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Doklady Earth Sciences

, Volume 488, Issue 2, pp 1250–1252 | Cite as

Peculiarities of the Earth’s Free Oscillations after the Sea of Okhotsk Deep-Focus Earthquake of May 24, 2013

  • I. P. KuzinEmail author
  • L. I. Lobkovsky
  • K. A. Dozorova
GEOPHYSICS
  • 7 Downloads

Abstract

A description of the initial excitation of spheroidal mode 0S2 initiated by the 2013 Sea of Okhotsk earthquake (Mw = 8.3) is presented. It is based on the newly revealed fact of the origination of a standing P-wave in the epicenter of the Sea of Okhotsk earthquake and excitation of the traveling surface P-waves on the Earth’s surface by this wave. A new interpretation of the nature of the Earth’s free spheroidal oscillations in the case of a strong earthquake (M ≥ 7.5) is proposed. The spheroidal mode 0S2 is interpreted as a combination of standing and traveling P-waves, transferring the energy of Earth’s deformations.

Notes

FUNDING

This work is implemented in the framework of the State Contract, project no. 0149-2019-0005, for the Shirshov Institute of Oceanology, Russian Academy of Sciences.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • I. P. Kuzin
    • 1
    Email author
  • L. I. Lobkovsky
    • 1
  • K. A. Dozorova
    • 1
  1. 1.Shirshov Institute of Oceanology, Russian Academy of SciencesMoscowRussia

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