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<p>Seismic hazard analysis is essential for developing structures that can survive ground shaking and for well-informed urban planning because earthquakes pose serious dangers to infrastructure and human life. Because of its complicated tectonic setting, Northeast India is extremely vulnerable to seismic activity. As such, seismic hazard analysis is crucial for reducing the danger of earthquakes and guaranteeing the security of communities and infrastructure. In this susceptible area, knowing these risks aids in bettering urban planning and earthquake-resistant design. With an emphasis on Tripura, the present study incorporates a trapezoidal neutrosophic-based decision-making approach into the examination of seismic hazards in Northeast India. By merging trapezoidal fuzzy FUCOM and neutrosophic-TOPSIS under SVNF, the methodology overcomes the shortcomings of traditional seismic hazard methodologies, like subjective GMPE weighting, lacking consideration of uncertainities in magnitude, distance, tectonic settings and site conditions, especially in choosing and weighting ground motion prediction equations. To provide a thorough hazard assessment, this hybrid paradigm takes into account important elements including magnitude scaling, distance attenuation, tectonic setting and site circumstances. Peak ground acceleration values as high as 0.69&#xa0;g were found using seismic and tectonic data across a 300 km radius of Tripura considering different magnitude scales. Using seismic and tectonic data within a 300 km radius of Tripura and considering different magnitude scales, peak ground acceleration (PGA) values were found to range from 0.21 to 0.69 g using moment magnitude (Mw) and from 0.209 to 0.648 g using generalized moment magnitude (Mwg); these values, particularly in the southwestern region, are substantially higher than the 0.36 g PGA specified by the IS 1893-Part 1 (2002) standard, indicating a potential underestimation of seismic hazard in the current code.</p>

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An integrated trapezoidal neutrosophic-based decision-making approach and its application to seismic hazard analysis

  • 期刊论文

  • 发表日期：

    2025年8月23日

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  • Avik Paul,
  • Sima Ghosh,
  • Priyanka Majumder

摘要

Seismic hazard analysis is essential for developing structures that can survive ground shaking and for well-informed urban planning because earthquakes pose serious dangers to infrastructure and human life. Because of its complicated tectonic setting, Northeast India is extremely vulnerable to seismic activity. As such, seismic hazard analysis is crucial for reducing the danger of earthquakes and guaranteeing the security of communities and infrastructure. In this susceptible area, knowing these risks aids in bettering urban planning and earthquake-resistant design. With an emphasis on Tripura, the present study incorporates a trapezoidal neutrosophic-based decision-making approach into the examination of seismic hazards in Northeast India. By merging trapezoidal fuzzy FUCOM and neutrosophic-TOPSIS under SVNF, the methodology overcomes the shortcomings of traditional seismic hazard methodologies, like subjective GMPE weighting, lacking consideration of uncertainities in magnitude, distance, tectonic settings and site conditions, especially in choosing and weighting ground motion prediction equations. To provide a thorough hazard assessment, this hybrid paradigm takes into account important elements including magnitude scaling, distance attenuation, tectonic setting and site circumstances. Peak ground acceleration values as high as 0.69 g were found using seismic and tectonic data across a 300 km radius of Tripura considering different magnitude scales. Using seismic and tectonic data within a 300 km radius of Tripura and considering different magnitude scales, peak ground acceleration (PGA) values were found to range from 0.21 to 0.69 g using moment magnitude (Mw) and from 0.209 to 0.648 g using generalized moment magnitude (Mwg); these values, particularly in the southwestern region, are substantially higher than the 0.36 g PGA specified by the IS 1893-Part 1 (2002) standard, indicating a potential underestimation of seismic hazard in the current code.