Abstract
This paper presents the travel times of P waves for 8 Yucca Flat (Nevada Test Site NTS) explosions from 1979 to 1984, with magnitudes mb = 4.9–5.9. Travel times were obtained by revising seismograms from the archives Sadovsky Institute of Geosphere Dynamics for the subsystem “Ozherel’e” (Necklace) of peripheral points Zerenda, Vostochniy, Chkalovo of the large-base seismic array system (SAS) of the geophysical observatory Borovoye. This system has been operating since 1979 on the territory of Kazakhstan. By the example of registration of underground nuclear explosions at the Yucca site of the Nevada Test Site (NTS), local travel time curves and linear trends in the P wave travel time in the range of epicentral distances 89.3110°–90.3701° are investigated. We estimate of the velocities of effective P waves for the Yucca-“Ozherel’e” and peripheral points.
Publisher
Republican State Enterprise "National Nuclear Center of the Republic of Kazakhstan"
Reference21 articles.
1. ISTC Site. Kazakhstan Seismic Monitoring System #K-1049 30.06.2003 (2021). Avaliable at https://www.istc.int/en/project/40F48AFADCECF322C3256D550041404E#
2. Mikhaylova N.N., Komarov I.I., Sineva Z.I., Sokolova I.N. Kazakhstanskiy tsentr sbora i obrabotki spetsial'noy seysmicheskoy informatsii: funktsii, zadachi, sistema telekommunikatsiy, bazy dannykh // Vestnik NYaTs RK. – 2001. – Issue. 2. – P. 21– 26.
3. Kopnichev Y.F., Sokolova I.N., Sokolov K.N. Spatiotemporal variations in the structure of the attenuation field of the S-wave in the region of Nevada nuclear test site // Izv. Phys. Solid Earth. – 2013. – Vol. 49. – pp. 786–795. https://doi.org/10.1134/S1069351313060086
4. Pyle M.L., Myers S.C., Walter W.R., Smith K.D. Accurate Local Event Locations in Rock Valley, Nevada, Using a Bayesian Multiple‐Event Method // Bull. Seismol. Soc. Am. – 2015. – Vol. 105. – pp. 706–718. https://doi.org/10.1785/0120140251
5. Liverman J.L. Nevada Test Site. Nye County, Nevada. Final Environmental Impact Statement. – 1977. https://inis.iaea.org/collection/NCLCollectionStore/_Public/09/362/9362842.pdf