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Abstract <p>This paper presents instrumental parameters and macroseismic data for the Shipunsky earthquake of August 17, 2024, <i>ML =</i> 7.0<i>, M</i><sub>W</sub> <i>=</i> 7.0<i>.</i> We discuss its tectonic setting and the aftershock process based on the first month of observation after the main event. The mechanisms and parameters for the Shipunsky earthquake and its largest aftershocks presented here were derived by an original procedure to calculate seismic moment tensors developed at the KB GS RAS. The directions of rupture and the orientations of rupture planes for these events enable us to relate their generation to the subduction of the Pacific plate under the Okhotsk plate on which Kamchatka lies. The Shipunsky earthquake has not caused loss of human lives and damage to buildings. Its maximum macroseismic effect was observed in the Shipunsky Peninsula, which was shaking of intensity 6 on the SIS-17 scale (GOST P 57546–2017); the intensity of shaking in the town of Petropavlovsk-Kamchatsky was 5–6. No tsunami alert has been issued, and no tsunami has been recorded.</p>

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The MW 7.0 Shipunsky Earthquake of August 17, 2024 off the East Coast of Kamchatka

  • 期刊论文

  • 发表日期：

    2025年6月24日

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  • D. V. Chebrov,
  • E. A. Matveenko,
  • I. R. Abubakirov,
  • S. Ya. Droznina,
  • A. V. Lander,
  • S. V. Mityushkina,
  • V. M. Pavlov,
  • A. A. Raevskaya,
  • V. A. Saltykov,
  • S. L. Senyukov,
  • N. N. Titkov

摘要

Abstract

This paper presents instrumental parameters and macroseismic data for the Shipunsky earthquake of August 17, 2024, ML = 7.0, MW = 7.0. We discuss its tectonic setting and the aftershock process based on the first month of observation after the main event. The mechanisms and parameters for the Shipunsky earthquake and its largest aftershocks presented here were derived by an original procedure to calculate seismic moment tensors developed at the KB GS RAS. The directions of rupture and the orientations of rupture planes for these events enable us to relate their generation to the subduction of the Pacific plate under the Okhotsk plate on which Kamchatka lies. The Shipunsky earthquake has not caused loss of human lives and damage to buildings. Its maximum macroseismic effect was observed in the Shipunsky Peninsula, which was shaking of intensity 6 on the SIS-17 scale (GOST P 57546–2017); the intensity of shaking in the town of Petropavlovsk-Kamchatsky was 5–6. No tsunami alert has been issued, and no tsunami has been recorded.