CLUSTERING PROPERTIES IN TIME AND SPACE FOR VRANCEA (ROMANIA) EARTHQUAKES

EMILIA POPESCU, BOGDAN ENESCU, MIRCEA RADULIAN, OLIVIA BAZACLIU

National Institute for Earth Physics, P.O. Box MG-2, Bucharest, Romania


A growing body of evidence supports the idea of time, space and energy clustering in the seismogenic process, which must reflect specific physical, geodynamic and rheological phenomena acting at different scalelengths. The purpose of this paper is to study the scale invariant clustering in space and time domains for the Vrancea subcrustal earthquakes. At the same time we try to identify the local fractal properties along the Vrancea subducting slab and their correlation with different characteristic segments delimited on the depth.

Key words: Vrancea subducting slab, fractal properties, coefficient variation method, multifractal statistics.