Record details

Title
    Resolution of non-double-couple mechanisms: simulation of hypocenter mislocation and velocity structure mismodeling
Author
    Šílený, Jan
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Bulletin of the Seismological Society of America
Vol./nr.
    Roč. 99, č. 4
Pages
    s. 2265-2272
Year
    2009
Notes
    Projekt: GA205/09/0724, GA ČR3cav_un_auth*0252832
    Projekt: IAA300120502, GA AV ČR3cav_un_auth*0000907
    Projekt: MTKI-CT-2004-517242, EU, XE3cav_un_auth*0250446
    Rozsah: 8 s.
    Výzkumný záměr: CEZ:AV0Z30120515
Subject category
    earthquake mechanisms
    induced seismic events
    non-double-couple mechanisms
Keyword
    Hypocenter
    Mechanisms
    Mislocation
    Mismodeling
    Non-double-couple
    Resolution
    Simulation
    Structure
    Velocity
Abstract (in english)
   Mechanisms of earthquakes and induced seismic events are frequently found using the moment tensor description rather than the traditional double couple (DC), as it allows for nonshear source phenomena. However, non-DC source components are sensitive to event mislocations and inexact velocity models of the crust. Inaccuracies such as these can generate spurious non-DC components in the mechanism, which should be taken into account during the interpretation. We perform a synthetic case study simulating seismic observations at Soultz-sous-For?ts, Alsace, hot dry rock (HDR) site. Synthetic P and S amplitudes for several shear-tensile source models are inverted, assuming hypocenter mislocation and velocity structure mismodeling in several types of station coverage.
Contributor
    AV ČR Brno, Geofyzikální ústav
Contributor code
    AV ČR, GFÚ
Source format
    U
Import date
    9. 12. 2013