Javan Doloei

Javan Doloei
International Institute of Earthquake Engineering and Seismology | iiees · Seismological Research Center, Seismology Department

Professor (Associate)
Director of Seismological Research Center

About

91
Publications
37,040
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283
Citations
Introduction
Javan Doloei, currently works at the Department of Seismology at the Seismological Research Center of IIEES, Tehran. Javan Doloei is the head of Iranian National Broadband Seismic Network since Dec 2017. On 12th May 2018, Javan has selected as General Director of National Iranian Geophysical Society (NIGS) for a period of three years. Javan does research in Earthquke Seismology, Seimology and Engineering Geophysics. His most recent publication is on ' Crustal Structure based on the Teleseismic Receiver Functions', 'Seismic Source Modeling', 'Seismic Anisotropy', 'Seismic Attenuation' and 'Ambient Noise Tomography'.
Additional affiliations
May 2018 - May 2021
National Iranian Geophysical Society (NIGS)
Position
  • Head of Department
Description
  • National Iranian Geophysical Society (NIGS) is a scientific community from all Iranian geophysicists that has established since 1975. At the moment NIGS have more than 3000 members.
December 2017 - present
International Institute of Earthquake Engineering and Seismology
Position
  • Head of Department
September 2004 - May 2005
Institute for Advanced Studies in Basic Sciences
Position
  • Lecturer
Description
  • 1- Earthqauke Seismology (1) - M. Sc. Course in Geophysics , 2- Advances in Earthqauke Seismology - - Msc Course in Geophysics

Publications

Publications (91)
Article
North-West Bandar-Abbas Earthquake Duplet (Mw 6.1, 6.4) and its source identification 1Hamid Khosravi, 2Mahdieh Safari, 3Gholam Javan Doloei, 2Azar Afshar, 3*Khaled Hessami 1Ph.D. Student of Seismology, International Institute of Earthquake Engineering, Tehran, Iran 2M.Sc. of Seismology, International Institute of Earthquake Engineering, Tehran,...
Poster
Full-text available
In this research, the difference between the velocity of Rayleigh and Love waves is used to determine radial anisotropy beneath the Zagros belt. The continuous ambient noise data are processed to image 2-D tomographic dispersion maps from the period of 8 to 50 s. Then, a quasi-3D shear wave velocity and radial anisotropy model are calculated by joi...
Article
Full-text available
Summary Seismic velocity changes and shear wave anisotropy analysis can provide insights into deep structures. In multi-layered structures, cosine moveout pattern of radial component is observed for converted Ps phase. The method to calculate anisotropy parameters in layered structures has been developed by Ruempker et al. (2014). Some seismic stat...
Article
Full-text available
This study presents a 3D model of the crustal and uppermost mantle shear wave velocity and radial anisotropy beneath the Iran Plateau constructed by Rayleigh and Love waves from ambient noise. We correlate three years of continuous seismic ambient noise data recorded in ninety-eight stations to obtain cross correlation functions. Then, we measure R...
Article
In this paper, we examined the influence of initial parametrization in the inversion of surface wave dispersion curves. First, the steps of choosing the most desirable parameters are described. Then, the influence of parametrization is investigated with two experimental and one systematic approach to find a consistent solution. The final results sh...
Article
Full-text available
Estimation of Seismic Wave Attenuation in Fariman Region Document Type : Research Article Abstract: Attenuation of seismic waves is considered a very important characteristic of the wave propagation path because this physical parameter affects how the seismic waves propagate, and consequently knowing the amount of it is essential in accurate calcu...
Conference Paper
Full-text available
In this study, the body waves travel time curve in Fariman region has been recorded based on aftershocks in the temporal seismology network of the “International Institute of Earthquake and Seismology (IIEES)”, and the velocity of body waves in this region has been calculated. By using appropriate travel time algorithms, we read 555 body phases and...
