Directly below the Kluchevskoy vacano, we observed a shallow body of hight Vp/Vs, which probably represents the activated magma chamber just beneath the volcano cone, which erupted in the beginning f 2005. The existence of three levels of magma storage, based on results of local earthquake tomography, may explain the variety of the lava composition and eruption regimes in different volcanoes of the Kluchevskoy group