Mehdi Zare - Academia.edu (original) (raw)
Papers by Mehdi Zare
International Symposium on Algorithms and Computation, Apr 28, 2013
Iranian Journal of Earth Sciences, Apr 1, 2020
فصلنامه علمی علوم زمین, Feb 20, 2015
Journal of Geodynamics, 2017
JOURNAL OF THE EARTH, 2009
Although strong ground motion networks are expanding, near-source strong motion recordings are st... more Although strong ground motion networks are expanding, near-source strong motion recordings are still sparse. In this article it is planned to characterize the level and variability of strong ground motion in near field of large earthquakes due to source effects. We have developed a stochastic rupture model that characterizes the variability and spatial complexity of slip as observed in past earthquakes. We model slip heterogeneity on the fault plane as a spatial random field for 21 near source earthquakes. The data follows a von ...
Journal of Seismology and Earthquake Engineering, Aug 24, 2011
Iranian strong motion data are studied to find the spectral demand ordinates of the selected reco... more Iranian strong motion data are studied to find the spectral demand ordinates of the selected records having better signal to noise ratios. The capacity spectrum method is used in this study and the spectral demand curves are estimated for 89 records. The records having low signal to noise ratio in the frequency range of less than 0.3 Hz are excluded, and the rest of records with appropriate quality in long periods and a PGA (at least for one of the three-components) greater than 50cm/sec2 are processed and analyzed. The site ...
ISPRS international journal of geo-information, Jul 9, 2020
فصلنامه علمی-پژوهشی علوم زمین, Jun 1, 2015
International Symposium on Algorithms and Computation, Apr 28, 2013
TURKISH JOURNAL OF EARTH SCIENCES, 2015
JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), Sep 1, 2009
Natural hazards are among destructive agents that annually take thousands of lives and impose dev... more Natural hazards are among destructive agents that annually take thousands of lives and impose devastating damages in Iran. Spotting such a high risk areas can help reducing the amount of their probable risk. A 1: 500000 liquefaction and landslide hazard zonation map developed for the southern shoreline of the Caspian Sea. This geotechnical hazard map divides the study area to 15 hazard classes (five and three hazard classes for liquefaction and landslide respectively). Removing negative factors affects the landslide hazard map, ...
Nexo Revista Científica, 2020
The management of natural disasters requires understanding their essence, making accurate assessm... more The management of natural disasters requires understanding their essence, making accurate assessments, planning, and providing appropriate solutions. The purpose of this study is to evaluate the physical resilience of the 22 neighborhoods of Babol located in the north of Iran against earthquakes. The methodology of this applied research study is descriptive-analytical. In this regard, by initially studying similar national and international studies, using the expert opinion of seismology and urban planning specialists and interviewing experienced urban managers in the field of crisis management, 30 effective indices on physical resilience against earthquake risk were extracted. Then, using analytic functions of GIS software and multi-criteria models including AHP, TOPSIS, VIKOR and COPRAS, the physical resilience of Babol against earthquakes was evaluated. Then, in order to obtain accurate results, using the integration models including the Statistic, BORDA and COPELAND, the physical resilience of Babol's 22 neighborhoods was evaluated. The analysis of the final GIS maps shows that neighborhoods 2, 3, 4, 5, and 11 have very high physical resilience and neighborhoods 6, 8, 10, 12 and 14 have very low physical resilience against earthquakes.
Preliminary report of Mw7.3 Sarpol-e Zahab, Iran earthquake on November 12, 2017
around the city of Bam in the southeast of Iran. The Bam earthquake of 26/12/2003 (Mw6.5) has dem... more around the city of Bam in the southeast of Iran. The Bam earthquake of 26/12/2003 (Mw6.5) has demolished the city of Bam, having a population of about 100000 at the time of the earthquake. The Bam fault- which was mapped before the event on the geological maps- has been reactivated during the 26/12/2003 earthquake. It seems that a length of about 10km (at the surface) of this fault has been reactivated, where it passed exactly from the east of the city of Bam. The fault has a slop towards the west and the foci of the event was located closed to the residential area (almost beneath the city of Bam). This caused a great damage in the macroseismic epicentral zone; however the strong motions have been attenuated very rapidly, specially towards the east-and west (fault normal) direction. The vertical directivity effects caused the amplification of the low frequency motions in the fault-normal direction as well as the greater amplitude of the motion on the vertical direction.
