Local Seismic Events in the Area of Poland Based on Data from the PASSEQ 2006-2008 Experiment

• Autorzy: Polkowski M. , Plesiewicz B. , Wiszniowski J. , Wilde-Piórko M.

Identyfikatory

DOI

10.1515/acgeo-2016-0091

• Języki publikacji: EN

Abstrakty

EN

PASSEQ 2006-2008 (Passive Seismic Experiment in TESZ; WildePiórko et al. 2008) was the biggest passive seismic experiment carried out so far in the area of Central Europe (Poland, Germany, the Czech Republic and Lithuania). 196 seismic stations (including 49 broadband seismometers) worked simultaneously for over two years. During the experiment, multiple types of data recorders and seismometers were used, making the analysis more complex and time consuming. The dataset was unified and repaired to start the detection of local seismic events. Two different approaches for detection were applied for stations located in Poland. The first one used standard STA/LTA triggers (Carl Johnson’s STA/LTA algorithm) and grid search to classify and locate the events. The result was manually verified. The second approach used Real Time Recurrent Network (RTRN) detection (Wiszniowski et al. 2014). Both methods gave similar results, showing four previously unknown seismic events located in the Gulf of Gdańsk area, situated in the southern Baltic Sea. In this paper we discuss both detection methods with their pros and cons (accuracy, efficiency, manual work required, scalability). We also show details of all detected and previously unknown events in the discussed area.

Słowa kluczowe

EN

local seismicity; seismic detection; Poland

PL

lokalna aktywność sejsmiczna; detekcja sejsmiczna; Polska

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2016
• Tom: Vol. 64, no. 6
• Strony: 2092--2113
• Opis fizyczny: Bibliogr. 40 poz.

Twórcy

autor

Polkowski M.

• Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland

autor

Plesiewicz B.

• Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland

autor

Wiszniowski J.

• Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland

autor

Wilde-Piórko M.

• Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)