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
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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
10505 - Geology
Result continuities
Project
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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
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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