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Russian Journal of Pacific Geology

, Volume 12, Issue 6, pp 500–510 | Cite as

Geological–Geophysical Model of Northeastern Kamchatka and Regional Seismic Activity in 2013

  • A. G. NurmukhamedovEmail author
  • M. D. Sidorov
  • V. V. Nedyad’ko
Article
  • 5 Downloads

Abstract

We analyze the results of geophysical studies of the crust and upper mantle which were carried out in 2000–2013 in the Kamchatka isthmus area. The obtained data reveal obduction (thrusting of suboceanic lithosphere upon the margin of the continental one) in the study area, indicating potentially high seismic hazard in the entire frontal zone of obduction. A comprehensive geological–geophysical model is developed along the profile that passes between Ossora and Tilichiki settlements, along the obduction front. In 2013, strong seismic activation was recorded in the northeastern part of the region; the Il’pyr earthquake was the first in the series. The comparison between modeling results and the real seismic lineament shows that tectonic stresses accumulate on the faults between lithospheric blocks and then release in the form of seismic events, as was recorded in the obduction zone between Ossora and Tilichiki settlements in March–May 2013.

Keywords:

obduction front faults Il’pyr earthquake geological–geophysical model Kamchatka Peninsula 

Notes

REFERENCES

  1. 1.
    S. E. Aprelkov, G. I. Dekina, and S. V. Popruzhenko, “Geological structure of the Koryak highland and Penzhina River basin,” Tikhookean. Geol. 16 (2), 46–57 (1997).Google Scholar
  2. 2.
    V. V. Belyavskii and E. D. Aleksanova, “Three-dimensional geoelectrical model of Southern Kamchatka,” Izv. Phys. Solid Earth 50 (1), 9–31 (2014).Google Scholar
  3. 3.
    V. V. Belyavskii and A. G. Yakovlev, “The 3D profile inversion of the MTS–MVS data by the example of the Shiveluch Volcanic Zone in the Kamchatka Peninsula,” Izv. Phys. Solid Earth 52 (1), 57–77 (2016).Google Scholar
  4. 4.
    Geological Map and Map of Mineral Resources of the Kamchatka Oblast and Koryak Autonomous Okrug, 1 : 1 500 000, Ed. by A.F. Litvinova, B.A. Markovskogo, and V.P. Zaitseva (VSEGEI, St. Petersburg, 2005) [in Russian].Google Scholar
  5. 5.
    V. I. Levina, A. V. Lander, and E. I. Ivanova, “Seismicity of the source of the April 2006 Olyutor earthquakes, Geophysical Monitoring and Problems of Seismic Safety of the Russian Far East. Proceedings of the Regional Scientific-Technical Conference (GS RAN, Petropavlovsk-Kamchatskii, 2008), vol. 1, pp. 184–188 [in Russian].Google Scholar
  6. 6.
    V. V. Mishin, A. G. Nurmukhamedov, and S. P. Belousov, “Paleosuboceanic type of the Earth’s crust on northeastern Kamchatka,” Tikhookean. Geol. 22 (5), 58–72 (2003).Google Scholar
  7. 7.
    A. G. Nurmukhamedov, “Results of interpretation of deep geophysical studies performed in the Kamchatka isthmus and continental part of the Kamchatka krai in the light of seismic activity in the Olyutorka area, Geophysical Monitoring and Problems of Seismic Safety of the Russian Far East. Proceedings of the Regional Scientific-Technical Conference (GS RAN, Petropavlovsk-Kamchatskii, 2008), vol. 1, pp. 194–199 [in Russian].Google Scholar
  8. 8.
    A. G. Nurmukhamedov and Yu. F. Moroz, “Specifics of geological structure of the northeastern Koryak–Kamchatka fold area: evidence from deep geophysical data,” Vestn. KRAUNTs. Nauki O Zemle, No. 1, 125–133 (2008).Google Scholar
  9. 9.
