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,

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

A magnitude 6.6 earthquake struck near the coast of the Kamchatka region in the far east of Russia on Sunday, the German Research Centre for Geosciences (GFZ) said.The quake was at a depth of 10 km (6.