The seismic rupture surface model of the august 17, 2024 Shipunski, Kamchatka, earthquake
The study presents a rupture surface model of the Shipunsky earthquake. The model consists of a single plane with a dip angle of 30°, a strike of 211°, and depths ranging from 25 to 49 km. Compared to USGS solution, the rupture surface is shifted away from the continent and extended along dip, which...
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| Format: | Article |
| Language: | Russian |
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Institute of Volcanology and Seismology FEB RAS
2025-03-01
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| Series: | Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле |
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| Online Access: | http://www.kscnet.ru/journal/kraesc/article/view/843 |
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| author | А.M. Konvisar E.P. Timoshkina N.N. Titkov V.O. Mikhailov M.S. Volkova V.B. Smirnov D.V. Chebrov |
| author_facet | А.M. Konvisar E.P. Timoshkina N.N. Titkov V.O. Mikhailov M.S. Volkova V.B. Smirnov D.V. Chebrov |
| author_sort | А.M. Konvisar |
| collection | DOAJ |
| description | The study presents a rupture surface model of the Shipunsky earthquake. The model consists of a single plane with a dip angle of 30°, a strike of 211°, and depths ranging from 25 to 49 km. Compared to USGS solution, the rupture surface is shifted away from the continent and extended along dip, which corresponds better to the aftershock cloud distribution according to the Kamchatka branch of the Federal Research Center «Unified Geophysical Service of RAS». The rupture exhibited nearly pure thrust, with a maximum displacement of 0.88 m and an average displacement of 0.79 m, corresponding to a seismic moment of 2.9×1019 N·m (MW = 6.9). The obtained model is in good agreement with GPS data. The model allowed for the calculation of theoretical displacement fields on the Earth’s surface in the satellite line-of-sight direction. A qualitative comparison with displacements derived from Sentinel-1A radar images was made. |
| format | Article |
| id | doaj-art-94cc0f49a7d64c919737c514bfbd9a03 |
| institution | DOAJ |
| issn | 1816-5524 1816-5532 |
| language | Russian |
| publishDate | 2025-03-01 |
| publisher | Institute of Volcanology and Seismology FEB RAS |
| record_format | Article |
| series | Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле |
| spelling | doaj-art-94cc0f49a7d64c919737c514bfbd9a032025-08-20T03:06:44ZrusInstitute of Volcanology and Seismology FEB RASВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле1816-55241816-55322025-03-01651182710.31431/1816-5524-2025-1-65-18-271125The seismic rupture surface model of the august 17, 2024 Shipunski, Kamchatka, earthquakeА.M. Konvisar0E.P. Timoshkina1N.N. Titkov2V.O. Mikhailov3M.S. Volkova4V.B. Smirnov5D.V. Chebrov6Shmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia; Kamchatka Branch of the Geophysical Survey, Russian Academy of Sciences, Petropavlovsk-Kamchatsky, RussiaShmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, RussiaKamchatka Branch of the Geophysical Survey, Russian Academy of Sciences, Petropavlovsk-Kamchatsky, RussiaShmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, RussiaShmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, RussiaShmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia; Moscow State University, Faculty of Physics, Moscow, RussiaKamchatka Branch of the Geophysical Survey, Russian Academy of Sciences, Petropavlovsk-Kamchatsky, RussiaThe study presents a rupture surface model of the Shipunsky earthquake. The model consists of a single plane with a dip angle of 30°, a strike of 211°, and depths ranging from 25 to 49 km. Compared to USGS solution, the rupture surface is shifted away from the continent and extended along dip, which corresponds better to the aftershock cloud distribution according to the Kamchatka branch of the Federal Research Center «Unified Geophysical Service of RAS». The rupture exhibited nearly pure thrust, with a maximum displacement of 0.88 m and an average displacement of 0.79 m, corresponding to a seismic moment of 2.9×1019 N·m (MW = 6.9). The obtained model is in good agreement with GPS data. The model allowed for the calculation of theoretical displacement fields on the Earth’s surface in the satellite line-of-sight direction. A qualitative comparison with displacements derived from Sentinel-1A radar images was made.http://www.kscnet.ru/journal/kraesc/article/view/843shipunski earthquakeaugust 17, 2024gnsssar interferometryrupture surface model |
| spellingShingle | А.M. Konvisar E.P. Timoshkina N.N. Titkov V.O. Mikhailov M.S. Volkova V.B. Smirnov D.V. Chebrov The seismic rupture surface model of the august 17, 2024 Shipunski, Kamchatka, earthquake Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле shipunski earthquake august 17, 2024 gnss sar interferometry rupture surface model |
| title | The seismic rupture surface model of the august 17, 2024 Shipunski, Kamchatka, earthquake |
| title_full | The seismic rupture surface model of the august 17, 2024 Shipunski, Kamchatka, earthquake |
| title_fullStr | The seismic rupture surface model of the august 17, 2024 Shipunski, Kamchatka, earthquake |
| title_full_unstemmed | The seismic rupture surface model of the august 17, 2024 Shipunski, Kamchatka, earthquake |
| title_short | The seismic rupture surface model of the august 17, 2024 Shipunski, Kamchatka, earthquake |
| title_sort | seismic rupture surface model of the august 17 2024 shipunski kamchatka earthquake |
| topic | shipunski earthquake august 17, 2024 gnss sar interferometry rupture surface model |
| url | http://www.kscnet.ru/journal/kraesc/article/view/843 |
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