The seismotectonic regime in Greece

Galanopoulos A G Galanopoulos A G

doi:10.4401/ag-4987

Abstract

Evidence is presented which favours the theory that theearthquake activity in the area of Greece should bo ascribed to horizontal currents flowing off to the side of the secondary sedimentary arc, from a minor mantle current rising under the primary volcanic arc of the Southeastern section of the Dinaric Alps.

Highlights

Greece, viz. the southeastern section of the Dinaric Alps, known under the name "Hellenides"., consist of four main units, i.e. of the eastern inner zones and the western outer zones
After the Alpine folding and overthrusting of the surface layers, viz. at the end of Miocene started a dislocation of the Eastern Mediterranean which created large fault zones running in two prevailing directions: NNW-SSE
I n the case of intermediate shocks, the motion along the same fault zones seems to be opposite (Hodgson and Wickens (u))

Summary

Introduction

Viz. the southeastern section of the Dinaric Alps, known under the name "Hellenides"., consist of four main units, i.e. of the eastern inner zones (eugeoanticline-eugeosyneline) and the western outer zones (miogeoanticline-miogeosyncline). Seisinological and Geological studies reveal the following features: on the faults along the fracture zone running in WSW-ENE direction, the motion is right-lateral and downthrow is on the North side. I n the interval 1960-1963 the number of earthquake foci which released shocks of magnitude > 4.7 in the area of Greece increased b y 146.

Results

Conclusion