Klyuchevskaya Sopka, the highest active volcano in Eurasia, situated on Kamchatka, is emitting ash columns upward to 1 kilometer. Cloud of ash is tailing out over 10 kilometres. Residents of Klyuchi settlement in 30 kilometres from volcano can observe it. The question is, shall we await a repetition of the events tied with Eyjafjallajokull volcano eruption in Iceland, which paralyzed air services in Europe in spring 2010.
      
      Klyuchevskaya Sopka has been active since September, 2009. The local earthquakes and permanent volcanic tremor are fixed at seismological stations near volcano. From time to time volcano erupts ash, which forms columns 100 - 1000 metres. The last one was fixed this Saturday, on the August, 29. Such clouds can make flights of local aviation difficult. The air services are informed regularly.
      
      The problem is that in eruptions like this, volcano increases its activity in the end of eruption, so columns of ash can reach 10 - 12 kilometres and clouds can extend at an immense distance. That can be dangerous for international aviation.
      
      Now there is no danger for the flights in that region, but the specialists say, that exact predictions are impossible. Everything depends on further activity of volcano, power of eruption and wind direction.
      
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