Petrography and palynology of Late Oligocene and Middle Miocene coals in the
ُذیکچ ُسزل راًَ لبعف کیًَتکت ِقرٍ يیث ییازگوّ سزه رد ِک تسا ُداد لکض ار ىازیا تلاف بیلبویّ ـ خلآ ... more ُذیکچ ُسزل راًَ لبعف کیًَتکت ِقرٍ يیث ییازگوّ سزه رد ِک تسا ُداد لکض ار ىازیا تلاف بیلبویّ ـ خلآ شیخ يیهس یبّ بیسارٍا یتخبس ـ ُسزل سا یکی تلاف يیا .دراد رازق ىبتسثزع يیهس بث لبس زّ ٍ تسا ىبْج یحاًَ يیزتشیخ ُسزل یه ِجاَه یدذعته یبّ رد .دَض يیهس لبعف طیازض ،ىازیا لسگ دَجٍ ،یتخبس ِوطچ ٍ بّ ُسزل یبّ ذعتسه یحاًَ رد ىاٍازف تیعوج یزیگرازق ٍ دذعته یاس يیهس بس يیا ِث صید سا صیث ِجَت ُسزل ِحً ی ٌِیهس رد ار یولع تبعلبطه مٍشل ٍ یعیجط ی يیهس زطخ لیلحت یه صیاشفا ُسزل .ذّد ِلبقه رد ی ُسزل رٍزه زث ٍُلاع ،زضبح يیهس ُسزل ٍ تخبس ِلئسه ِث تسا ُذض یعس ،ىٌَکبت ِتضذگ سا ىازیا یشیخ ی زطخ لیلحت يیهس تیسآ ،ِحًبس تیزیذه تیعضٍ ِث ٍ ِتخادزد ُسزل تفبث ٍ یزیذد .دَض ُربضا ىازیا رد ُدَسزف
Considering seismicity and earthquake hazard is important in a high seismic area. Studying the af... more Considering seismicity and earthquake hazard is important in a high seismic area. Studying the aftershocks is important from different aspects; for instance, the impact of aftershocks on the structures damaged in the earthquake from the one hand, and the disturbance caused in the rescue process from the other hand (Hough & Jones, 1997). The importance of study the distribution of aftershocks can be used to estimate the amount of energy release in most seismic zones, the seismic zones, length of the activate faults and the process of migration of aftershocks (Ogata & Shimazaki, 1984). The main purpose of this study is to study the probability for strong aftershocks or larger mainshocks for Kermanshah zone using the Reasenberg-Jones relation (Reasenberg & Jones, 1989). To this end, the catalogue of the Kermanshah earthquakes between 2017/11/12 and 2019/03/16 has been collected and homogenized among which five earthquakes have been selected to study their aftershock decay rates. Catalo...
Journal of Seismology and Earthquake Engineering, 2017
This is a state-of-the-art paper on the seismic hazard zoning studies performed in Iran since the... more This is a state-of-the-art paper on the seismic hazard zoning studies performed in Iran since the mid-1970s to 2015. Reliable seismic hazard studies depend on having a robust earthquake catalog, good knowledge of tectonic conditions and relevant attenuation models applied for the hazard calculations. The better input for hazard analysis results in the more reliable parameters and seismic hazard assessments. The first generations of seismic hazard zoning maps in Iran were developed based on the deterministic approaches for calculation of maximum intensities (e.g. [1] and [2]). In 1982, Bozorgnia and Mohajer-Ashjai [3] published the first comprehensive probabilistic hazard assessment for major cities of Iran. The first PGAzoningmap for the greater Tehran region was also published by Berberian et al. [4]. The next generations of seismic hazard zoning studies were carried out for dam sites, which were under construction during the 1980s and 1990s in Iran. A seismic hazard zoning map of ...
