Počet záznamů: 1  

High-resolution fault image from accurate locations and focal mechanisms of the 2008 swarm earthquakes in West Bohemia, Czech Republic

  1. 1.
    0394895 - GFÚ 2014 RIV NL eng J - Článek v odborném periodiku
    Vavryčuk, Václav - Bouchaala, Fateh - Fischer, Tomáš
    High-resolution fault image from accurate locations and focal mechanisms of the 2008 swarm earthquakes in West Bohemia, Czech Republic.
    Tectonophysics. Roč. 590, April (2013), s. 189-195. ISSN 0040-1951. E-ISSN 1879-3266
    Grant CEP: GA ČR(CZ) GAP210/12/1491; GA MŠMT LM2010008
    GRANT EU: European Commission(XE) 230669 - AIM
    Institucionální podpora: RVO:67985530
    Klíčová slova: earthquake location * failure criterion * fault friction * focal mechanism * tectonic stress
    Kód oboru RIV: DC - Seismologie, vulkanologie a struktura Země
    Impakt faktor: 2.866, rok: 2013

    We have analyzed 463 micro-earthquakes in the magnitude range from 0.5 to 3.8 that occurred during the 2008 earthquake swarm in West Bohemia, Czech Republic, in order to screen the detailed structure of the focal zone situated at depths between 7 and 11 km. The double-difference location method was applied to records of 22 local seismic stations with an epicentral distance of less than 25 km in order to retrieve highly accurate locations of hypocenters with an accuracy of less than 20 m. The hypocenters are well-clustered and distinctly map the system of activated faults. The fault system has a complex geometry being composed of several fault segments with different orientations. Some of the segments intersect each other. The orientations of the segments coincide well with the focal mechanisms. We have introduced and evaluated the so-called fault instability of the individual fault segments.
    Trvalý link: http://hdl.handle.net/11104/0223053

     
     
Počet záznamů: 1  

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