METADATA IN ENGLISH

About the journal

SEISMICHESKIE PRIBORY, ISSN: 0131-6230, eISSN: 2312-6965, DOI: 10.21455/si,

http://elibrary.ru/title_about.asp?id=25597

English Translation: Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online),

https://link.springer.com/journal/11990

Using waveforms cross correlation

to recover aftershock sequence of the

August 14, 2016 earthquake on Sakhalin

1 Institute of Geospheres Dynamics, Russian Academy of Sciences, Moscow, Russia

2 Sakhalin Department of Far East Geological Institute, Far East

Branch, Russian Academy of Sciences (SD FEGI FEB RAS), Yuzhno-Sakhalinsk, Russia

3 Geophysical Technologies LLC, Yuzhno-Sakhalinsk, Russia

4 Institute of Tectonics and Geophysics of the Far Eastern Science Centre of the Russian Academy of Sciences, Khabarovsk, Russia

Corresponding author: A.A. Stepnov, e-mail: a.stepnov@geophystech.ru

Abstract. The cross-correlation of seismic waveforms is used to detect the signals from aftershocks of the earthquake of 08/14/2016 ML = 6.1 on Sakhalin Island at regional stations. The occurrences of the regular P- and S-wave phases are associated with the seismic sources, creating a cross-correlation bulletin that is compared with the standard bulletin for the same aftershock sequence. The advantage of the cross-correlation bulletin is a greater number of the seismic events found with three or more associated stations, a decrease in the catalog completeness threshold, as well as a more accurate determination of the epicenters of even the weakest aftershocks. Refined aftershock locations tend to cluster in a narrow zone corresponding to the western (hanging) side of the Central-Sakhalin Fault, which defines the boundary between the Okhotsk and Eurasian (Amur) plates.

Keywords: seismic waveform cross-correlations, master event, seismic signal detection, aftershocks, Sakhalin Island

About the authors

KITOV Ivan Olegovich – Doctor of Physics and Mathematics, Leading Researcher, Institute of Geospheres Dynamics, RAS, Moscow, Russia. 119334, Moscow, Leninsky Prospect, 38, building 1. Phone: +7(495) 939-75-82. E-mail: Ikitov@mail.ru

KONOVALOV Alexey Valerievich – Candidate of Physical and Mathematical Sciences, Branch Director, Far East Geological Institute of the Far East Branch of the Russian Academy of Science, 693023 Yuzhno-Sakhalinsk, ul. Gorky, 25; Deputy Director for Science, Geophysical Technologies LLC. 693006, Sakhalin Region, Yuzhno-Sakhalinsk, Purkaeva, 116, office 704 (Meridian Merchant Center). E-mail: a.konovalov@geophystech.ru

STEPNOV Andrei Aleksandrovich – Candidate of Physical and Mathematical Sciences, senior researcher, Far East Geological Institute of the Far East Branch of the Russian Academy of Science, 693023 Yuzhno-Sakhalinsk, ul. Gorky, 25; Deputy Director for Commercial Affairs, Geophysical Technologies LLC. 693006, Sakhalin Region, Yuzhno-Sakhalinsk, ul. Purkaeva, 116, office 704 (Meridian Merchant Center). E-mail: a.stepnov@geophystech.ru

TURUNTAEV Sergey Borisovich – Doctor of Physics and Mathematics, Director, Institute of Geospheres Dynamics, RAS, Moscow, Russia. 119334, Moscow, Leninsky Prospect, 38, building 1. E-mail: stur@idg.chph.ras.ru

PUPATENKO Victor Victorovich – researcher, Institute of Tectonics and Geophysics of the Far Eastern Science Centre of the Russian Academy of Sciences. 680000, Khabarovsk, Kim Y. Chen Str., 65. E-mail: pvv2.dv.@gmail.com

Cite this article as: Kitov I.O., Turuntaev S.B., Konovalov A.V., Stepnov A.A., Pupatenko V.V. Using waveforms cross correlation to recover aftershock sequence of the August 14, 2016 earthquake on Sakhalin. Seismicheskie Pribory (Seismic Instruments), 2019, Vol. 55, no. 1, pp. 59–68. (in Russian). https://doi.org/10.21455/si2019.1-4

English translation of the article will be published in Seismic Instruments, ISSN: 0747-9239 (Print) 1934-7871 (Online), https://link.springer.com/journal/11990), 2020, Volume 56, Issue 1.