Conference Paper
Full-text available
Utilizing the aftershocks of the 21th, Aban, 1396 Ezgeleh-Sarpolzahab earthquake at 21:48 of local time (12th, November 2017 at 18:18 of global time), the single-back scattering method for coda waves are employed. In order to achieve this, 170 accelerograms of local earthquakes having magnitudes between 3.8 and 6 Mw recorded by the accelerogram net...
Conference Paper
Full-text available
Utilizing the aftershocks of the 21th, Aban, 1396 Ezgeleh-Sarpolzahab earthquake at 21:48 of local time (12th, November 2017 at 18:18 of global time), the single-back scattering method for coda waves are employed. In order to achieve this, 170 accelerograms of local earthquakes having magnitudes between 3.8 and 6 Mw recorded by the accelerogram net...
Conference Paper
Full-text available
1 ، ‫اﺣﻤﺪزاده‬ ‫ﺳﻤﯿﻪ‬ 2 ، ‫دﻟﻮﺋﯽ‬ ‫ﺟﻮان‬ ‫ﻏﻼم‬ 3 * ، ‫ﺗﻘﺎﺑﻨﯽ‬ ‫ﻣﺴﻌﻮد‬ ، 4 1 ‫ﺷﻨﺎﺳﯽ‬ ‫زﻟﺰﻟﻪ‬ ‫دﮐﺘﺮي‬ ‫داﻧﺸﺠﻮي‬ ، ‫زﻟﺰﻟﻪ‬ ‫ﻣﻬﻨﺪﺳﯽ‬ ‫و‬ ‫ﺷﻨﺎﺳﯽ‬ ‫زﻟﺰﻟﻪ‬ ‫اﻟﻤﻠﻠﯽ‬ ‫ﺑﯿﻦ‬ ‫ﭘﮋوﻫﺸﮕﺎه‬ 2 ‫آﻣﻮﺧﺘﻪ‬ ‫داﻧﺶ‬ ‫دﮐﺘﺮي‬ ‫ﺷﻨﺎﺳﯽ‬ ‫زﻟﺰﻟﻪ‬ ، ‫زﻟﺰﻟﻪ‬ ‫ﻣﻬﻨﺪﺳﯽ‬ ‫و‬ ‫ﺷﻨﺎﺳﯽ‬ ‫زﻟﺰﻟﻪ‬ ‫اﻟﻤﻠﻠﯽ‬ ‫ﺑﯿﻦ‬ ‫ﭘﮋوﻫﺸﮕﺎه‬ 3 * ‫ﻋﻀﻮ‬ ‫ﻋﻠﻤﯽ‬ ‫ﻫﯿﺎت‬ ، ‫زﻟﺰﻟﻪ،‬ ‫ﻣﻬﻨﺪﺳﯽ‬ ‫و‬ ‫ﺷﻨﺎﺳﯽ‬ ‫زﻟﺰﻟﻪ‬ ‫اﻟﻤ...
Conference Paper
Full-text available
Development of hybrid of MO_WDT and AR method for Automatic Seismic S Phase Detection Mohammad Shokri Kaveh, Nasim Karamzadeh, Gholam Javan Doloei* Abstract: Automatic S-phase arrival time estimation is due to the complex characteristics of most of the S-onsets a topic of ongoing research. Manual as well as automated S-phase picking is more diffi...
Conference Paper
Full-text available
‬ Crustal radial anisotropy beneath Iran plateau based on ambient noise study Abstract: In recent years, ambient noise tomography (ANT) has been applied as a favorable tool to image crustal structures. Based on this method, the cross-correlation between random oscillations recorded at two stations corresponds to the empirical Green's function (EGF...
Article
Full-text available
New empirical relations between macroseismic intensity and ground motion parameters including peak ground acceleration and velocity are developed using strong ground motion data and Modified Mercalli Intensity (MMI) information from earthquakes within Iran plateau. The strong motion data consists of 116 three-component waveforms of 23 earthquakes w...
