Seismic good quality of the Earth crust of the northern part pf the Ukrainian shield
Keywords:coda-waves, quality factor, attenuation
According to the records of superficial coda-waves from seismic events in the Kriviy Rig area receive value, quality factor (Q), frequency parameter (n) and attenuation factor (δ) of seismic waves in earth's crust of northern part Ukrainian shield have been obtained. To determine the quality factor digital recording of seismic signals from the area of Kriviy Rig produced network of seismic observations of the Main center of the special control (MCSK) over the last 10 years were used. The resulting empirical relationship for the northern part of the Ukrainian shield Qc(f) was used to clarify the formula for calculating the magnitude of the surface on the Lg-wave. Based on these data, the conclusion on the present level of tectonic activity in the study area has been made.
Aptikaeva O. I., 1991. Frequency dependence and the spatial and temporal variations of the Q pozapisyam equipment ChISS and SCM in the area of Garm test site. Earthquakes and their preparation processes. Moscow: Nauka, Р. 153—164 (in Russian).
Kopnichev Yu. F., Sokolova I. N., 2003. Spatial and temporal variations of the field absorption S-waves in the focal zones of strong earthq uakes of Tien Shan. Fizika Zemli. (5). 73—86 (in Russian).
Aki K., 1969. Analysis of the seismic coda of local earthquakes as scattered waves. J. Geophys. Res. 74, 615—631.
Aki K., 1981. Source and scattering effects on the spectra of small local earthquakes. Bull. Seismol. Soc. Am. 71, 1687—1700.
Aki K., Chouet B., 1975. Origin of coda-waves: source, attenuation and scattering effects. J. Geophys. Res. 80, 3322—3342.
Mak S., Chen L. S., Chandler A. M., Koo R., 2004. Coda Q estimates in the Hong Kong region. J. Asian Earth Sci. (24), 127—136.
Mitchell B., 1981. Regional variation and frequency dependence of Qb in the crust of the United States. Bull. Seismol. Soc. Am. 71, 1531—1538.
Mitchell B. J., Pan Y., Xie J.,Cong L., 1997. Lg coda Q variation across Eurasia and its relationto crustal evolution. J. Geophys. Res. 102, 22,767—22,779.
Rautian T. G., Khalturin V. I., 1978. The use of coda for determination of the earthquake source spectrum. Bull. Seismol. Soc. Am. 68, 923—948.
Sato H., 1977. Energy propagation including scattering effects single isotropic scattering approximation. J. Geophys. Res. 25, 27—41.
Sato H., Fehler M., 1998. Seismic wave propagation and scattering in the heterogeneous earth. Springer, Berlin, 308 p.
Sato H., Fehler M. C., Maeda T., 2009. Seismic Wave Propagation and Scattering in The Heterogeneous Earth. Berlin Heidelberg: Springer-Verlag, 494 p.
Sharov N. V., Malovichko A. A., Shchukin Ju. K., 2007. Earthquakes and microseismicity in modern geodynamics of the East European platform problems. Book 2: Microseismicity. Petrozavodsk: Karelian Research Centre of RAS, 96 p. (in Russian).
Summary of magninude working group recommendations on standard procedures for determining earthquake magnitudes from digital data. 2013.
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