Иркутск, Россия
Иркутск, Россия
Россия
Иркутск, Россия
Новосибирск, Россия
Россия
Иркутск, Россия
Иркутск, Россия
Россия
УДК 551.510.413.5 Ионосфера
УДК 504.35 Ветер. Турбулентность
УДК 550.348.436 Землетрясения, моретрясения
УДК 55 Геология. Геологические и геофизические науки
УДК 550.34 Сейсмология
УДК 550.383 Главное магнитное поле Земли
ГРНТИ 37.01 Общие вопросы геофизики
ГРНТИ 37.15 Геомагнетизм и высокие слои атмосферы
ГРНТИ 37.25 Океанология
ГРНТИ 37.31 Физика Земли
ГРНТИ 38.01 Общие вопросы геологии
ГРНТИ 36.00 ГЕОДЕЗИЯ. КАРТОГРАФИЯ
ГРНТИ 37.00 ГЕОФИЗИКА
ГРНТИ 38.00 ГЕОЛОГИЯ
ГРНТИ 39.00 ГЕОГРАФИЯ
ГРНТИ 52.00 ГОРНОЕ ДЕЛО
ОКСО 05.00.00 Науки о Земле
ББК 26 Науки о Земле
ТБК 63 Науки о Земле. Экология
BISAC SCI SCIENCE
The July 29, 2025 earthquake near the eastern coast of the Kamchatka Peninsula induced a high-amplitude seismic wave that propagated thousands of kilometers from the epicenter. Ground vibrations caused variations in surface air pressure with periods in the infrasonic range, which propagated almost vertically into the upper atmosphere and modulated the ionospheric plasma. The resulting ionospheric disturbances were, in turn, recorded by a number of radiophysical facilities monitoring the ionosphere. In this paper, we provide an overview of the effects caused by the passage of the seismic wave, which were observed during ionospheric monitoring using vertical, oblique, and sky-wave backscatter sounding techniques in the Asian part of Russia.
Lithosphere-atmosphere-ionosphere coupling, ionosphere monitoring, vertical sounding, oblique sounding, sky-wave backscatter sounding, HF radar, infrasound, Kamchatka megathrust earthquake
1. Afraimovich E. L., Perevalova N. P., Plotnikov A. V., et al. The shock-acoustic waves generated by earthquakes // Annales Geophysicae. — 2001. — Vol. 19, no. 4. — P. 395–409. — https://doi.org/10.5194/angeo-19-395-2001
2. Artru J., Farges T. and Lognonné P. Acoustic waves generated from seismic surface waves: propagation properties determined from Doppler sounding observations and normal-mode modeling // Geophysical Journal International. — 2004. — Vol. 158, no. 3. — P. 1067–1077. — https://doi.org/10.1111/j.1365-246x.2004.02377.x
3. Berngardt O. I., Kurkin V. I., Kushnarev D. S., et al. ISTP SB RAS decameter radars // Solar-Terrestrial Physics. — 2020. — Vol. 6, no. 2. — P. 63–73. — https://doi.org/10.12737/stp-62202006
4. Cedrik M. V., Oinats A. V., Podlesnyi A. V., et al. Modeling of the ionosphere response to the passage of the Rayleigh wave caused by the earthquake in Taiwan on April 2, 2024 // Radio Propagation: Proceedings of the XXIX All-Russian Open Scientific Conference. — Kazan : Kazan University Press, 2025. — P. 80–83. — https://doi.org/10.26907/rwp29.2025.80-83 — (In Russian).
5. Chum J., Hruska F., Zednik J., et al. Ionospheric disturbances (infrasound waves) over the Czech Republic excited by the 2011 Tohoku earthquake // Journal of Geophysical Research: Space Physics. — 2012. — Vol. 117, A8. — https://doi.org/10.1029/2012ja017767
6. Chum J., Liu J. Y., Laštovička J., et al. Ionospheric signatures of the April 25, 2015 Nepal earthquake and the relative role of compression and advection for Doppler sounding of infrasound in the ionosphere // Earth, Planets and Space. — 2016. — Vol. 68, no. 1. — https://doi.org/10.1186/s40623-016-0401-9
7. Davis K. and Baker D. M. Ionospheric effects observed around the time of the Alaskan earthquake of March 28, 1964 // Journal of Geophysical Research. — 1965. — Vol. 70, no. 9. — P. 2251–2253. — https://doi.org/10.1029/jz070i009p02251
8. Leonard R. S. and Jr. R. A. Barnes. Observation of ionospheric disturbances following the Alaska earthquake // Journal of Geophysical Research. — 1965. — Vol. 70, no. 5. — P. 1250–1253. — https://doi.org/10.1029/jz070i005p01250
