Both incidents could be connected to the huge earthquake that rocked Russia's Far East last week, that triggered tsunami warnings as far away as French Polynesia and Chile, and was followed by an eruption of Klyuchevskoy, the most active volcano on the Kamchatka Peninsula.

Less than a week after a massive 8.8-magnitude earthquake sparked tsunami warnings throughout the Pacific Ocean, a volcano in far eastern Russia, on Sunday, spewed hot ash miles into the sky,