Induced Microseismic Event with Strong Rupture Directivity and Superimposed Attenuation Effects
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F23%3A00572249" target="_blank" >RIV/67985891:_____/23:00572249 - isvavai.cz</a>
Alternative codes found
RIV/67985530:_____/23:00572249 RIV/00216208:11320/23:10473653
Result on the web
<a href="https://doi.org/10.1785/0220220229" target="_blank" >https://doi.org/10.1785/0220220229</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1785/0220220229" target="_blank" >10.1785/0220220229</a>
Alternative languages
Result language
angličtina
Original language name
Induced Microseismic Event with Strong Rupture Directivity and Superimposed Attenuation Effects
Original language description
Rupture directivity is a fundamental effect well known mainly for large natural earthquakes. Its observation for microseismic events is difficult due to small rupture size and short duration, usually insufficient coverage of monitoring array and attenuation along wave propagation paths. Here, we detect the rupture directivity for an induced microseismic event (Mw ∼ 1:2) recorded by a dense surface starlike array during hydraulic fracturing of a shale reservoir in China. We use durations of initial P-wave arrivals as a proxy to peak frequency content. The observed directional and offset dependence of the peak frequencies can be explained by superimposed effects of the rupture directivity of fast, possibly supershear rupture propagation and attenuation, permitting the determination of the event’s fault plane orientation. Furthermore, we implement a simple statistical correction to the amplitudes, proving the inverted source mechanism to be stable, only with a slightly lower, yet unreliable nonshear component.
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
—
OECD FORD branch
10507 - Volcanology
Result continuities
Project
<a href="/en/project/GA20-06887S" target="_blank" >GA20-06887S: Seismic waves in heterogeneous anisotropic viscoelastic media</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
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
1938-2057
Volume of the periodical
94
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
1455-1466
UT code for WoS article
000990564400006
EID of the result in the Scopus database
2-s2.0-85159207544