July 30, 2025
The tsunami threat to Kamchatka following a recent earthquake has now dissipated. According to Petr Shebalin, director of the Institute of Earthquake Prediction Theory and Mathematical Geophysics of the Russian Academy of Sciences, the city of Petropavlovsk-Kamchatsky was spared from significant impact thanks to the natural protective geography of Avacha Bay, which effectively weakened the incoming wave.
“The tsunami threat stemming from the earthquake itself has passed,” Shebalin explained. “My assessment is that a powerful tsunami did not strike Petropavlovsk-Kamchatsky because the seismic event originated not inside Avacha Bay, but rather within the wider gulf, or even beyond its confines. The constricted entrance to the bay significantly diminished the wave`s energy, which is why the tsunami appears to have been more severe in Severo-Kurilsk.”
Prior to this, authorities in the Sakhalin Region had announced the declaration of a state of emergency in the Severo-Kurilsk District, following the earthquake and the subsequent tsunami.
Rupert Blackwood 
Clement Ashworth