Abstract
The earthquake activity in the area of Greece for the years 1966, 1967, 1968 and 1969 is investigated. This earthquake activity as a rule follows the general pattern found by the use of data for a much longer period. There is a clear tendency for the focal depth of the earthquakes to increase from the convex side of the Aegean arc to the inner volcanic arc. The value of the constant b of the recurrence curves is much smaller for the intermediate earthquakes than for the shallow ones.
Highlights
T h e area of Greece is an active part of the Alpide-HimalayanMelanesian belt
With the data from these stations and the central station in Athens it is possible to determine with good accuracy the epicenters of all the shocks with magnitude M > 4.4 which occurred in the area bounded by the 34° N and 42° N parallels and by the 19° E and 29° E meridians
I t is observed that the main seismic belt of the shallow earthquakes parallels the Alpine folding and lies on the seaward slope of the folding, that is, in the convex side of the Aegean island arc
Summary
T h e area of Greece is an active part of the Alpide-HimalayanMelanesian belt. T h e seismic activity of the area is considerable, too. Investigation of the seismicity of the area was started in the end of the nineteenth century (4). Those studies, were based on inliomogeneous macroseismic data. Systematic collection of microseismic data lias been made, too. The purpose of the present work is to investigate the seismic activity in the area of Greece between 1966 and 1969 and compare this short term activity with the results published previously by other authors
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