Five powerful quakes, including one with a magnitude of 7.4, struck in the sea off Russia's Kamchatka Peninsula.

A powerful series of undersea quakes, including a 7.4 magnitude tremor, struck off Russia’s Kamchatka Peninsula on Sunday, triggering tsunami warnings.

After powerful earth tremors in the Pacific Ocean, residents of several settlements in Kamchatka had been advised to climb to elevations 30-40 metres high or move at least 2-3 kilometres away from the coast because of the tsunami threat,