The Pacific Tsunami Warning Centre has issued a warning for Russia's Kamchatka Peninsula after two quakes — the larger with a magnitude of 7.4 — struck in the sea nearby on Sunday. The larger quake was at a depth of 20 kilometers and was 144 kilometers east of the city of Petropavlovsk-Kamchatsky, which has a population of 180,000.

Completion of mass production of the Poseidon nuclear torpedo marks a shift in strategic deterrence and maritime warfare doctrine. Developed under Russia’s 2018 “Invincible Weapons” initiative, Poseidon combines a compact nuclear reactor for years-long autonomous operation,

The earthquake struck at 12.37pm local time off the Aleutian Islands, prompting a tsunami warning. (Credit: Jodie Stevens/TMX)