Abstract
The method of surface-wave amplitude spectra inversion for the seismic moment tensor (SMT) is implemented and tested in the Pribaikalye region. The SMTs are calculated for 39 events with M w = 4.4–6.3, which occurred in the region in 2000–2011. Based on the obtained data, the seismotectionic deformations of the crust are estimated in two seismically active areas-the Northern Pribaikalye and northeastern Baikal rift zone. It is found that on a level of moderate-magnitude events, the region is dominated by the regimes of subhorizontal northwestern extension and strike-slip faulting, which reflects the long-term trends in the stress field of the crust in these parts of the rift.
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Original Russian Text © A.I. Seredkina, V.I. Melnikova, 2014, published in Fizika Zemli, 2014, No. 3, pp. 103–114.
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Seredkina, A.I., Melnikova, V.I. Seismic moment tensor of Pribaikalye earthquakes from the surface-wave amplitude spectra. Izv., Phys. Solid Earth 50, 403–414 (2014). https://doi.org/10.1134/S1069351314030094
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DOI: https://doi.org/10.1134/S1069351314030094