Article
Full-text available
In this study, the attenuation of coda waves has been estimated in the western part of Iran plateau using single backscattering method. Coda wave attenuation was estimated at seven central frequencies (fc = 1.5, 3, 4.5, 6, 9, 12, 18 Hz) and eight lapse times (tl= 10, 20, 30, 40, 50, 60, 70, 80s). More than 9100 local earthquakes with magnitude rang...
Article
هبود روش تعیین پارامترهای ناهمسانگردی با استفاده از جدایش فاز برشی Ps (مطالعه موردی ایستگاه های ‌لرزه نگاری باندپهن‌ منطقه کرمان و بندرعباس) The study of anisotropy parameters determines the relationship between surface structures and dynamic processes in structures with greater depth. Determining seismic anisotropy in the lithosphere and asthenosp...
Article
More accurate crustal structure models will help us to better understand the tectonic convergence between Arabian and Eurasian plates in the Iran plateau. In this study, the crustal and uppermost mantle velocity structure of the Iran plateau is investigated using ambient noise tomography. Three years of continuous data are correlated to retrieve Ra...
Article
Full-text available
New intensity prediction equation is evaluated for Iran using isoseismal maps of 31 earthquakes with MW 5.1–7.4 occurred from 1939 to 2017 including 7.3 destructive Sarpol-e Zahab earthquake on 12 November 2017. The obtained intensity prediction equation based on Modified Mercalli Intensity (MMI) scale for intensity range 4 to10 and distances less...
Article
New intensity prediction equation is evaluated for Iran using isoseismal maps of 31 earthquakes with MW 5.1–7.4 occurred from 1939 to 2017 including 7.3 destructive Sarpol-e Zahab earthquake on 12 November 2017. The results show different distance-dependent intensity attenuation rate in comparison with previous studies for Iran and other regions of...
Conference Paper
Full-text available
Using the temporary network data installed by the International Institute of Seismology and Earthquake Engineering in the Fariman region, the one-dimensional speed model used to determine locations, which is the country speed model, was optimized and the locators were refined. The results indicate the presence of a new fault patch in the area, whic...
Conference Paper
To study the simulation of the strong ground motion, accurate determination of focal mechanism and magnitude, seismic hazard analysis and seismic zoning, calculating the Q parameter are important. In this study, we used data from earthquake aftershocks of the April 5, 2017 with Magnitude of Mw=6.0. The single back scattering method was used to calc...
Article
Full-text available
The Mw 6.0 Do-Ghaleh Fariman earthquake occurred at 10:39 local time (06:09 GMT) on 2017 April 5, in 46 km away from Fariman city of Khorasan Razavi province in northeast Iran (Figure 1). The mainshock had a maximum Mercalli intensity of VIII (Severe) (Ahmadzadeh et al., 2018), and was felt by many people a radius of 200 km in eastern part of Iran....
Conference Paper
Full-text available
High frequency quality factors Qc, Qp & Qs have significant roll to study the simulation of the strong ground motion, seismic hazard analysis and seismic zoning. The 2017 April 5 Mw 6 Do Qaleh Fariman earthquake occurred southeast of the megacity of Mashhad, the center of Khorasan –e Razavi province, at the southern boundary of Kopeh-Dagh. Immediat...
Conference Paper
Full-text available
The dependence of the results of many seismic studies (e.g. seismic anisotropy, extracting Love wave from ambient noise data, measuring wave amplitude and receiver functions) to the accuracy of seismic sensor's orientation are experienced many times. Therefore, the misorientation correction of seismic data in such studies must be taken into account...
Conference Paper
Full-text available
Many researchers believed that the spectral ratio between horizontal and vertical components has been introduced by Nakamura for the first time in 1989. But, started from 1971 and based on the assumption that the noise wavefield is predominantly consists of surface waves, many authors expressed that the H/V ratio is related to the ellipticity of Ra...
