Tectonic quakes from the Polish part of the Tatry region detected by broad-band stations operated by Institute of Physics of the Earth (2004–2005)

Geoscience Research Reports 39, 2006 (GRR for 2005), pages 135–137

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Abstract

In the period 2004-2005, the broad-band seismic network of Institute of Physics of the Earth, Masaryk University, Brno (IPE) situated in Moravia registered 25 earthquakes from the Polish part of the Tatry region. This newly detected seismic activity in the Tatry region started by the strongest event (local magnitude ML = 4.6) on November 30, 2004 and continued from the December 2004 at least to August 2005. In the Polish part of the Tatry region, the historical macroseismic observations are known. But during about ten years of continuous registration, the broad-band stations operated by the IPE had not recorded any earthquake from this region before November 30, 2004. Epicentres of detected earthquakes are situated near Zakopane, on the northern margin of the Central Western Carpathians. This region represents the NE prolongation of the seismoactive zone passing from the Mur-Murz fault system in the Eastern Alps through the SE part of the Vienna basin and the Malé Karpaty Mts. into Western Carpathians and continuing along the Pieniny Klippen Belt to NE.