Theoretical Article

DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS

Volume: 22 Number: 2 December 30, 2022

DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS

Abstract

Based on the correlation of GPS data and hypocenters of strong earthquakes, the boundaries were identified and the depths of occurrence of active tectonic blocks in the areas of the southeastern subsidence of the Greater Caucasus, the Kura depression and the Talysh zone of Azerbaijan were determined. It has been established that the velocity field of GPS observations on the territory of Azerbaijan clearly illustrates the predominance of the movement of the earth's crust in the N-NE direction relative to Eurasia. The most clearly manifested feature of the velocity field is a decrease in velocity at observation points located on the territory of the Greater Caucasus. GPS observation points located along the MCT show a decrease in speed in an easterly direction. N-NE movement of the earth's surface is interpreted as one of the reasons for the accumulation of stresses on this thrust. In addition, there is a tendency for horizontal movement within the Kura depression and the Lesser Caucasus, where the speed increases from west to east along the strike of the mountain range. In addition, the analysis of the azimuth angles showed an increase at the stations located on the Absheron Peninsula. Based on the correlation of GPS data and hypocenters of strong earthquakes, in the GubaGusar region in the direction NW-SE at a depth of 5 to 40 km, a block with velocities of 5.8 mm/g and a length of 55 km is distinguished. On the depth profile of Zakatala-Gobustan (NW-SE) in the southeast direction at an epicentral distance of 20 to 250 km, a gradual subsidence of the tectonic block is observed with velocities of 6.25 mm/g from a depth of 20 to 55 km. In the zone of the West Caspian fault at depths from 5 to 35 km, a block boundary is distinguished with velocities of 7.25 mm/y. On the eastern side of this block, a block is distinguished at depths of 10–25 km with values of 9 mm/y.

Keywords

References

  1. 1. Altamimi Z., Rebischung P., Métivier L., Collilieux X. ITRF2014: A new release of the International Terrestrial Reference Frame modelling nonlinear station motions // Journal of Geophysical Research. Solid Earth. 2016. V. 121. P. 6109–6131. doi:10.1002/2016JB013098
  2. 2. Ana Paula Marins Chiaradia, Hélio Koiti Kuga,and Antonio Fernando Bertachini de Almeida Prado Onboard and Real-Time Artificial Satellite Orbit Determination Using GPS // Mathematical Methods Applied to the Celestial Mechanics of Artificial Satellites, 2013, https://doi.org/10.1155/2013/530516
  3. 3. Beutler G., Brockmann E., Gurtner W., Hugentobler U., Mervart L., Rothacher M., Verdun A. Extended orbit modeling techniques at the CODE processing center of the international GPS service for geodynamics (IGS): theory and initial results // Manuscripta Geodaetica. – 1994. – V. 19. – P. 367–386.
  4. 4. DeMets C., Mattioli G., Jansma P., D.Rogers R., Tenorio C., L. Turner H. GPS-geodetic measurements from Honduras and Nicaragua Present motion and deformation of the Caribbean plate: Constraints from new // Geological Society of America Special Papers. 2007. V. 428. Р. 21–36. doi:10.1130/2007.2428(02).
  5. 5. Devi M., Barbara A. Total electron content and anomalous appearance of GPS-satellites as pointers to epicentre identification of major Japan earthquake of 2011 // Positioning. 2012. V. 3, № 1. Р. 7–12. doi:10.4236/pos.2012.31002.
  6. 6. Herring T.A. GLOBK: Global Kalman filter VLBI and GPS analysis program version 4.1. Cambridge, MA: Massachu setts Institute of Technology. 2004
  7. 7. King R.W., Herring T.A., Floyd M.A., McClusky S.C. GAMIT/GLOBK Overview [Электронный ресурс].  URL: http://geoweb.mit.edu/~floyd/courses/gg/201807_Bishkek. – 2018.
  8. 8. Reilinger R. et al. GPS constraints on continental deformationin the Africa-Arabia-Eurasia continental collision zone andimplications for the dynamics of plate interactions // J. Geophys. Res. 2006б. BO5411. doi: 10.1029/2005JB004051

Details

Primary Language

English

Subjects

Seismology and Seismic Exploration, Geophysics (Other)

Journal Section

Theoretical Article

Authors

Ilyas Kazimov This is me
Azerbaijan

Aygun Kazimova This is me
Azerbaijan

Publication Date

December 30, 2022

Submission Date

October 20, 2022

Acceptance Date

October 25, 2022

Published in Issue

Year 2022 Volume: 22 Number: 2

APA
Yetırmıshlı, G., Kazimov, I., & Kazimova, A. (2022). DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS. Seismoprognosis Observations in the Territory of Azerbaijan, 22(2), 15-22. https://izlik.org/JA35HK28XY
AMA
1.Yetırmıshlı G, Kazimov I, Kazimova A. DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS. Seismoprognosis Observations in the Territory of Azerbaijan. 2022;22(2):15-22. https://izlik.org/JA35HK28XY
Chicago
Yetırmıshlı, Gurban, Ilyas Kazimov, and Aygun Kazimova. 2022. “DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS”. Seismoprognosis Observations in the Territory of Azerbaijan 22 (2): 15-22. https://izlik.org/JA35HK28XY.
EndNote
Yetırmıshlı G, Kazimov I, Kazimova A (December 1, 2022) DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS. Seismoprognosis Observations in the Territory of Azerbaijan 22 2 15–22.
IEEE
[1]G. Yetırmıshlı, I. Kazimov, and A. Kazimova, “DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS”, Seismoprognosis Observations in the Territory of Azerbaijan, vol. 22, no. 2, pp. 15–22, Dec. 2022, [Online]. Available: https://izlik.org/JA35HK28XY
ISNAD
Yetırmıshlı, Gurban - Kazimov, Ilyas - Kazimova, Aygun. “DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS”. Seismoprognosis Observations in the Territory of Azerbaijan 22/2 (December 1, 2022): 15-22. https://izlik.org/JA35HK28XY.
JAMA
1.Yetırmıshlı G, Kazimov I, Kazimova A. DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS. Seismoprognosis Observations in the Territory of Azerbaijan. 2022;22:15–22.
MLA
Yetırmıshlı, Gurban, et al. “DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS”. Seismoprognosis Observations in the Territory of Azerbaijan, vol. 22, no. 2, Dec. 2022, pp. 15-22, https://izlik.org/JA35HK28XY.
Vancouver
1.Gurban Yetırmıshlı, Ilyas Kazimov, Aygun Kazimova. DETERMINATION OF THE DEPTHS OF THE ACTIVE BLOCKS ACCORDING TO THE DATA OF THE GPS STATIONS. Seismoprognosis Observations in the Territory of Azerbaijan [Internet]. 2022 Dec. 1;22(2):15-22. Available from: https://izlik.org/JA35HK28XY