сотрудник с 01.01.2023 по 01.01.2026
Россия
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
Following the MW 8.8 Kamchatka earthquake on 29 July 2025, we observed coseismic Multiple Cusp Signatures (MCS) in successive 1-min ionograms recorded by the VIPIR ionosonde near Koror, Palau (PL407). We attribute these signatures to plasma displacements driven by three seismogenic infrasonic waves generated by teleseismic SKiKP phases. Doppler measurements reveal downward plasma displacements associated with each infrasonic wave. We further propose that the Palau barrier reef lagoon may serve as an efficient infrasonic wave generator, enabling MCS formation despite strong seismic attenuation over the ~4350 km epicentral distance.
High altitude acoustic wave, coseismic ionospheric disturbance, SKiKP, ScS, Multiple Cusp Signature, VIPIR ionosonde, 2025 Kamchatka megathrust earthquake
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