Record details

    Effects of 1-D versus 3-D velocity models on moment tensor inversion in the Dobrá Voda area in the Little Carpathians region, Slovakia
    Bulant, P.
    Jechumtálová, Zuzana
Publication type
    článek v odborném periodiku
Source title - serial
    Journal of Seismology
    Roč. 18, č. 3
    s. 511-531
    doplnit granty
    Projekt: GAP210/10/1728, GA ČR3cav_un_auth*0263509
    Rozsah: 21 s. : P
Subject category
    1-D and 3-D velocity models
    amplitude inversion
    Dobrá Voda earthquakes
    earthquake mechanism
    ray tracing
Abstract (in english)
   Retrieving the parameters of a seismic source from seismograms involves deconvolving the response of the medium from seismic records. Thus, in general, source parameters are determined from both seismograms and the Green functions describing the properties of the medium in which the earthquake focus is buried. The quality of each of these two datasets is equally significant for the successful determination of source characteristics. As a rule, both sets are subject to contamination by effects that decrease the resolution of the source parameters. Seismic records are generally contaminated by noise that appears as a spurious signal unrelated to the source. Since an improper model of the medium is quite often employed, due to poor knowledge of the seismic velocity of the area under study, and since the hypocentre may be mislocated, the Green functions are not without fault.
    AV ČR Brno, Geofyzikální ústav
Contributor code
    AV ČR, GFÚ
Source format
Import date
    23. 10. 2014