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Moho depth retrieval from waveforms of microearthquakes in the West Bohemia/Vogtland seismoactive area
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SYSNO ASEP 0387293 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Moho depth retrieval from waveforms of microearthquakes in the West Bohemia/Vogtland seismoactive area Author(s) Hrubcová, Pavla (GFU-E) ORCID, RID
Vavryčuk, Václav (GFU-E) ORCID, RID
Horálek, Josef (GFU-E) ORCID, RID
Boušková, Alena (GFU-E) ORCID, RIDSource Title 74th EAGE conference & exhibition incorporating SPE EUROPEC 2012. - Houten : EAGE, 2012 - ISBN 978-90-73834-27-9 Pages p256/1-p256/5 Number of pages 5 s. Publication form Medium - C Action EAGE Conference & exhibition incorporationg SPE EUROPEC 2010 /74./ Event date 04.06.2012-07.06.2012 VEvent location Copenhagen Country DK - Denmark Event type EUR Language eng - English Country NL - Netherlands Keywords West Bohemia/Vogtland ; waveform modelling ; Moho depth Subject RIV DC - Siesmology, Volcanology, Earth Structure R&D Projects GAP210/10/2063 GA ČR - Czech Science Foundation (CSF) LM2010008 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support GFU-E - RVO:67985530 Annotation West Bohemia/Vogtland is the area of an increased geodynamic activity manifested by numerous mineral springs and CO2 emissions located at intersection of faults. The seismicity is characterized by reoccurrence of intraplate earthquake swarms with local magnitude mostly less than 4. Knowledge of a detailed crustal structure is essential for all advanced studies of seismicity and focal parameters of the micro-earthquakes. We concentrate on velocity model and Moho depth retrieval using waveforms of local micro-earthquakes that occurred during the 2008 swarm and were observed at the WEBNET seismic network stations. The waveforms typically display dominant direct P and S waves followed by converted and reflected waves secondarily generated at shallow and deep subsurface structure. Apart from velocity structure and source-receiver geometry the waveforms are significantly affected by focal mechanisms of the earthquakes. Therefore, the waveforms are processed separately for clusters of earthquakes with similar mechanism. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2013
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