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

A strong earthquake of magnitude 6.3 was recorded off the East Coast of Kamchatka, the National Center for Seismology (NCS), reported on Tuesday. According to NCS, the earthquake occurred at 7:30 AM (Indian Standard Time), at a depth of 50 kilometres.

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