The 2011 West Bohemia (Central Europe) earthquake swarm compared with the previous swarms of 2000 and 2008

0447189 - GFÚ 2016 RIV NL eng J - Článek v odborném periodiku
Čermáková, Hana - Horálek, Josef
The 2011 West Bohemia (Central Europe) earthquake swarm compared with the previous swarms of 2000 and 2008.
Journal of Seismology. Roč. 19, č. 4 (2015), s. 899-913. ISSN 1383-4649. E-ISSN 1573-157X
Grant CEP: GA ČR GAP210/12/2336; GA MŠMT LM2010008
Institucionální podpora: RVO:67985530
Klíčová slova: West Bohemia/Vogtland * local seismicity * earthquake swarm
Kód oboru RIV: DC - Seismologie, vulkanologie a struktura Země
Impakt faktor: 1.550, rok: 2015

This paper presents the basic characteristics of the 2011 West Bohemia/Vogtland earthquake swarm and compares it with the swarms in 2000 and 2008. All these swarms occurred in the NovA1/2 Kostel focal zone. Up to 25,000 M (L) a parts per thousand currency sign3.7 events with depths between 6 and 10 km were detected in the 2011 swarm. Utilizing WEBNET data, we analysed the cumulative seismic moment, magnitude-frequency and interevent time distributions, space-time distribution of foci and typical focal mechanisms. For this purpose, we improved the formula for estimating the local magnitude M (L) used by WEBNET. The 2011 swarm exhibited much higher rapidity than the swarms of 2000 and 2008. The magnitude-frequency distributions of all the three swarms are similar, having the b-value close to 1.0. However, the events of higher magnitudes, roughly M (L) similar to 3.0+, depart markedly from the general trend of the weaker events.
Trvalý link: http://hdl.handle.net/11104/0249104