., et al., Velocity structure and the stress–strain state in the Earth’s crust in the area of the Klyuchevskoy group of volcanoes in Kamchatka, Vulkanol. Seismol., 2001, no. 1, pp. 49–59.Google Scholar
  28. 28.
    Slavina, L.B., Pivovarova, N.B., and Rogozhin, E.A., Assessment of the seismic situation in Kamchatka by monitoring data on the prognostic parameter TAU, Geofiz. Issled., 2007, no. 8, pp. 3–12.Google Scholar
  29. 29.
    Slavina, L.B., Pivovarova, N.B., and Senyukov, S.L., The dynamics of the velocity field beneath the North group of volcanoes, Kamchatka, and its relationship to the evolution of volcanic activity, J. Volcanol. Seismol., 2012a, vol. 6, no. 2, pp. 100–115.CrossRefGoogle Scholar
  30. 30.
    Slavina, L.B., Pivovarova, N.B., and Senyukov S.L., Velocity structure of the crust and upper mantle at the northern group of Kamchatka volcanoes (Based on the travel time of P-waves from volcanic earthquakes), Izv., Atmo-s. Ocean. Phys., 2012b, vol. 48, no. 7, pp. 696–705.CrossRefGoogle Scholar
  31. 31.
    Slavina, L.B., Kuchai, M.S., Likhodeev, D.V., and Abdullaeva, R.R., Estimation of stress/strain state of tectonic structures using V P/V S ratios: A case study of seismically active zones of the Greater Caucasus, Kura depression, Transcaucasia, and the western Caspian region, Seism. Instrum., 2018, vol. 54, no. 1, pp. 78–100. CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • L. B. Slavina
    • 1
    Email author
  • M. S. Kuchai
    • 1
  • D. V. Likhodeev
    • 1
  • S. L. Senyukov
    • 2
  1. 1.Schmidt Institute of Physics of the Earth, Russian Academy of SciencesMoscowRussia
  2. 2.Kamchatka Branch of the Federal Research Center Unified Geophysical Survey, Russian Academy of SciencesPetropavlovsk-KamchatskyRussia

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