Seismicity of Croatia in the period 1990-1992

Abstract

Based on the catalogue of all located earthquakes in Croatia and the surrounding areas for the period 1990 – 1992 and on the macroseismic data analyses for individual earthquakes, certain seismicity features have been analysed. All together, 1188 earthquakes were located and the catalogue was found to be complete for the magnitudes M_L ≥ 3.0. Seismically the most active was the coastal part of Croatia, where the strongest earthquake in the analysed period occurred on November 27, 1990 with the epicentre beneath the Dinara Mt. The composite fault-plane solution for the main shocks indicate the presence of a tectonic stress-filed directly approximately SSW-NNE which is compatible with the assumed anticlockwise rotation of the Adriatic plate and its subduction under the Dinarides.