YIELD ESTIMATION FOR NUCLEAR EXPLOSIONS OF SEMIPALATINSK USING RAYLEIGH WAVES RECORDED AT SRO, MASHHAD

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NAGHIZADEH MOHAMMAD; JAVAHERIAN A.; SADIDKHOUI A.

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Journal: JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT) Year:2005 | Volume:30 | Issue:2 Page(s): 217-228

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Title

YIELD ESTIMATION FOR NUCLEAR EXPLOSIONS OF SEMIPALATINSK USING RAYLEIGH WAVES RECORDED AT SRO, MASHHAD

Author(s)

NAGHIZADEH MOHAMMAD | JAVAHERIAN A. | SADIDKHOUI A. | Issue Writer Certificate

Keywords

SURFACE WAVES MAGNITUDEQ3

YIELD ESTIMATIONQ4

UNDERGROUND NUCLEAR EXPLOSIONSQ4

RAYLEIGH PHASEQ4

SROQ4

SEMIPALATINSKQ4

Abstract

Surface wave amplitudes from explosion sources show less variation for a given event than body wave amplitudes, so it is natural to expect that YIELD ESTIMATION derived from surface waves will be more accurate than YIELD ESTIMATION derived from body waves. However YIELD ESTIMATION from surface waves is complicated by the presence of tectonic strain release, which acts like one or more earthquake sources superimposed on the explosion. Explosions on an island or near a mountain slope can exhibit anomalous surface waves similar to those, caused by tectonic strain release. One of the methods in estimating the yield of nuclear explosions is to determine a relationship between the magnitude and the yield of an explosion. The kind of magnitude employed has an important role in this regard.In this paper, vertical component of long period seismograms at SRO, Mashhad from explosions occurred in SEMIPALATINSK Test Site (STS, east of Kazakhstan) are considered. First, by using the relationships of IASPEI and Rezapour and Pearce (1998), we determined surface wave magnitude (MS) which is defined as the logarithm of the amplitude plus a distance. correction. Then we derived a relation for Ms versus yield for a data set which includes 15 long period seismograms recorded at SRO Mashhad station from STS nuclear explosions. Furthermore, by digitizing the vertical component of seismograms and transforming them to the frequency domain, the mean amplitude of records at frequency ranges of 0.04 - 0.06 Hz were calculated. Then, surface wave magnitudes in. the frequency domain (Msf) and their corresponding yield-magnitude relationship were obtained. By comparing correlation coefficients of these two yield-magnitude relationships, following relationship Ms = 1.079 log(Y) + 1.714, was chosen for estimating the yield of STS nuclear explosion from seismograms of SRO.

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APA: Copy

NAGHIZADEH, MOHAMMAD, JAVAHERIAN, A., & SADIDKHOUI, A.. (2005). YIELD ESTIMATION FOR NUCLEAR EXPLOSIONS OF SEMIPALATINSK USING RAYLEIGH WAVES RECORDED AT SRO, MASHHAD . JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), 30(2), 217-228. SID. https://sid.ir/paper/2240/en

Vancouver: Copy

NAGHIZADEH MOHAMMAD, JAVAHERIAN A., SADIDKHOUI A.. YIELD ESTIMATION FOR NUCLEAR EXPLOSIONS OF SEMIPALATINSK USING RAYLEIGH WAVES RECORDED AT SRO, MASHHAD . JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT)[Internet]. 2005;30(2):217-228. Available from: https://sid.ir/paper/2240/en

IEEE: Copy

MOHAMMAD NAGHIZADEH, A. JAVAHERIAN, and A. SADIDKHOUI, “YIELD ESTIMATION FOR NUCLEAR EXPLOSIONS OF SEMIPALATINSK USING RAYLEIGH WAVES RECORDED AT SRO, MASHHAD ,” JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), vol. 30, no. 2, pp. 217–228, 2005, [Online]. Available: https://sid.ir/paper/2240/en

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