Record details

    Contribution of local seismic networks to the regional velocity model of the Bohemian Massif
Statement of responsibility
    Bohuslav Růžek, Jan Zedník, Karel Klíma, Libuše Ruprechtová
    Klíma, Karel
    Ruprechtová, Libuše
    Růžek, Bohuslav
    Zedník, Jan
Source title - serial
    Studia geophysica et geodaetica
    Roč. 44, č. 2
    s. 175-187
    6 obr., 3 tab., 2 s.bibl.
    Zkr. název ser.: Stud. geophys. geod. (Praha)
Subject group
    Český masiv
    geologie regionální
    měření seizmické
    model jednorozměrný
    rychlost elastických vln
Geographical name
    Česká republika
Abstract (in english)
   The routine location of regional seismic events using data from the Czech National Seismological Network (CNSN) is based on Pn, Pg, Sn, Sg phases. A simple velocity model derived from Kárník's (1953) interpretation of an earthquake in Northern Hungary in 1951 has hitherto been used. At present, numerous local seismic networks record and local events, which are occasionally recorded at regional distances as well. Due to the relatively small dimensions of local networks, hypocenters (and origin times) determined by a local network might be considered as nearly exact from the point of view of regional scale CNSN. The comparison of common locations as well as to optimize a simple velocity model. The joint interpretation of the CNSN bulletin and the catalogues of four local seismic networks WEBNET, OSTRAVA, KLADNO and LUBIN produced a new 1D velocity model. The most frequent epicentral error in this model is less than 5 km, and most foci lie up to 15 km from the true position.
   The performed analysis indicates bimodal distribution of Sn residuals
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
Entered date
    21. 5. 2007
Import date
    8. 8. 2012