کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8915825 1641743 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Neo-deterministic seismic hazard assessment for Alborz Region, Iran
ترجمه فارسی عنوان
ارزیابی خطر لرزه ای غیر قطعی منطقه ای البرز، ایران
کلمات کلیدی
منطقه البرز، ایران، متدولوژی غیر قطعی، ارزیابی خطر لرزه،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Seismic hazard maps for Alborz region (north of Iran) and adjacent areas are prepared using the neo-deterministic seismic hazard assessment (NDSHA) based on the computation of synthetic seismograms at the regional scale. The study area is zoned according to different geophysical structural models delimited at the surface by polygons, used to define the mechanical properties of the source-site paths. We have refined the velocity structures of Iran, as obtained from surface waves tomography, to obtain the velocity structure of Alborz region by applying the joint inversion of the P-wave receiver functions (PRF) and surface wave's dispersion. The input data set consists of attenuation-velocity structural models (representing bedrock conditions), seismogenic zones, focal mechanisms and the catalog of past seismicity. The seismic hazard, expressed in terms of maximum displacement (PGD), maximum velocity (PGV) and design ground acceleration (DGA), is extracted from the synthetic seismograms and mapped on a regular grid of 0.2° × 0.2° over the entire region. The results of this first order NDSHA zoning indicate a high seismic hazard in the Alborz region and may represent an important knowledge basis towards detailed and comprehensive seismic microzonation studies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Geology - Volume 242, 14 August 2018, Pages 70-80
نویسندگان
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