Small-aperture-array translational and rotational seismograms from distant sources - An example of the Jan Mayen Mw 6.8 of 30 August 2012 earthquake
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F16%3A00467005" target="_blank" >RIV/67985891:_____/16:00467005 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/16:10330170
Result on the web
<a href="http://dx.doi.org/10.1016/j.pepi.2016.03.013" target="_blank" >http://dx.doi.org/10.1016/j.pepi.2016.03.013</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.pepi.2016.03.013" target="_blank" >10.1016/j.pepi.2016.03.013</a>
Alternative languages
Result language
angličtina
Original language name
Small-aperture-array translational and rotational seismograms from distant sources - An example of the Jan Mayen Mw 6.8 of 30 August 2012 earthquake
Original language description
We present the seismic rotation rate due to the earthquake of Mw 6.7 at the Jan Mayen island, obtained from broad-band seismograms at a distance of about 2740 km. The order of magnitude of the rotation rate amplitude is only 10-9 rad/s in this case. It is studied with a focus on rotation-to-translation relations. A joint analysis of the rotational and translational data allowed us to determine the true backazimuth and phase velocity of S- and Rayleigh waves. For the surface waves, we studied the frequency dependence of both the backazimuth and phase velocity (wave dispersion). The results are independently confirmed by a method based on time delays between translational records within a small-aperture array. Both methods revealed an unusual velocity drop in the dispersion curve between the periods of 18 and 22 s. This feature may be an indication of a low-velocity zone in the lower crust.
Czech name
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Czech description
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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
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Result continuities
Project
<a href="/en/project/GA15-02363S" target="_blank" >GA15-02363S: Gradiometry in seismic monitoring</a><br>
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
Physics of the Earth and Planetary Interiors
ISSN
0031-9201
e-ISSN
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Volume of the periodical
256
Issue of the periodical within the volume
JUL
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
12
Pages from-to
1-12
UT code for WoS article
000378442800001
EID of the result in the Scopus database
2-s2.0-84965181969