A powerful 8.8 magnitude earthquake struck off the coast of Russia, injuring several people and causing tsunami waves up to 15 meters high. The epicenter was near Petropavlovsk-Kamchatsky, prompting warnings of aftershocks and potential further tsunamis. A state of emergency was declared in the Kuril Islands due to flooding and downed electricity, while the Klyuchevskoy volcano began erupting post-earthquake.