    A. G. Nurmukhamedov and Yu. F. Moroz, “Deep structure of the northeastern Koryak–Kamchatka fold area: regional geophysical data,” Geofiz. Zh. 31 (3), 74–83 (2009).Google Scholar
  10. 10.
    A. G. Nurmukhamedov, Extended Abstract of Candidate’s Dissertation in Geology and Mineralogy (IZK, Irkutsk, 2010).Google Scholar
  11. 11.
    A. G. Nurmukhamedov, V. V. Nedyad’ko, V. A. Rakitov, and M. S. Lipat’ev, “Lithosphere boundary on Kamchatka based on the earthquake converted wave method,” Vestn. KRAUNTs. Nauki O Zemle, No. 1, 35–52 (2016).Google Scholar
  12. 12.
    I. V. Pomerantseva and A. N. Mozzhenko, Seismic Studies using the Zemlya Device, (Nedra, Moscow, 1977) [in Russian].Google Scholar
  13. 13.
    O. G. Popova, V. V. Nedyad’ko, M. S. Lipat’ev, and V. V. Nurmukhamedov, “Opportunities of assessment of strain state of the environment during profile ECWM observations: evidence from data obtained the area of the 2006 Olyutorka earthquake on Kamchatka,” Structure, Properties, Dynamics, and Metallogeny of lithosphere of the East European Platform. Proceedings of 16th International Conference, Ed. by N. M. Chernyshev and A. A. Malovichko (VGU, Voronezh, 2010), Vol. 2, pp. 149–153 [in Russian].Google Scholar
  14. 14.
    V. A. Saltykov and S. Ya. Droznina, “March 13, 2003 Il’pyrskoe earthquake (Mw = 5.8), Northern Kamchatka: anomalous extenstion of focal zone as artefact,” Vestn. KRAUNTs. Nauki O Zemle, No. 2, 130–136 (2014).Google Scholar
  15. 15.
    N. I. Seliverstov, Geodynamics of the Junction Zone of the Kurile–Kamchatka and Aleutian Island Arcs, (KamGU, Petropavlovsk-Kamchatskii, 2009) [in Russian].Google Scholar
  16. 16.
    M. D. Sidorov, “Mapping of Mesozoic basement of the Avacha–Koryak volcano groups (Kamchatka) using density modeling profile,” Vulkanol. Seismol., Nos. 4–5, 99–105 (1994).Google Scholar
  17. 17.
    M. D. Sidorov and P. M. Novakov, “Density model of the junction zone of the Kamchatka and Aleutian island arcs,” Regional. Geol. Metallogen., No. 58, 59–65 (2014).Google Scholar
  18. 18.
    M. D. Sidorov, " Density modeling of magmatic structures in the promising Kolpakova nickeliferous district (Median Massif, Kamchatka)," Russ. J. Pac. Geol. 9 (3), 193–202 (2015).Google Scholar
  19. 19.
    Physical Properties of Rocks and Mineral Resource (Petrophysics): Geophysical Text Book, Ed. by N.B. Dortman (Nedra, Moscow, 1984) [in Russian].Google Scholar
  20. 20.
    A. I. Khanchuk, V. N. Grigor’ev, V. V. Golozubov, G. I. Govorov, K. A. Krylov, V. B. Kurnosoe, I. V. Panchenko, I. E. Pral’nikova, and O. V. Chudaev, Kuyul Ophiolite Terrane (DVGI DVO AN SSSR, Vladivostok, 1990) [in Russian].Google Scholar
  21. 21.
    V. E. Khain and M. G. Lomize, “Obduction,” in Geotectonics with Geodynamic Background (Izd-vo Mosk. un-ta, Moscow, 1995), pp. 161–167 [in Russian].Google Scholar
  22. 22.
    M. N. Shapiro and A. V. Solov’ev, “Formation of the Olyutorsky–Kamchatka foldbelt: a kinematic model,” Russ. Geol. Geophys. 50 (8), 660–673 (2009).Google Scholar
  23. 23.
    W. Rodi and R. L. Mackie, “Nonlinear conjugate gradients algorithm for 2-D magnetotelluric inversion,” Geophysics 66, 174–187 (2001).Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • A. G. Nurmukhamedov
    • 1
    Email author
  • M. D. Sidorov
    • 1
  • V. V. Nedyad’ko
    • 2
  1. 1.Research Geotechnological Center of the Far East Branch, Russian Academy of SciencesPetropavlovsk KamchatskyRussia
  2. 2.Geon Center, Branch of JSC VNIIGeophizikaMoscowRussia

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