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Sensitivity of stress inversion of focal mechanisms to pore pressure changes

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F16%3A00463543" target="_blank" >RIV/67985530:_____/16:00463543 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1002/2016GL070145" target="_blank" >http://dx.doi.org/10.1002/2016GL070145</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/2016GL070145" target="_blank" >10.1002/2016GL070145</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Sensitivity of stress inversion of focal mechanisms to pore pressure changes

  • Original language description

    We investigate the sensitivity of stress inversion from focal mechanisms to pore pressure changes. Synthetic tests reveal that pore pressure variations can cause apparent changes in the retrieved stress ratio R relating the magnitude of the intermediate principal stress with respect to the maximum and minimum principal stresses. Pore pressure and retrieved R are negatively correlated when R is low (R<0.6). The spurious variations in retrieved R are suppressed when R>0.6. This observation is independent of faulting style, and it may be related to different performance of the fault plane selection criterion and variability in orientation of activated faults under different pore pressures. Our findings from synthetic data are supported by results obtained from induced seismicity at The Geysers geothermal field. Therefore, the retrieved stress ratio variations can be utilized for monitoring pore pressure changes at seismogenic depth in stress domains with overall low R.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    DC - Seismology, volcanology and Earth structure

  • OECD FORD branch

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

    2016

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Geophysical Research Letters

  • ISSN

    0094-8276

  • e-ISSN

  • Volume of the periodical

    43

  • Issue of the periodical within the volume

    16

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    10

  • Pages from-to

    8441-8450

  • UT code for WoS article

    000384443800014

  • EID of the result in the Scopus database

    2-s2.0-84983440063