9. Lighthill M. J. Waves in fluids. — Cambridge, UK : Cambridge University Press, 2001.
10. Liu J. Y., Chen C. H., Sun Y. Y., et al. The vertical propagation of disturbances triggered by seismic waves of the 11 March 2011 M9.0 Tohoku earthquake over Taiwan // Geophysical Research Letters. — 2016. — Vol. 43, no. 4. — P. 1759–1765. — https://doi.org/10.1002/2015gl067487
11. Maruyama T. and Shinagawa H. Infrasonic sounds excited by seismic waves of the 2011 Tohoku-oki earthquake as visualized in ionograms // Journal of Geophysical Research: Space Physics. — 2014. — Vol. 119, no. 5. — P. 4094– 4108. — https://doi.org/10.1002/2013ja019707
12. Maruyama T., Tsugawa T., Kato H., et al. Rayleigh wave signature in ionograms induced by strong earthquakes // Journal of Geophysical Research: Space Physics. — 2012. — Vol. 117, A8. — https://doi.org/10.1029/2012JA017952
13. Nishitani N., Ogawa T., Otsuka Y., et al. Propagation of large amplitude ionospheric disturbances with velocity dispersion observed by the SuperDARN Hokkaido radar after the 2011 off the Pacific coast of Tohoku Earthquake // Earth, Planets and Space. — 2011. — Vol. 63, no. 7. — P. 891–896. — https://doi.org/10.5047/eps.2011.07.003
14. Ogawa T., Nishitani N., Tsugawa T., et al. Giant ionospheric disturbances observed with the SuperDARN Hokkaido HF radar and GPS network after the 2011 Tohoku earthquake // Earth, Planets and Space. — 2012. — Vol. 64, no. 12. — P. 1295–1307. — https://doi.org/10.5047/eps.2012.08.001
15. Podlesnyi A. V., Brynko I. G., Kurkin V. I., et al. Multifunctional LFM ionosonde to the ionosphere monitoring // Heliogeophysical Research. — 2013. — Vol. 4. — P. 24–31. — (In Russian).
16. Pokhotelov O. A., Parrot M., Fedorov E. N., et al. Response of the ionosphere to natural and man-made acoustic sources // Annales Geophysicae. — 1995. — Vol. 13, no. 11. — P. 1197–1210. — https://doi.org/10.1007/s00585-995-1197-2
17. Ponomarchuk S. N., Grozov V. P. and Kotovich G. V. Technique of ionospheric parameters automatic determination from data of vertical sounding with a continuous chirp signal. — 2023. — https://doi.org/10.1117/12.2688438
18. Rolland L. M., Lognonné P., Astafyeva E., et al. The resonant response of the ionosphere imaged after the 2011 off the Pacific coast of Tohoku Earthquake // Earth, Planets and Space. — 2011. — Vol. 63, no. 7. — P. 853–857. — https://doi.org/10.5047/eps.2011.06.020
19. Sorokin A. G., Dobrynin V. A., Oynats A. V., et al. On the effect of the Rayleigh seismic wave in the atmosphere from the earthquake in Taiwan on April 3, 2024 // Collection of Proceedings of the XXXVII session of the Russian Acoustic Society. — Moscow : GEOS, 2025. — P. 84–90. — https://doi.org/10.34756/GEOS.2025.17.39225 — (In Russian).
20. Tsugawa T., Saito A., Otsuka Y., et al. Ionospheric disturbances detected by GPS total electron content observation after the 2011 off the Pacific coast of Tohoku Earthquake // Earth, Planets and Space. — 2011. — Vol. 63, no. 7. — P. 875–879. — https://doi.org/10.5047/eps.2011.06.035
21. Yusupov K. M., Mathews J. D., Maruyama T., et al. Amplitude variations of the reflected signal during vertical sounding of the ionosphere at middle latitudes // Solar-Terrestrial Physics. — 2020. — Vol. 6, no. 3. — P. 72–80. — https://doi.org/10.12737/stp-63202010
