Non-double-couple moment tensors of earthquakes calculated using empirical Green’s functions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F20%3A00509009" target="_blank" >RIV/67985530:_____/20:00509009 - isvavai.cz</a>
Result on the web
<a href="https://pubs.geoscienceworld.org/ssa/srl/article/91/1/390/575204/Non-Double-Couple-Moment-Tensors-of-Earthquakes" target="_blank" >https://pubs.geoscienceworld.org/ssa/srl/article/91/1/390/575204/Non-Double-Couple-Moment-Tensors-of-Earthquakes</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1785/0220190154" target="_blank" >10.1785/0220190154</a>
Alternative languages
Result language
angličtina
Original language name
Non-double-couple moment tensors of earthquakes calculated using empirical Green’s functions
Original language description
We present a joint inversion for empirical Green's functions (EGFs) and high-resolution non-double-couple (non-DC) moment tensors. First, the EGFs are constructed using known moment tensors of earthquakes occurring in a small focal zone. Second, the estimated EGFs are applied to refine the original moment tensors used for constructing the EGFs. Because the EGFs describe the velocity model better than the standard GFs, the refined moment tensors are more accurate. The method is applied to real observations of earthquakes of the 2008 swarm in West Bohemia, Czech Republic, where tiny details in fracturing in the focal zone are revealed. Refined moment tensors indicate fault closing caused by compaction of fault gouge during fracturing process related to fault weakening by fluids in the focal zone. The application of the proposed inversion can improve moment tensors reported in existing local, regional, or global catalogs for areas with a concentrated seismicity.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10507 - Volcanology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Seismological Research Letters
ISSN
0895-0695
e-ISSN
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Volume of the periodical
91
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
390-398
UT code for WoS article
000504758600030
EID of the result in the Scopus database
2-s2.0-85077127325