Seismic hazard and seismicity parameters in southwestern Alborz

Authors

  • Fereshteh Pourmohammad Department of Geophysics, North Tehran Branch, Islamic Azad University, Tehran, Iran
  • Mehdi Zare International Institute of Seismology and Earthquake Engineering, Tehran, Iran
  • Arezoo Dorostian Department of Geophysics, North Tehran Branch, Islamic Azad University, Tehran, Iran
  • Bahram Akasheh Department of Geophysics, North Tehran Branch, Islamic Azad University, Tehran, Iran

DOI:

https://doi.org/10.5377/nexo.v34i02.11550

Keywords:

Earthquake, Seismic zones, Magnitude, Return period

Abstract

Alborz Province is located west of Tehran Province on the South Alborz seismic belt. Geological and seismological analyses within a radius of 200 km from the center of Karaj identified five seismic zones and seven linear seismic sources. The maximum magnitude was calculated for the seismic zones using available correlations. The Kijko and Sellevoll (1992) method was used to calculate seismicity parameters, and the graphs of the return period and the probability frequency of recurrence of the earthquake magnitude in each zone were plotted for the 475-year return period. According to the calculations, the highest and lowest earthquake magnitudes of 7.6 and 6.2 were respectively obtained in Zones 1 and 4.

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Published

2021-06-07

How to Cite

Pourmohammad, F., Zare, M., Dorostian, A., & Akasheh, B. (2021). Seismic hazard and seismicity parameters in southwestern Alborz. Nexo Scientific Journal, 34(02), 661–670. https://doi.org/10.5377/nexo.v34i02.11550

Issue

Vol. 34 No. 02 (2021)

Section

Articles

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