Article
S-wave spectral amplitudes from 312 crustal earthquakes recorded at the Iranian National Broadband Seismic Network in the Alborz region between 2005 and 2017 are analysed in order to evaluate earthquake source parameters, path attenuation and site amplification functions using the non-parametric generalized inversion technique (GIT). We exploit a t...
Conference Paper
Full-text available
Recent Improvements on the Broadband Seismic Network of Iran (Implementing Tuned Seiscomp3 and Automatic Online Moment Tensor Inversion) By: Soltanimoghadam S. & Javan-Doloei G. Abstract: Iran plateau is known as one of the highest seismic active regions in the world. Therefore, it is very important to know quickly about the location and the sourc...
Article
R Amiri Fard, G Javan Doloei, H Rahimi, M Farrokhi, Attenuation of P and S waves in Western part of Iran, Geophysical Journal International, , ggz209, https://doi.org/10.1093/gji/ggz209
Article
Full-text available
Summary One of the most seismically active parts of Iran is Zagros area. The basement-involved active fold-thrust belt of the Zagros in southwest Iran is underlain by numerous seismogenic blind basements thrust covered by the folded Phanerozoic sedimentary rocks. The present morphology of the Zagros active fold-thrust belt is the result of its st...
Conference Paper
Full-text available
In this research, we describe a series of seismic observations including the foreshock sequence of preceding the 5 April 2017 M=6, SefidSang (Fariman, Iran) earthquake, Razavi Khorasan province. Existence of an earthquake seismic station (JRKH), eight kilometers from the epicenter of earthquake, provides the opportunity to explore the precursors ch...
Conference Paper
Full-text available
The crustal structure study based on ambient noise processing is become popular and reliable technique in seismology in recent years. In present study, we apply ambient noise analysis to image the crust and uppermost mantle shear velocity structure beneath south west of Tehran area. Data from all stations that have been employed in Alborz and centr...
Article
Peak ground acceleration (PGA) estimates have been calculated in order to predict the devastation potential resulting from earthquakes in reconstruction sites. In this research, a training algorithm based on gradient descent were developed and employed by using strong ground motion records. The Artificial Neural Networks (ANN) algorithm indicated...
Article
Full-text available
The crustal structure study based on ambient noise measurements has become a popular, fast and reliable method in earthquake seismology in recent years around the world. Generally, not only in seismology but also in other applications which deal with signals, accept noise as an undesired component of the signal. It is believed that noise obscures d...
Article
Full-text available
A nonparametric generalized inversion technique (GIT) has been used to derive attenuation characteristics, source parameters and site amplification effects from S wave spectra of the 2006 Silakhor earthquake aftershocks recorded at 10 temporary stations in the epicentral area of the main shock along the main recent fault in Zagros region. We apply...
Article
Full-text available
Peak ground acceleration is one of the most important factors that needs to be investigated in order to predict the devastation potential resulting from earthquakes in reconstruction sites. Besides, the maximum level of shaking control is subjected criteria that can be worth considering. In this research, a training algorithm based on gradient desc...
Conference Paper
Full-text available
Seismic monitoring is significant in structural lifeline care. The historical Veresk bridge is the most beautiful architecture in the world bridge design since 80 years ago. The structural health monitoring (SHM) of the Veresk bridge has been done with 24 broadband seismic sensors during October 2014. The maximum vertical displacement on the centra...
Conference Paper
Full-text available
Abstract: Naeen region is located in the central part of Iran as an ancient city north south of Isfahan. However, it is located among three fault systems but does not experiment large earthquakes since two hundred years ago. The tectonics complexity of this region needs more studies so that in this paper we have solved focal mechanisms based on tre...
Article
In this paper, the seismicity models in Karkheh and Karoun III dam sites before and after impounding are investigated. The results show that location of earthquake epicenters, focal depths and the other seismic parameters around the reservoirs, after filling of reservoir of dams were changed. Also, a good matching has seen between water level and e...
