DISCRIMINATION OF UNDERGROUND NUCLEAR EXPLOSIONS AND EARTHQUAKES FOR LOP NOR TEST SITE AREA BASED ON KNET NETWORK
https://doi.org/10.52676/1729-7885-2020-3-60-64
Abstract
A comparative analysis of the KNET waveforms of underground nuclear explosions conducted at regional distances at the Lop Nor test site (China) in 1992–1996, as well as tectonic earthquakes with epicenters in the same area, was carried out for the purposes of seismic discrimination. The spectral ratios of the main regional phases of Sn/Pn and Lg/Pg were studied with the aim of seismic recognition of the source nature. The best discrimination parameter is the Lg/Pg spectral ratios for narrow-band filters with central frequencies of 2,5 and 5 Hz.
About the Authors
A. V. Beryozina
Institute of Seismology of National Academy of Science of Kyrgyz Republic
Kyrgyzstan
Kyrgyzstan
Bishkek
I. N. Sokolova
Institute of Geophysical Research
Kazakhstan
Kazakhstan
Kurchatov
Ye. V. Pershina
Institute of Seismology of National Academy of Science of Kyrgyz Republic
Kyrgyzstan
Kyrgyzstan
Bishkek
T. V. Nikitenko
Institute of Seismology of National Academy of Science of Kyrgyz Republic
Kyrgyzstan
Kyrgyzstan
Bishkek
References
1. Vernon, F. Kyrghizstan seismic telemetry network. IRIS Newslett / F.Vernon. – 1992. − Vol. 11, № 1. − Р. 7–9.
2. Search Earthquake Catalog [Электронный ресурс]. – Режим доступа: https://earthquake.usgs.gov/earthquakes/search, свободный.
3. Peterson, J. Observation and Modeling of Seismic Background Noise / J. Peterson // Open-File Report 93-322/ – Albuquerque, New Mexico, 1993. − 42 pp.
4. Соколова, И.Н. О характеристиках сейсмического шума на периодах, близких к 1.7 с, по данным станций Северного Тянь-Шаня / И.Н.Соколова, Н.Н.Михайлова // Вестник НЯЦ РК, 2008. − Вып. 1. − С. 48–53.
5. Копничев, Ю.Ф. Распознавание ядерных взрывов и землетрясений на региональных расстояниях для полигона Лобнор / Ю.Ф. Копничев, О.М. Шепелев, И.Н.Соколова // Вестник НЯЦ РК, 2000. − Вып. 2. − С. 65–77.
6. Копничев, Ю.Ф. Исследования по сейсмическому распознаванию подземных ядерных взрывов на полигоне Лобнор / Ю.Ф. Копничев, О.М. Шепелев, И.Н.Соколова // Физика Земли, 2001. − № 12. − С. 64–77.
7. Соколова, И.Н. Распознавание подземных ядерных взрывов и землетрясений на региональных расстояниях / И.Н. Соколова // Российский геофизический журнал. – Санкт-Петербург, 2004. − № 35–36.
Review
For citations:
Beryozina A.V., Sokolova I.N., Pershina Ye.V., Nikitenko T.V. DISCRIMINATION OF UNDERGROUND NUCLEAR EXPLOSIONS AND EARTHQUAKES FOR LOP NOR TEST SITE AREA BASED ON KNET NETWORK. NNC RK Bulletin. 2020;(3):60-64. (In Russ.) https://doi.org/10.52676/1729-7885-2020-3-60-64
Views:
344
Email this article 