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Analysis of Rayleigh-Wave Particle Motion from Active Seismics

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F17%3A00507353" target="_blank" >RIV/67985891:_____/17:00507353 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.crossref.org/iPage?doi=10.1785%2F0120160063" target="_blank" >https://www.crossref.org/iPage?doi=10.1785%2F0120160063</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1785/0120160063" target="_blank" >10.1785/0120160063</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Analysis of Rayleigh-Wave Particle Motion from Active Seismics

  • Original language description

    Back-azimuth analysis is a classical method used in seismological studies for the determination of the direction (azimuth) of an otherwise-unknown seismic source. This is accomplished through the analysis of three-component (3C) data according to a procedure based on the evaluation of Rayleigh-wave polarity and is typically accomplished by assuming a retrograde motion. The same principles are here considered in the framework of the analyses performed while considering active data collected by a 3C geophone, thus enabling us to easily and unambiguously compute the Rayleigh-wave particle motion (RPM) frequency curve that describes the motion of Rayleigh waves as a function of the frequency. The analyses performed for three test sites characterized by different stratigraphic conditions show that, contrary to the common assumption, in the considered frequency range (about 2-40 Hz), prograde motion is actually quite common. Although for two of the three presented case studies we consider a single-offset acquisition, in order to evaluate the variations of the RPM frequency curve as a function of the offset, we also considered two multi-offset datasets (one synthetic and one from a field acquisition). Results seem to indicate that, although some dependency on the offset necessarily exists, the overall trend is a characteristic of the site. Potential applications of the described approach are discussed in particular with respect to seismic-hazard studies, as well as in the light of the exploitation of the RPM frequency curve for better constraining the subsurface model.

  • Czech name

  • Czech description

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

    10505 - Geology

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2017

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Bulletin of the Seismological Society of America

  • ISSN

    0037-1106

  • e-ISSN

  • Volume of the periodical

    107

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    12

  • Pages from-to

    51-62

  • UT code for WoS article

    000394004900005

  • EID of the result in the Scopus database

    2-s2.0-85012012719