International Symposium on Algorithms and Computation, Apr 28, 2013
Iranian Journal of Earth Sciences, Apr 1, 2020
فصلنامه علمی علوم زمین, Feb 20, 2015
Journal of Geodynamics, 2017
JOURNAL OF THE EARTH, 2009
Although strong ground motion networks are expanding, near-source strong motion recordings are st... more Although strong ground motion networks are expanding, near-source strong motion recordings are still sparse. In this article it is planned to characterize the level and variability of strong ground motion in near field of large earthquakes due to source effects. We have developed a stochastic rupture model that characterizes the variability and spatial complexity of slip as observed in past earthquakes. We model slip heterogeneity on the fault plane as a spatial random field for 21 near source earthquakes. The data follows a von ...
Journal of Seismology and Earthquake Engineering, Aug 24, 2011
Iranian strong motion data are studied to find the spectral demand ordinates of the selected reco... more Iranian strong motion data are studied to find the spectral demand ordinates of the selected records having better signal to noise ratios. The capacity spectrum method is used in this study and the spectral demand curves are estimated for 89 records. The records having low signal to noise ratio in the frequency range of less than 0.3 Hz are excluded, and the rest of records with appropriate quality in long periods and a PGA (at least for one of the three-components) greater than 50cm/sec2 are processed and analyzed. The site ...
ISPRS international journal of geo-information, Jul 9, 2020
فصلنامه علمی-پژوهشی علوم زمین, Jun 1, 2015
International Symposium on Algorithms and Computation, Apr 28, 2013
TURKISH JOURNAL OF EARTH SCIENCES, 2015
JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), Sep 1, 2009
Natural hazards are among destructive agents that annually take thousands of lives and impose dev... more Natural hazards are among destructive agents that annually take thousands of lives and impose devastating damages in Iran. Spotting such a high risk areas can help reducing the amount of their probable risk. A 1: 500000 liquefaction and landslide hazard zonation map developed for the southern shoreline of the Caspian Sea. This geotechnical hazard map divides the study area to 15 hazard classes (five and three hazard classes for liquefaction and landslide respectively). Removing negative factors affects the landslide hazard map, ...
Nexo Revista Científica, 2020
The management of natural disasters requires understanding their essence, making accurate assessm... more The management of natural disasters requires understanding their essence, making accurate assessments, planning, and providing appropriate solutions. The purpose of this study is to evaluate the physical resilience of the 22 neighborhoods of Babol located in the north of Iran against earthquakes. The methodology of this applied research study is descriptive-analytical. In this regard, by initially studying similar national and international studies, using the expert opinion of seismology and urban planning specialists and interviewing experienced urban managers in the field of crisis management, 30 effective indices on physical resilience against earthquake risk were extracted. Then, using analytic functions of GIS software and multi-criteria models including AHP, TOPSIS, VIKOR and COPRAS, the physical resilience of Babol against earthquakes was evaluated. Then, in order to obtain accurate results, using the integration models including the Statistic, BORDA and COPELAND, the physical resilience of Babol's 22 neighborhoods was evaluated. The analysis of the final GIS maps shows that neighborhoods 2, 3, 4, 5, and 11 have very high physical resilience and neighborhoods 6, 8, 10, 12 and 14 have very low physical resilience against earthquakes.
Preliminary report of Mw7.3 Sarpol-e Zahab, Iran earthquake on November 12, 2017
around the city of Bam in the southeast of Iran. The Bam earthquake of 26/12/2003 (Mw6.5) has dem... more around the city of Bam in the southeast of Iran. The Bam earthquake of 26/12/2003 (Mw6.5) has demolished the city of Bam, having a population of about 100000 at the time of the earthquake. The Bam fault- which was mapped before the event on the geological maps- has been reactivated during the 26/12/2003 earthquake. It seems that a length of about 10km (at the surface) of this fault has been reactivated, where it passed exactly from the east of the city of Bam. The fault has a slop towards the west and the foci of the event was located closed to the residential area (almost beneath the city of Bam). This caused a great damage in the macroseismic epicentral zone; however the strong motions have been attenuated very rapidly, specially towards the east-and west (fault normal) direction. The vertical directivity effects caused the amplification of the low frequency motions in the fault-normal direction as well as the greater amplitude of the motion on the vertical direction.
