Application of sequential Gaussian simulation to quantify the surface wave magnitude uncertainty within the faulted regions

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• 作者：Amir Barzegari (1)
  Nasser Madani Esfahani (2)
  Omid Asghari (3)
  
• 关键词：Fault ; Fault trace ; Direct rupture ; Surface wave magnitude ; Talgah Bridge ; Geostatistical simulation ; Uncertainty map
• 刊名：Arabian Journal of Geosciences
• 出版年：2014
• 出版时间：August 2014
• 年：2014
• 卷：7
• 期：8
• 页码：2991-3010
• 全文大小：5,423 KB
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• 作者单位：Amir Barzegari (1)
  Nasser Madani Esfahani (2)
  Omid Asghari (3)
  
  1. Young Researchers Club, Tehran North Branch, Islamic Azad University, Tehran, Iran
  2. Department of Mining Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran
  3. Department of Mining Engineering, University of Tehran, Tehran, Iran
  
• ISSN：1866-7538

文摘

Geostatistical simulations have been recently widely used in the geological and mining investigations. Variogram, the fundamental tools of geostatistics, can identify the spatial distribution of the regionalized variable within the area. One of the important issues of geostatistical simulation in seismotectonics is producing uncertainty maps, which could be applicable to predict earthquake parameters through the site locations especially for civil structures like bridges. It can help engineers to design the structure of interest better. Earthquake parameters as for example seismic fault and surface wave magnitude (Ms) have significant impact on the feasibility study of the civil structures. In this research, a method is presented to produce uncertainty maps for seismic fault and surface wave magnitude, Ms. For this aim, information related to surface wave magnitude and fault trace in Zagros region (SW of Iran) has been collected. Then, the relationships between them through the site location have been investigated and analyzed by conditional geostatistical simulation. In order to quantify the uncertainty of each parameter, the uncertainty formula after generating the E-type maps has been provided and discussed. Finally, in “Talgah Bridge-site, these uncertainty maps were produced to interpret the impact of the surface wave magnitude and fault trace in this specific civil structure.