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)
a-bValues for the Ahar-Varzaghan Earthquake, Northwestern Iran

A Alizadeh; R Safari

Volume 24, Issue 95 , June 2015, , Pages 155-160


  Seismic values are the main parameters in evaluating the neotectonic activity of a region. In August 11, 2011, two Mb=6.4 and Mb=6.3 earthquakes occurred in Ahar-Varzaghan region within 11 minutes. Seismotectonic investigations imply that the faults generating the events are the young faults of the regions. ...  Read More

Analysis of Neo-Tectonic Stress State of Zagros Orogeny and Separation of Stress Regimes by Earthquake Data

B Zamani G; N Kiyanizadeh; H Parhizgari

Volume 24, Issue 95 , June 2015, , Pages 219-230


  In this research, the stress state in the Zagros fold and thrust belt is studied using inversion method analysis of focal mechanisms of earthquakes related to active faults of this region. Geological, structural and seismic differences throughout the Zagros fold and thrust belt led us to divide it into ...  Read More

Geological and Seismic Study of the August 27, 2010 Touchahi Earthquake MN=5.9 (South of Damghan City)

M.A Shokri; M Foroutan; M Nemati; M.J Bolourchi; SH Javadipour; B Oveisi

Volume 24, Issue 95 , June 2015, , Pages 281-292


  The Touchahi earthquake of Aug 27, 2010 (MN 5.9; IRSC- Mw 5.7; USGS) occurred at 19:23:49 UTC (23:53:49 local time on 5 Shahrivar 1389) in south of Damghan city. No foreshock were reported before this earthquake whereas 85 aftershocks (MN 1-5) were registered by IRSC until 1 month after the mainshock. ...  Read More

Geotechnical Investigation and Seismic Zonation of Alluvial Deposits in Western Tehran

U Alladin; M Talebian; M Arian; M.M Ahmadi

Volume 24, Issue 95 , June 2015, , Pages 333-343


  Earthquake is an undeniable phenomenon that can cause financial and social damage if occur in populated areas.  Vulnerability of buildings is not just function of magnitude and distance from the epicenter but also depends on physical properties of soil. In this study we evaluate physical properties ...  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

Investigation of Seismotectonics of Eastern South Caspian Basin Using Earthquakes Focal Mechanism and Geomorphological Investigations

M Nemati; J Hollingsworth; M.R Ghassemi

Volume 24, Issue 1393 , March 2015, , Pages 133-140


  Our research focuses on the seismotectonics of the north of Eastern Alborz and southeast of the Caspian Sea. Eastern part of the Caspian fault, and seismological active plain situated in north of the area have been studied. The seismological data of microearthquakes (ML>4.5) recorded by the local ...  Read More

Temporal Distribution Pattern of the Earthquakes in the SE Zagros

M Agh-Atabai

Volume 24, Issue 1393 , March 2015, , Pages 245-254


  In this paper, the properties of temporal distribution of earthquakes in southeast Zagros were studied using multifractal methods. To describe the multifractal characteristics of the occurrence time of events, the generalized correlation dimensions Dq and the singularity spectrum f(αq) were calculated ...  Read More

Multifractal Analysis of Earthquake Epicenters in the Golestan Province

M Agh-Atabai

Volume 23, Issue 92 , September 2014, , Pages 123-128


  The Golestan province lies on one of the seismically active zones of the world. The occurrence of numerous historical and instrumental earthquakes in this area indicates its high seismic activity. Therefore, it is necessary to study its seismicity using different methods. In this research, the mono and ...  Read More

Developing a Model to Assess Seismic Instability against Earthquake using Fuzzy & IHPW and GIS

K. Habibi; M. Behzadfar; A. Meshkini; S. Nazari

Volume 22, Issue 87 , December 2013, , Pages 83-92


  Due to its geographic position and located on the World earthquake belt; Iran is always under threat from earthquakes and several shakes are recorded every year all over the country. The most recent earthquake with 6.8 degree magnitude on the Richter scale hit the city of Bam in 2003 and caused large ...  Read More

First Records of 1384 AD Shahr-e-Rey’s Historical Earthquake on Pishva Fault based on Paleoseismology Researches, South East of Tehran

T. Majidi Niri; H. Nazari; M. Ghorashi; M. Talebian; A. Kaveh Firooz

Volume 21, Issue 81 , December 2011, , Pages 169-178


  Pishva fault with about 35km length is located between Alborz and Central Iran structural zones in southeast of Varamin. General trend of the fault is NW-SE (N38W, 33NE) which has reverse mechanism accompanied by sinistral component. Achieved Morphotectonic studies along the Pishva fault reveal its activity.  ...  Read More

Estimating Slip Rates of Faults around Bam and their Application in Evaluation of Earthquake Hazard

M. Talebian; S. H. Tabatabaei; M. Fattahi; M. Ghorashi; A. Beitollahi; A. Ghalandarzadeh; M.A. Riahi

Volume 19, Issue 74 , February 2010, , Pages 149-156


  The Iranian plateau lies between the Arabian and Eurasian plates and accommodates approximately 22 mm/yr of N-S shortening.  About 9 mm/y of this shortening is taken up by folding and thrusting in the Zagros while the remaining 13 mm/yr is taken up in the Alborz and Kopeh-Dagh. The Central Iran ...  Read More

Comparison of Seismic, Geologic and Geodetic Moment Rates in Central Alborz

M. Asadi sarshar; A. Bahroudi; M. Qorashi; M. R. Ghassemi

Volume 19, Issue 75 , January 2010, , Pages 19-24


  Estimate of moment rate is comparatively reckoned as a new method for dealing with tectonic activities rate in different regions and it prepares the way for putting together different methods. In fact, moment rate states rate of energy which exists in deformation system. There are three different approaches ...  Read More

History of Tsunami Occurrences and Assessment of Tsunami Generation Potential of Makran Subduction Zone

M. Heidarzadeh; M. Dolatshahi Pirooz; N. Zaker; M. Mokhtari

Volume 17, Issue 68 , February 2008, , Pages 150-169


  This research attempts to assess the history of tsunami occurrences and potential for tsunami generation at the southern coasts of Iran bordering the Indian Ocean by providing a list of historical tsunamis in this region and also, modeling of phases of tsunami generation and propagation. After the December ...  Read More

Quantification of the Spatial-Temporal Distribution of Aftershocks Associated with the 2006 Darb-e-Astaneh (Silakhor) Earthquake, western Iran

A. Zamani; M. Agh-Atabai

Volume 17, Issue 65 , March 2007, , Pages 70-79


  The 31 March, 2006 earthquake with Mw=6.1 destroyed villages in the Darb-e-Astaneh (Silakhor) region of the Lurestan province. The epicenteral area of this earthquake lies near the Main Recent Fault (MRF) and its right lateral mechanism indicates that it belongs to this fault zone. The main shock was ...  Read More

The Role of Earthquake and the Historical Events in Devastation of the City of Shadyakh

A. Kangi; A. Rastgou; F. Ebrahimi; N. Kangi

Volume 16, Issue 64 , March 2007, , Pages 179-185


  Shadyakh, commonly deemed as the headquarters of NeishabourCity, has so far endured such various events as war, earthquake, and other natural disasters. What has been revealed through recent archeological excavations convincingly depicts a brilliant scientific, cultural, and political manifestation of ...  Read More