Volume 34 (2024)
Volume 33 (2023)
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)
The study of geology structures in the Kaki area (Bushehr province) in the Central Zagros using the 1-D travel time inversion

H. Kianimehr; F. Yaminifard; M. Tatar; E. Kissling

Volume 28, Issue 112 , August 2019, , Pages 281-288


  The Zagros fold and thrust belt contains a near continuous sedimentary cover which overlies the late Precambrian-Cambrian Hormuz salt formation. The information about this structure is only limited to the study of salt domes. As the density variation of salt is not noticeable with depth, it is expected ...  Read More

Investigation of stress and strain rate variations in the Central Alborz by using earthquake focal mechanisms and GPS velocity vector data

Shahrokh Pourbeyranvand; Mohammad Tatar

Volume 27, Issue 108 , September 2018, , Pages 57-66


  The Alborz, as one of the important seismotectonic provinces in Iran, has a great vulnerability from natural disasters, especially seismic risk point of view, because of the existence of Tehran megacity in its southern edge. The importance of this area has caused a relatively dense GPS network around ...  Read More

Weight induced-stress of the Gotvand-e Olya reservoir on the Golestan Fault

Mohammad Reza Ebrahimi; Mohammad Tatar

Volume 27, Issue 107 , June 2018, , Pages 193-202


  Impoundment of a reservoir and changes in the lake levels can trigger / induce the seismicity. In this research, the strength changes are modeled across the Golestan fault, due to loading effect of Gotvand-e Olya reservoir which is located in the Zagros Mountain of SW Iran. The formulas based on 3D Boussinesq ...  Read More

Tectonic Stress Variations in the Zagros Using Inversion of Earthquake Focal Mechanisms

SH Pourbeyranvand; M Tatar

Volume 24, Issue 1393 , March 2015, , Pages 115-122


  Having knowledge of stress variations in the Zagros region, southwest Iran is necessary to study the deformation resulting from oblique collision between the Eurasian & the Arabian plates and to obtain insight into the complicated tectonics of the region. In this study, earthquakes focal mechanism ...  Read More

Microseismicity and Seismotectonics of the Garmsar Area

M Tatar; S.M Momeni; F Yaminifard

Volume 24, Issue 1393 , March 2015, , Pages 289-298


  The V shape kink of the AlborzMountains at its southern end reaches to the Garmsar city located 100 km southeast of Tehran metropolis. We investigated seismicity and seismotectonic features of the Garmsar area by precisely locating of microearthquakes recorded by our local dense seismological network ...  Read More

Three Dimensional Structure of the BAM Region from Local Earthquake Tomography

Z. Jeddi; Mohammad Tatar; B. Saeedi Razavi

Volume 22, Issue 88 , December 2013, , Pages 31-40


  The catastrophic December 26, 2003 Mw 6.6 Bam earthquake is one of the most disastrous earthquakes in Iran. This earthquake attracted much attention, and has been far more studied that which would be expected from a moderate magnitude earthquake. Nevertheless, there are doubtful results related to geometry ...  Read More

Crustal Structure of Iran from Joint Inversion of Receiver Function and Phase Velocity Dispersion of Rayleigh Waves

Mohammad Tatar; M. Tatar; A. Kaviani

Volume 21, Issue 82 , December 2011, , Pages 83-94


  Crustal structure of the Iranian plateau which is located between two convergent Arabian and Eurasian plates is studied.  Teleseismic earthquakes recorded by broad band stations of Iranian National Seismic Network (INSN) are used to compute the receiver functions for each station. Rayleigh wave ...  Read More

Investigation of the Stress Heterogeneities Using b-value in Reservoir Induced Seismicity in the Masjed Soleyman Dam Area (South West of Iran)

M. R. Ebrahimi; Mohammad Tatar

Volume 20, Issue 78 , December 2011, , Pages 105-110


  Masjed Soleyman reservoir is located in Zagros Mountain of western Iran, which is one of the most seismically active zones of the Alpe-Hymalaya belt. So, it seems to be necessary to carry out widespread studies, especially on the impact of this reservoir with 177 m height and 261 million m3 capacity ...  Read More

Induced Seismicity in Masjed Soleyman Reservoir (Southwest of Iran)

Mohammad Tatar; M. R. Ebrahimi; F. Yamini Fard

Volume 20, Issue 80 , January 2011, , Pages 95-102


  Masjed Soleyman reservoir is located in Zagros Mountain of western Iran, which is one of the most seismically active zones of the Alpe-Himalaya belt. So, it seems to be necessary to carry out widespread studies, especially on the impact of this reservoir with 177 m height and 261 million m3  capacity ...  Read More

Crustal Velocity Model and Fault Mechanism of the Tabriz Strike-Slip Zone.

A. S. Moradi; M. Tatar; D. Hatzfeld; A. Paul

Volume 18, Issue 70 , February 2009, , Pages 140-153


  The North Tabriz Fault (NTF) is an active fault which poses a high seismic hazard to the areas of NW Iran, especially the city of Tabriz with a population of 1.6 million. In order to determine the geometry and the kinematics of this fault system, a local dense seismological network including forthy 3-component ...  Read More

The 2004 May 28 Firoozabad-Kojour (Iran) Earthquake, Ms 6.3, and its Aftershocks based on Recorded Data at Local Seismological Stations

M. Tatar; A. M. Farahbod

Volume 16, Issue 64 , March 2007, , Pages 24-37


             A moderate earthquake (Ms=6.3) struck the coastal region of north of Iran and the central Alborz on 28 May, 2004 was responsible of several damages and about 35 casualties. The mainshock was followed by a large number of aftershocks, the largest ...  Read More