ESTIMATION OF THE ATTENUATION OF SEISMIC WAVES BY CODA ENVELOPES IN REGIONS WITH DIFFERENT GEODYNAMIC REGIMES ON THE EXAMPLE OF THE TIEN SHAN AND THE BAIKAL RIFT
https://doi.org/10.5800/GT-2022-13-2s-0625
Abstract
Evaluation of seismic wave attenuation parameters (Q-factor and frequency parameter) in the lithosphere of the Tien Shan and the Baikal rift was carried out using coda waves of regional earthquakes. Comparison of obtained quality factor values shows that attenuation in the lithosphere of the Tien Shan is stronger than in the Baikal rift. It can be explained by a higher level of heterogeneity of medium.
Supporting agencies: The work was done under the financial support of the Ministry of Science and Higher Education of the Russian Federation as a part of the state assignments on research topics 075-01471-22, АААА-А21-121011890033-1) with the use of the data obtained at Large-Scale Research Facilities "Seismic and infrasonic monitoring of the Arctic cryolite zone and continuous seismic monitoring of the Russian Federation and adjacent areas", and Large-Scale Research Facilities "South Baikal instrumental complex for monitoring of seismic hazard area geodynamics" which is a part of the Shared Research Facilities "Geodynamics and Geochronology" at the Institute of the Earth’s Crust SB RAS. The facilities of IRIS Data Services, and specifically the IRIS Data Management Center, were used for access to waveforms, related metadata, and derived products used in this study.
About the Authors
P. A. Predein
Geological Institute, Siberian Branch of the Russian Academy of Sciences;
Buryat Branch of the Federal Research Center of the Geophysical Survey, Russian Academy of Sciences
Russian Federation
Russian Federation
6а Sakhyanova St, Ulan-Ude 670047, Republic of Buryatia
Ts. A. Tubanov
Geological Institute, Siberian Branch of the Russian Academy of Sciences;
Buryat Branch of the Federal Research Center of the Geophysical Survey, Russian Academy of Sciences
Russian Federation
Russian Federation
6а Sakhyanova St, Ulan-Ude 670047, Republic of Buryatia
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Review
For citations:
Predein P.A., Tubanov Ts.A. ESTIMATION OF THE ATTENUATION OF SEISMIC WAVES BY CODA ENVELOPES IN REGIONS WITH DIFFERENT GEODYNAMIC REGIMES ON THE EXAMPLE OF THE TIEN SHAN AND THE BAIKAL RIFT. Geodynamics & Tectonophysics. 2022;13(2):0625. (In Russ.) https://doi.org/10.5800/GT-2022-13-2s-0625
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