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

Tsunami threat is over after three earthquakes, one with a 7.4 magnitude, hit Petropavlovsk-Kamchatsky, the capital of Kamchatka region in Russia.There were also seismic events with magnitudes

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,