Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 13
Articles | Volume 26, issue 13
https://doi.org/10.5194/acp-26-9559-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-9559-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 13
Research article
 | 
08 Jul 2026
Research article |  | 08 Jul 2026

Co-seismic infrasound in the ionosphere over Central Europe from the M8.8 Kamchatka 2025 earthquake observed by Doppler sounding at record heights

Jaroslav Chum, Zbyšek Mošna, Jiří Baše, Jan Zedník, Carsten Schmidt, Patrick Hannawald, Jan Rusz, Jaroslav Urbář, and Šimon Mackovjak

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Short summary
An analysis of unique observations of long period infrasound waves (~200 s) recorded in the ionosphere over Central Europe at record heights by continuous Doppler sounding is presented. The infrasound was generated by the Long-period surface seismic waves induced by the M8.8 Kamchatka earthquake on July 29, 2025. The time delay of the infrasound detection in the ionosphere relative to the vertical motion of the ground surface is consistent with the numerical simulation of infrasound propagation.
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