On November 14, 2021 in the Fin Hormozgan region, two earthquakes with magnitudes of Mw 0.6 and 6.3 occurred with an interval of one minute. The PGA recorded at Siahoo station was 369 cm/s^2 for the first earthquake at a distance of 19 km and 565 cm/s^2 for the second earthquake at a distance of 15 km.
The study of the distribution of damage in different earthquakes such as Sarpol-e Zahab shows the importance of the impact of the site-effect on the earthquake characteristics. Earthquake waves are amplified or attenuated at certain frequencies when propagating from the bedrock to the surface under the influence of dynamic alluvial properties. We see more damage in areas where amplification occurs. In this paper, using accelerometers recorded in the Fin region, the effective duration of the earthquake, the H/V spectral ratio, and the response spectra of the vertical and horizontal components are investigated