Effects of 1-D versus 3-D velocity models on moment tensor inversion in the Dobrá Voda area in the Little Carpathians region, Slovakia

0425952 - GFÚ 2015 RIV NL eng J - Journal Article
Jechumtálová, Zuzana - Bulant, P.
Effects of 1-D versus 3-D velocity models on moment tensor inversion in the Dobrá Voda area in the Little Carpathians region, Slovakia.
Journal of Seismology. Roč. 18, č. 3 (2014), s. 511-531. ISSN 1383-4649. E-ISSN 1573-157X
R&D Projects: GA ČR GAP210/10/1728
EU Projects: European Commission(XE) 230669 - AIM
Institutional support: RVO:67985530
Keywords : ray tracing * 1-D and 3-D velocity models * earthquake mechanism * amplitude inversion * Dobrá Voda earthquakes
Subject RIV: DC - Siesmology, Volcanology, Earth Structure
Impact factor: 1.386, year: 2014

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.
Permanent Link: http://hdl.handle.net/11104/0231740