Dhaka, Aug. 4 -- A volcano erupted for the first time in 450 years in Russia's eastern Kamchatka region, the nation's emergency authority said Sunday, days after one of the strongest earthquakes on record hit the region.The plume is estimated to have reached an altitude of 6,000 metres (19,700 feet), Kamchatka's Ministry of Emergency Situations said in a post on Telegram."The plume is spreading eastward from the volcano toward the Pacific Ocean. There are no populated areas along its path, and no ashfall has been recorded in inhabited localities," the ministry said.The volcano has been assigned an "orange" aviation hazard code, the ministry added, meaning flights in the area may be disrupted.It came after Klyuchevskoy, another volcano in th...