The mechanism of microearthquakes related to a gas storage using differently constrained source models: a case study of the Háje location, Czech Republic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F17%3A00463879" target="_blank" >RIV/67985530:_____/17:00463879 - isvavai.cz</a>

Alternative codes found

RIV/67985891:_____/17:00463879

Result on the web

<a href="http://dx.doi.org/10.1007/s00024-016-1405-x" target="_blank" >http://dx.doi.org/10.1007/s00024-016-1405-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00024-016-1405-x" target="_blank" >10.1007/s00024-016-1405-x</a>

Result language

angličtina

Original language name

The mechanism of microearthquakes related to a gas storage using differently constrained source models: a case study of the Háje location, Czech Republic

Original language description

The resolution of a source mechanism is investigated in terms of three differently constrained source models: the moment tensor, the shear-tensile crack source model, and the double couple source model. The moment tensor (MT) is an unconstrained description of a general dipole source. The shear-tensile crack (STC) represents a slip along a fault with an off-plane component and the double couple (DC) corresponds to a simple shear slip along a fault. The inversion of body wave amplitudes is applied on microseismic events located in the vicinity of underground gas storage Haje (Czech Republic) where volume changes in the source can be expected. The orientation of the simple shear fracture component is resolved almost always well, independently of the source model used. On the other hand, the non-shear components differ largely among the source models considered, from both the model definition and robustness of the inversion. A comparison of the inversion results for the three alternative source models permits an assessment of the reliability of the non-shear components retrieved. Application of the STC model to all events appears to be the most appropriate. The analysis confirms a shear slip for three events and a tensile fracturing for other three events.

Czech name

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Czech description

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Type

J_imp - 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

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Pure and Applied Geophysics

ISSN

0033-4553

e-ISSN

—

Volume of the periodical

174

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

177-195

UT code for WoS article

000391362100009

EID of the result in the Scopus database

2-s2.0-85007521219