| Abstract: | The seismic energy concentration within the volcanic chain of the Aegean Sea is calculated. The definition of the concentration of earthquake energy is briefly treated mathematically. According to the results, in the lower half of the part of the lithosphere under the respective volcanoes there exist cylinder-like volumes, with a radius of at least 25 km, in which the rigidity of the material is presumably too low for the slow accumulation of mechanical strains. These cylindric aseismic domains are to be found beneath all of the volcanoes considered, and can be regarded as the place of deep volcanic vents (“translithospheric chimneys”), corresponding to the theory of Ninkovich and Hays (1971) as well as that of Gorshkov (1969). As regards the upper half of the lithosphere, the continuation of these translithospheric volcanic vents is there much narrower. |
