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Authors: Tosi, P.*
De Rubeis, V.*
Papadirnitriou, E.*
Dimitriu, P.*
Title: Statistical study of epicentre alignment in the broader Aegean area
Issue Date: Sep-1994
Series/Report no.: 37/5
Keywords: Aegean area
faults interaction
Abstract: Accurate data concerning shallow (h = 60 km) earthquakes (Ms =4.5) that occurred in the broader Aegean area are used to point out the presence of linear seismogenic structures (seismolineaments). The earthquake data were analyzed by the use of a specific algorithm, and the directions of the best alignment of epicentres were found. The algorithm is based on statistical criteria applied within a circular area with the aim of searching for the best direction of alignment; this is then tested, to discriminate whether or not the pattern could stem from a random distribution of epicentres, or whether it is effectively the result of a linear seismic structure; the procedure is repeated to cover the whole area examined. The resulting lineaments can be regarded as individual tectonic units, as they usually coincide with known active faults or fault systems. An interpretation is given of the spatio-temporal evolution of the seismicity along the lineaments in terms of the asperity model.
Appears in Collections:05.01.04. Statistical analysis
04.06.02. Earthquake interactions and probability
Annals of Geophysics
Papers Published / Papers in press

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