Record details

Title
    Moho depth determination from waveforms of microearthquakes in the West Bohemia/Vogtland swarm area
Author
    Boušková, Alena
    Horálek, Josef
    Hrubcová, Pavla
    Vavryčuk, Václav
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Journal of Geophysical Research: Solid Earth
Vol./nr.
    Roč. 118, č. 1
Pages
    s. 120-137
Year
    2013
Notes
    Projekt: GAP210/10/2063, GA ČR3cav_un_auth*0263306
    Projekt: IAA300120801, GA AV ČR3cav_un_auth*0241180
    Projekt: LM2010008, GA MŠk3cav_un_auth*0273783
    Rozsah: 18 s. : P
Subject category
    Bohemian Massif
    crustal structure
    microseismicity
Keyword
    Area
    Bohemia/Vogtland
    Depth
    Determination
    Microearthquakes
    Moho
    Swarm
    Waveforms
    West
Abstract (in english)
   The West Bohemia/Vogtland area is known for its increased geodynamic activity with reoccurrence of intraplate earthquake swarms. Previous geophysical studies, namely active and passive seismic investigations, revealed a high velocity lower crust in this area with increased reflectivity. To refine this result and retrieve a more detailed structure of the deep crust and the Moho discontinuity, we analyzed waveforms of local microearthquakes that occurred in this area during the 2008 swarm. The waveforms of earthquakes were grouped into clusters with similar focal mechanisms, and the clusters were processed separately. We developed a new multiazimuthal approach in data processing to increase resolution of Moho phases in the waveforms.
Contributor
    AV ČR Brno, Geofyzikální ústav
Contributor code
    AV ČR, GFÚ
Source format
    U
Import date
    23. 10. 2014