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The Strong March 25, 2020 Earthquake East of the Northern Kuril Islands

Authors
  • Lutikov, A. I.1, 2
  • Dontsova, G. Yu.1, 2
  • Likhodeev, D. V.1
  • Rogozhin, E. A.1, 2
  • 1 Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, 123242, Russia , Moscow (Russia)
  • 2 Federal Research Center Geophysical Survey, Russian Academy of Sciences, Obninsk, Kaluga oblast, 249035, Russia , Obninsk (Russia)
Type
Published Article
Journal
Seismic Instruments
Publisher
Pleiades Publishing
Publication Date
May 25, 2021
Volume
57
Issue
3
Pages
276–286
Identifiers
DOI: 10.3103/S0747923921030099
Source
Springer Nature
Keywords
License
Yellow

Abstract

AbstractThe paper presents seismological, forecasting, and seismotectonic data on the strong March 25, 2020 earthquake in the Northern Kurils. The collected materials on an unusual deep lithospheric earthquake in the border area of the Northern Kurils and Southern Kamchatka made it possible to understand the structure of the source of this event, as well as to determine the features of the seismic process in it. The variability of release of the scalar seismic moment (M0) made it possible to trace the seismic history over the past 110 years in the preparation zone of the March 25 earthquake. The dynamics of development of the aftershock process in terms of the release of M0 was also studied.

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