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Anica Otilia Placinta, National Institute for Earth Physics (Romania)
Florin Radulescu, National Institute for Earth Physics (Romania)
Zina Malita, National Institute for Earth Physics (Romania)
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The work presents the peculiarities of the crustal and subcrustal earthquakes occured in the Alpine-Carpathian area, from this south-eastern part of Europe. Only in the Vrancea region has been recorded about 200 subcrustal shocks with magnitudes of 4.0-5.9. In this time interval, two strong Vrancea events, on August 30, 1986 (Mw=7.1) and May 30, 1990 (Mw=6.9) was produced.
Concerning crustal activity, the authors show principal features of the seismic events occurred in different tectonic units of Romanian territory as the seismic sequences from Pannonian Depression (Banat region) and western branch of the Southern Carpathians (Herculane Spa and Moldova Noua areas) both from 1991; the Sinaia sequence of the Eastren Carpathians; the seismic activity from the Carpathian Foreland (Ramnicu Sarat-Focsani area) and eastern part of the Moesian Platform (the Intra-Moesian Fault zone). The distribution in time, space, depth and magnitudes and the parameters of the focal mechanism of the seismic events are discussed in connection with the major geotectonic elements of these active zones. Finally, some general geodynamic considerations in the European context are presented.
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