Podhale, Poland, earthquake of November 30, 2004

Czasopismo : Acta Geophysica
Tytuł artykułu : Podhale, Poland, earthquake of November 30, 2004

Autorzy :
Sobotka, J.
University of Wrocław, Institute of Geological Sciences, Department of Structural Geology, Wrocław, Poland, jerzysob@ing.uni.wroc.pl,
Sedighi, M.
K.N. Toosi University of Technology, Faculty of Geodesy and Geomatics Engineering, Tehran, Iran, sedighi@ncc.org.ir,
Rezaei, K.
LMU University, Munich, Germany, khalil.rezaei@yahoo.com,
Narayan, J.
Dept. of Earthquake Engineering, Indian Institute of Technology, Roorkee, India, jaypnfeq@iitr.ernet.in,
Rozmarynowska, A.
Institute of Geophysics, Polish Academy of Sciences, Warszawa, Poland, rozmaryn@igf.edu.pl,
Gnyp, A.
Carpathian Branch, Subbotin Institute of Geophysics, National Academy of Sciences of Ukraine, Lviv, Ukraine, gnyp@cb-igph.lviv.ua,
Wiejacz, P.
Institute of Geophysics, Polish Academy of Sciences, Warszawa, Poland, pwiejacz@igf.edu.pl,
Abstrakty : Earthquake of November 30, 2004, in Podhale region, southern Poland, was of unexpectedly big size in this area of weak seismicity. As Poland is considered a country of low seismicity, the earthquake has caused concern about seismic hazard in Poland, especially since it took place shortly after the even more unexpected Kaliningrad Region, Russia, earthquakes of September 21, 2004, that inflicted minor damage in northern Poland. The paper presents the findings on the Podhale earthquake which reached macroseismic intensity up to 7 and magnitude 4.7 (mb; ISC). The event was felt up to a distance of about 100 km and inflicted slight damage to buildings in its narrow epicentral area, thus evidencing its relatively shallow depth. The quake has been located near the village of Skrzypne, about 15 km west-southwest of the district capital Nowy Targ. The source mechanism has been found to be of dip slip normal fault type, although a problem remains of association of this mechanism with known tectonic dislocations in the region. The earthquake has been followed by a long series of aftershocks. Their distribution in time is also studied and the biggest aftershocks have been located.

Słowa kluczowe : local seismicity, macroseismic observations, aftershocks,
Wydawnictwo : Instytut Geofizyki PAN
Rocznik : 2009
Numer : Vol. 57, no. 2
Strony : 346 – 366
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Cytuj : Sobotka, J. ,Sedighi, M. ,Rezaei, K. ,Narayan, J. ,Rozmarynowska, A. ,Gnyp, A. ,Wiejacz, P. , Podhale, Poland, earthquake of November 30, 2004. Acta Geophysica Vol. 57, no. 2/2009