Volume 32 (2022)
Volume 31 (2021)
Volume 30 (2020)
Volume 29 (2020)
Volume 28 (2019)
Volume 27 (2018)
Volume 26 (2017)
Volume 25 (2016)
Volume 24 (2015)
Volume 23 (2014)
Volume 22 (2013)
Volume 21 (2012)
Volume 20 (2011)
Volume 19 (2010)
Volume 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Site effect evaluation using microtremor measurements in the city of Shiraz

J Asadifallah; M Zare; M.R Gheytanchi

Volume 26, Issue 101 , December 2017, , Pages 167-172


  Natural frequency of soil is an important factor in site effect studies. In order to determine this parameter, microtremor measurements were applied as a fast, simple and economic tool. For this purpose, microtremors were recorded in 74 points with time durations of 5 to 10 minutes throughout the city ...  Read More

Love wave tomography of the Makran subduction zone from ambient seismic noise

M Abdetedal; Z.H Shomali; M.R Gheitanchi

Volume 26, Issue 102 , March 2017, , Pages 147-152


  The Makran zone in southeastern Iran and southern Pakistan is the result of subduction of oceanic crust of the Arabian Plate under the Eurasian Plate. From seismic behavior point of view, there is a distinct segmentation between the western and eastern parts of the subduction zone. The western part of ...  Read More

Seismotectonic of the Eastern Alborz with a Point of View to the South of Damghan MW=5.7 Earthquake

M. Nemati; D. Hatzfeld; M. R. Gheitanchi; M. Talebian; N. Mirzaei; A. Sadidkhouy

Volume 22, Issue 86 , December 2012, , Pages 87-98


  The Shahroud fault system plays important role in seismotectonic of the eastern Alborz. In this paper we have surveyed the seismicity of the middle-eastern Alborz and its southern area. At this investigation, the data of the Geological Survey of Iran local seismological networks, the seismological networks ...  Read More

Moho Depth Variations and vp/vs Ratio in Northwest of Zagros (Kermanshah Region) using Teleseismic Receiver Functions

N. Afsari; F. Sodoudi; M. R. Gheitanchi; A. Kaviani

Volume 19, Issue 74 , February 2010, , Pages 45-50


  Characterization of the detailed structure of the crust and upper mantel is an important continuing goal of geophysical studies. Teleseismic body waveforms have been used to infer crust and upper mantel structure. In this study we use teleseismic receiver function method to determine the crustal thickness ...  Read More

Crustal Structure Beneath Northwest Iran Using Teleseismic Converted Waves

F. Taghizadeh-Farahmand; F. Sodoudi; M. R. Gheitanchi; A. Kaviani

Volume 19, Issue 74 , February 2010, , Pages 131-136


  We compute p receiver functions (RF) to investigate the crustal thickness and Vp/Vs ratio beneath the northwest of Iran and map out the lateral variation of Moho depth under this region. We selected data from teleseismic events (Mb≥5.5, 30˚>r  > 95˚) recorded since 2000 to present at ...  Read More

Dynamic Fracture Process of Bam Earthquake

M. Eskandari; M. R. Gheitanchi

Volume 19, Issue 75 , January 2010, , Pages 109-114


  In this article, we studied the dynamic fracture process of Bam earthquake. In two presented models stress heterogeneity on the fault plain was modeled as barrier or asperity and friction included as slip-weakening relationship. Results of models were constrained by near field ground motion recorded ...  Read More