Largest active volcano in the northern hemisphere began erupting on Wednesday afternoon following the huge earthquake in Russia's far east.

A volcano in eastern Russia erupted for the first time in 475 years, prompting a tsunami warning. The Krasheninnikov volcano in Kamchatka became active days after one of the strongest earthquakes ever recorded hit the region.

The volcano has been assigned an "orange" aviation hazard code, the ministry added, meaning flights in the area may be disrupted.