%0 Journal Article %T Using Open GNSS Stations to Determine Earth Surface Displacements and Ionospheric Response Following the Kamchatka Earthquake of July 29, 2025 %A Zagretdinov, R.V. %A Bakhtiarov, V.F. %A Kalinnikov, V.V. %A Kogogin, D.A. %A Maksimov, D.S. %A Nasyrov, I.A. %A Zagretdinov, A.A. %K Aftershock displacements, surface movements, Precise Point Positioning (PPP), InnoGNSS, Total Electron Content (TEC), Kamchatka megathrust earthquake %J Russian Journal of Earth Sciences %D 2026 %N 26 %P 0 %I Geophysical Center of the Russian Academy of Sciences