SEISMICITY DEPTH PATTERN, SEISMIC ENERGY AND B-VALUE DEPTH VARIATION IN THE HELLENIC WADATI-BENIOFF ZONE

The statistics of the vertical distribution of the foci of earthquakes which occurred in the Hellenic Wadati-Benioff zone during the period 1964-1982 show that the seismicity pattern, energy and b value of the frequency-magnitude relation vary with depth in a specific manner. The seismicity patterns of the western and the eastern flanks of the Hellenic subduction zone vary with depth in a similar manner, whereas the seismic energies and b value depth variations for these two flanks of the subduction zone do not show such a similarity.