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

IF 0.9 4区地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS

Journal of Volcanology and Seismology Pub Date : 2025-06-24 DOI:10.1134/S0742046325700101

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

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Abstract

This paper presents instrumental parameters and macroseismic data for the Shipunsky earthquake of August 17, 2024, ML = 7.0, M_W = 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.

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2024年8月17日在堪察加半岛东海岸发生的7.0级西邦斯基地震

本文介绍了2024年8月17日西邦斯基7.0级地震的仪器参数和宏观地震资料。根据主震后第一个月的观测，讨论了其构造背景和余震过程。本文介绍的西邦斯基地震及其最大余震的机制和参数是由KB GS RAS开发的原始地震矩张量计算程序导出的。这些事件的破裂方向和破裂面方向使我们能够把它们的发生与太平洋板块在堪察加半岛所在的鄂霍次克板块下的俯冲联系起来。西邦斯基地震没有造成人员伤亡和建筑物损坏。在西邦斯基半岛观测到最大的宏观地震效应，震级为SIS-17级6级（GOST P 57546-2017）；堪察加彼得罗巴甫洛夫斯克镇的震动强度为5-6级。没有发布海啸警报，也没有海啸记录。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Volcanology and Seismology 地学-地球化学与地球物理

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

>12 weeks

期刊介绍： Journal of Volcanology and Seismology publishes theoretical and experimental studies, communications, and reports on volcanic, seismic, geodynamic, and magmatic processes occurring in the areas of island arcs and other active regions of the Earth. In particular, the journal looks at present-day land and submarine volcanic activity; Neogene–Quaternary volcanism; mechanisms of plutonic activity; the geochemistry of volcanic and postvolcanic processes; geothermal systems in volcanic regions; and seismological monitoring. In addition, the journal surveys earthquakes, volcanic eruptions, and techniques for predicting them.