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Moment tensor catalogue of earthquakes in West Bohemia from 2008 to 2018
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SYSNO ASEP 0557437 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Moment tensor catalogue of earthquakes in West Bohemia from 2008 to 2018 Author(s) Vavryčuk, Václav (GFU-E) ORCID, RID
Adamová, Petra (GFU-E) ORCID, RID
Doubravová, Jana (GFU-E) ORCID, RID
Horálek, Josef (GFU-E) ORCID, RIDSource Title Earth System Science Data. - : Copernicus - ISSN 1866-3508
Roč. 14, č. 5 (2022), s. 2179-2194Number of pages 16 s. Publication form Print - P Language eng - English Country DE - Germany Keywords West Bohemia ; earthqukes ; swarms Subject RIV DC - Siesmology, Volcanology, Earth Structure OECD category Volcanology R&D Projects GA19-06422S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support GFU-E - RVO:67985530 UT WOS 000791268400001 EID SCOPUS 85129880219 DOI 10.5194/essd-14-2179-2022 Annotation We present a unique catalogue of full moment tensors (MTs) of earthquakes with ML between 0.5 and 4.4 that occurred inWest Bohemia, Czech Republic, in the period from 2008 to 2018 (Vavry.cuk et al., 2022a, b). The MTs were calculated from vertical components of P-wave amplitudes. The MT inversion was based on principal component analysis applied to optimally filtered velocity records of local seismic stations deployed in the West Bohemia area. The minimum number of inverted stations is 15, and the rms between theoretical and observed amplitudes is lower than 0.5. The catalogue is exceptional in several aspects: (1) it represents an extraordinary, extensive dataset of more than 5100 MTs, (2) it covers a long period of seismicity in the studied area, during which several prominent earthquake swarms took place, (3) the locations and retrieved MTs of earthquakes are of a high accuracy. Additionally, we provide three-component records at the West Bohemia (WEBNET) seismic stations, the velocity model in the region, and the technical specification of the stations. The dataset is ideal for being utilized by a large community of researchers for various seismological purposes, e.g. for studies of (1) the migration of foci and the spatiotemporal evolution of seismicity, (2) redistribution of stress during periods of intense seismicity, (3) the interaction of faults, (4) the Coulomb stress along the faults and local stress anomalies connected to fault irregularities, (5) diffusivity of fluids along the activated faults, or (6) the time-dependent seismic risk due to the migration of seismicity in the region. In addition, the dataset is optimum for developing and testing new inversions for MTs and for tectonic stress. Since most of the earthquakes are non-shear, the dataset can contribute to studies of non-double-couple components of MTs and their relation to shear-tensile fracturing and/or seismic anisotropy in the focal zone. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2023 Electronic address https://essd.copernicus.org/articles/14/2179/2022/
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