Petrography and palynology of Late Oligocene and Middle Miocene coals in the
ُذیکچ ُسزل راًَ لبعف کیًَتکت ِقرٍ يیث ییازگوّ سزه رد ِک تسا ُداد لکض ار ىازیا تلاف بیلبویّ ـ خلآ ... more ُذیکچ ُسزل راًَ لبعف کیًَتکت ِقرٍ يیث ییازگوّ سزه رد ِک تسا ُداد لکض ار ىازیا تلاف بیلبویّ ـ خلآ شیخ يیهس یبّ بیسارٍا یتخبس ـ ُسزل سا یکی تلاف يیا .دراد رازق ىبتسثزع يیهس بث لبس زّ ٍ تسا ىبْج یحاًَ يیزتشیخ ُسزل یه ِجاَه یدذعته یبّ رد .دَض يیهس لبعف طیازض ،ىازیا لسگ دَجٍ ،یتخبس ِوطچ ٍ بّ ُسزل یبّ ذعتسه یحاًَ رد ىاٍازف تیعوج یزیگرازق ٍ دذعته یاس يیهس بس يیا ِث صید سا صیث ِجَت ُسزل ِحً ی ٌِیهس رد ار یولع تبعلبطه مٍشل ٍ یعیجط ی يیهس زطخ لیلحت یه صیاشفا ُسزل .ذّد ِلبقه رد ی ُسزل رٍزه زث ٍُلاع ،زضبح يیهس ُسزل ٍ تخبس ِلئسه ِث تسا ُذض یعس ،ىٌَکبت ِتضذگ سا ىازیا یشیخ ی زطخ لیلحت يیهس تیسآ ،ِحًبس تیزیذه تیعضٍ ِث ٍ ِتخادزد ُسزل تفبث ٍ یزیذد .دَض ُربضا ىازیا رد ُدَسزف
Considering seismicity and earthquake hazard is important in a high seismic area. Studying the af... more Considering seismicity and earthquake hazard is important in a high seismic area. Studying the aftershocks is important from different aspects; for instance, the impact of aftershocks on the structures damaged in the earthquake from the one hand, and the disturbance caused in the rescue process from the other hand (Hough & Jones, 1997). The importance of study the distribution of aftershocks can be used to estimate the amount of energy release in most seismic zones, the seismic zones, length of the activate faults and the process of migration of aftershocks (Ogata & Shimazaki, 1984). The main purpose of this study is to study the probability for strong aftershocks or larger mainshocks for Kermanshah zone using the Reasenberg-Jones relation (Reasenberg & Jones, 1989). To this end, the catalogue of the Kermanshah earthquakes between 2017/11/12 and 2019/03/16 has been collected and homogenized among which five earthquakes have been selected to study their aftershock decay rates. Catalo...
Journal of Seismology and Earthquake Engineering, 2017
This is a state-of-the-art paper on the seismic hazard zoning studies performed in Iran since the... more This is a state-of-the-art paper on the seismic hazard zoning studies performed in Iran since the mid-1970s to 2015. Reliable seismic hazard studies depend on having a robust earthquake catalog, good knowledge of tectonic conditions and relevant attenuation models applied for the hazard calculations. The better input for hazard analysis results in the more reliable parameters and seismic hazard assessments. The first generations of seismic hazard zoning maps in Iran were developed based on the deterministic approaches for calculation of maximum intensities (e.g. [1] and [2]). In 1982, Bozorgnia and Mohajer-Ashjai [3] published the first comprehensive probabilistic hazard assessment for major cities of Iran. The first PGAzoningmap for the greater Tehran region was also published by Berberian et al. [4]. The next generations of seismic hazard zoning studies were carried out for dam sites, which were under construction during the 1980s and 1990s in Iran. A seismic hazard zoning map of ...