Article
Full-text available
The mixture of natural and artificial seismic sources with random distributions cause diffuse wave field with random amplitudes and phases called noise. When noise is analyzed in a long-term process, it contains surface waves which are spread in all directions. Thus, ambient noise contains data relevant to the surface waves. In recent years, as bro...
Article
Full-text available
Ambient Noise Processing as a Functional Tool for Seismic Velocity Earth's Structure Determination Gh. Javan-Doloei and R. Movaghari Abstract: In this article, we try to investigate the ambient noise characteristics based on amplitude, frequency content and its origin that were recorded on the broad band seismic stations. To do this, we reviewed t...
Article
This paper presents a method for automatic earthquake signal phase picking based on the continuous wavelet transform (CWT) of the seismogram, namely, the wavelet phase picker (WPP). A characteristic function is defined using the envelope function of CWT coefficients of the vertical component seismogram. The performance of the WPP method is evaluate...
Article
Full-text available
In the above paper (ibid., vol. 51, no. 5, pp. 2666-2674, May 2013), there is an error in equation (7) due to a typesetting error. The correct form of the equation is presented here.
Conference Paper
Full-text available
This research is devoted to application of integrated geophysical seismic methods in the investigation of Seymareh dam site which is located in 40km NW of Darehshahr city in Ilam Province. In this study a combination of shallow seismic refraction profiling and seismic tomography methods were applied. The goal of study is to determine the subsurface...
Article
Full-text available
Recently, studying anisotropic properties has become a proper procedure to survey rate of tectonics phenomena in upper crust and mantle. Therefore, analyzing specific phases of the wave that an earthquake produces, which is intensely sensitive to both earthquake mechanism and any anisotropy along the path at upper crust, is worthwhile. Researchers...
Article
Full-text available
There are several methods to determine the thickness of surface layer in the landslide areas. In this study, the seismic refraction method and geoelectrical method as well have been used.The advantages of these methods are high resolution and water saturated layer detection. The roll of water saturated layer in the slip range is subject to rapid dr...
Article
Full-text available
The seismic anisotropy is a subject of interest for seismologists and geologists. The information of seismic anisotropy has significant role in geology interpretations (Savage, 1999). In this study, we have investigated the upper crust anisotropy in Bam area by means of shear wave splitting Sg phase. We have selected more than three hundred aftersh...
Article
Full-text available
In this study, analysis is presented in two steps. In the first step, the theoretical S-wave displacement spectra, conditioned by frequency-independent Q, was fitted with the observed displacement spectra. Therefore corner frequency, moment magnitude and frequency-independent Q for each record were estimated simultaneously and the estimate of error...
Article
Full-text available
Earthquakes are continuously monitored by a global network of several thousand seismic stations equipped with highly sensitive digital seismometers. The Geological Survey of Denmark and Greenland (GEUS) takes part in it by operating five seismic stations in Denmark and 18 in Greenland, some of the latter in collaboration with international partners...
Article
Full-text available
Available online at: http://www.iiees.ac.ir/jsee In this paper, automatic detection and picking of the S-wave, in the problem of passive seismic monitoring has been studied, and a method is proposed for detecting S-phase onset time based on the eigenvalue analysis. By calculating eigenvalues of the time domain covariance matrix of the earthquake re...
Article
Historical studies and geologic investigations show that the Kahrizak fault located at the southern foot of the central Alborz Mountains poses a high seismic risk for the Tehran region. However, little is known about the geometry and mechanism of movement along this seismogenic fault. This paper uses three different geophysical methods namely, seis...
Article
Full-text available
The NW-SE trending Tus fault is one of the active faults in the north-east of Iran. Geomorphologic evidences indicate that this fault is active and goes through Mashhad city from near Tus town. Since the population and number of pilgrims in this city are high, the study of the Tus fault is of great importance. Hence, we have carried out a new inves...
Article
Full-text available
Characteristics of Seismicity in Silakhin Silakhor Brojerd Area Based on earthquakes of IIEES Temporary Seismic Net by T. Shahrabi & Javan-Doloei (in Persian) Abstract: Silakhor Brojerd Area is located between high Zagros Zone and Sanandaj-Sirjan zone and is one of the seismic area with high frequency of occurrence and medium magnitude and sometime...
