نتایج جستجو برای: strike direction

تعداد نتایج: 160264  

ژورنال: ژئوفیزیک ایران 2015
Hesaneh Mohammadi Mohammadreza Gheitanchi

On August 11, 2012,within several minutes, two shallow destructive earthquakes with moment magnitudes of 6.5 and 6.4 occurred in Varzagan, Azerbaijan-e-Sharghi Province, in the northwest of Iran In this study, the Empirical Green Function (EGF) method was used for strong ground motion simulationto estimate the source parameters and rupture characteristics of the earthquakes. To simulate the fir...

Journal: :Acta Geologica Sinica - English Edition 2019

According to numerous studies, there are basic and initial scaling relationship for the geometric and kinematic characteristics of faults. The study area is located in the northern part of the Kerman coal province. The statistical calculations are consisting of:  measure the surface density of faults per unite area and division of the area, determining the direction of the dominant faulting and...

B. Nourollahi, B. Rezayibana, S. Norozikalehsar,

Fling-step and forward directivity are two important characteristics of near-field earthquakes. Forward directivity occurs when the rupture propagates toward the site and arises in fault‐normal direction for strike‐slip faults. Fling-step is the consequence of permanent ground displacement imposed by near-field earthquakes and arises in strike-slip faults in the strike parallel direction. Fling...

ژورنال: فیزیک زمین و فضا 2018

One of the methodologies employed in gravimetry exploration is eigenvector analysis of Gravity Gradient Tensor (GGT) which yields a solution including an estimation of a causative body’s Center of Mass (COM), dimensionality and strike direction. The eigenvectors of GGT give very rewarding clues about COM and strike direction. Additionally, the relationships between its components provide a quan...

2016
Kazuki Koketsu Hiroe Miyake Yujia Guo Hiroaki Kobayashi Tetsu Masuda Srinagesh Davuluri Mukunda Bhattarai Lok Bijaya Adhikari Soma Nath Sapkota

The ground motion and damage caused by the 2015 Gorkha, Nepal earthquake can be characterized by their widespread distributions to the east. Evidence from strong ground motions, regional acceleration duration, and teleseismic waveforms indicate that rupture directivity contributed significantly to these distributions. This phenomenon has been thought to occur only if a strike-slip or dip-slip r...

Journal: :فیزیک زمین و فضا 0
منصوره منتهایی مؤسسه ژئوفیزیک دانشگاه تهران- دانشجوی دکتری هاینریش براسه دانشگاه برلین- استاد بهروز اسکویی مؤسسه ژئوفیزیک دانشگاه تهران- استادیار

the deep internal structure of the crust can be determined using appropriate seismic and electromagnetic methods. the natural source magnetotelluric (mt) method is the most suitable electromagnetic technique for probing into the deep crust. a long period magnetotelluric data set obtained in the southern chilean andes is investigated in this paper. dimensionality analysis shows that the data may...

2014

We used scaled experimental (analog) models with wet clay to investigate how conjugate sets of steeply dipping strike-slip faults affect deformation patterns during a subsequent phase of extension. In all twophase experiments, an initial phase of strike-slip deformation produces a long, wide deformation zone consisting of subvertical Riedel shears; synthetic R-shears and antithetic R'-shears tr...

Journal: :فیزیک زمین و فضا 0
بنفشه حبیبیان دهکردی دانشجوی دکتری ژئوفیزیک، گروه فیزیک زمین، مؤسسة ژئوفیزیک، دانشگاه تهران، ایران بهروز اسکویی استادیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک، دانشگاه تهران، ایران هاینریش براسه استاد، دانشکده علوم زمین، دانشگاه برلین، آلمان

the conductivity distribution across the trans-european suture zone (tesz) is presented based on the measurements along a 400 km northeastern directed profile, starting from the german-polish basin, crossing the tesz and ending at the east european craton. two-dimensional inversion was applied to magnetotelluric transfer functions and magnetovariational responses corresponding to 38 long-period...

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