Open AccessSpecific features of earth’s free oscillations after deep-focus sea of Okhotsk earthquake of May 24, 2013
Author(s) -
I. P. Kuzin,
I. P. Kuzin,
L. I. Lobkovsky,
Л. И. Лобковский,
К. А. Дозорова,
К. А. Дозорова
Publication year - 2019
Publication title -
doklady akademii nauk. rossijskaâ akademiâ nauk
Language(s) - English
Resource type - Journals
ISSN - 0869-5652
DOI - 10.31857/s0869-56524886651-654
Subject(s) - epicenter , deep focus earthquake , excitation , seismology , geology , earth (classical element) , mode (computer interface) , geophysics , surface wave , physics , optics , tectonics , quantum mechanics , computer science , subduction , mathematical physics , operating system
A description of initial excitation of spheroidal mode 0S2 initiated by the 2013 Sea of Okhotsk earthquake (Mw= 8.3) is presented. It is based on newly revealed fact of standing P-wave origination in the epicenter of the Sea of Okhotsk earthquake and excitation of traveling surface P-waves on the Earths surface by this wave. A new interpretation of the nature of free spheroidal Earths oscillations in case of strong earthquake (М 7,5) is proposed. The spheroidal mode 0S2 is interpreted as combination of standing and traveling P-waves, transferring the Earths strain energy.