Article
Body and surface waves have been produced with earthquake. So that regional seismic networks have been recorded all local events. Traveltime of body waves, between source and stations, to be used for crustal study and joint inversion modelling. Traveltimes of earthquakes between sources and stations in the north of Iran are used to develop P- and S...
Article
Full-text available
We simultaneously estimated Qp−1 and Qs−1 by applying the extended coda-normalization method at 39 stations of three local networks in the East-Central Iran. We measured frequency-dependent attenuation of both P and S waves for the frequency range of 1.5, 3.0, 6.0, 12 and 24 Hz. We have analysed 266 three-component seismograms of 53 local earthquak...
Article
Full-text available
‫ Abstract: Seismic wave velocity study of crust and upper mantel is a significant key to understand earth's structure. At some stage of past two decades, the seismic velocity of Zagros area has been studied. Results of previous studies are very important for identifying the seismic structure and authentic recent earthquake location in this active...
Article
Full-text available
‫ Abstract: Seismic wave velocity study of crust and upper mantel is a significant key to understand earth's structure. At some stage of past two decades, the seismic velocity of Zagros area has been studied. Results of previous studies are very important for identifying the seismic structure and authentic recent earthquake location in this active...
Article
Full-text available
Crustal Study in the West of Iran Based on Travel Time Curves of Local Earthquakes By: Z.S. Riazi Rad & G. Javan Doloei This study explores crustal velocity structure in the West of Iran. Wealth of data from recorded local earthquakes creates an opportunity to image crust and upper mantle in the region and then these data used for joint inversion...
Article
Full-text available
Design of digital geo-electrical equipment and its application on noise level reduction Javan-Doloei, Gh., Azadi, A. and Kamalian, N (Received: 3 Mar 2008 , Accepted: 23 Jun 2008) Abstract: Electrical resistivity survey is used to explore subsurface layers in hydrology, geology, mining, geotechnical and environmental investigations. The resistiv...
Article
Full-text available
According to the representation theorem, the elastic displacement due to a point source is given by the following equation: U(x,t) = S(t)* G(x,t;ξ,τ)* Mij(ξ,τ) (1) In this equation, U(x,t) is the component of the displacement, S(t) is the source time function which indicates how the energy is released during the earthquake process, G(x,t;ξ,τ), is t...
Article
Full-text available
The source parameters and focal depth of the destructive Mw 6.5, 31 March. 2006 Iran-Silakhor earthquake, the two largest foreshocks and a major aftershock are determined using broadband data from a seismic network in Iran based on a time-domain linear moment tensor inversion. The earthquakes occurred in the Zagros Suture zone in western Iran. Wave...
Article
Full-text available
SKS phase passes through the mantle as an S wave; it converts to a P wave at the core-mantle boundary (CMB) beneath the source, travels through the fluid outer core, and then converts back to an S wave at the CMB on the receiver side. When a shear wave (SKS) propagates through an anisotropic media, it is partitioned into orthogonally polarized fast...
Article
For the last three decades, determination of anisotropy has been a subject of interest for seismologists and geologists. Less well-known information of seismic anisotropy is available from mantle of Alborz Mountains as a branch of Alpine–Himalayan orogenic belt. In this study, we investigated the crust and upper mantle anisotropy by shear wave spli...
Article
Full-text available
Abstract: In this study, the frequency dependence of P and S waves attenuation are determined in terms of 1/Qp and 1/Qs in Mashhad area.
Article
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In this study, the crustal velocity structure and depth of Moho is determined under the eastern part of Iranian Kopeh Dagh, North-East Iran that is named Hezar-Masjed mountains. The teleseismic waveform receiver functions technique is used to determine crustal thicknesses in this study. 41 teleseismic earthquakes from three broad-band seismometers...