Abstract
The waveform cross correlation technique is used to detect signals from aftershocks of the ML = 6.1, August 14, 2016, Sakhalin earthquake using regional seismic network data. Regular P- and S-wave phase arrivals are associated with seismic sources; the resulting cross correlation bulletin is compared with a standard seismic bulletin for the same aftershock sequence. An advantage of the cross correlation bulletin is that it has more detected seismic events tied to three or more stations and a lower catalog completeness threshold; even the epicenters of the weakest aftershocks are located with greater accuracy. The exact aftershock locations tend to cluster along a narrow zone related to the Central Sakhalin Fault.
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The study was supported by the Integrated Program for Basic Scientific Research of the Far East Branch of the Russian Academy of Sciences, “Far East” Program (project 18-5-024).
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Translated by B. Shubik
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Kitov, I.O., Turuntaev, S.B., Konovalov, A.V. et al. Use of Waveform Cross Correlation to Reconstruct the Aftershock Sequence of the August 14, 2016, Sakhalin Earthquake. Seism. Instr. 55, 544–558 (2019). https://doi.org/10.3103/S0747923919050074
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DOI: https://doi.org/10.3103/S0747923919050074