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March 12, 2026Earthquake Spectra

Host‐To‐Target Site Response Adjustments for Site‐Specific Probabilistic Seismic Hazard Analysis

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Authors

AKAlbert KottkeJKJames KaklamanosARAdrian Rodriguez‐Marek

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Overview

Analysis demonstrates site-specific adjustments in seismic hazard calculations, indicating improved accuracy in assessments.

Key Points

  • This research aims to enhance the accuracy of seismic hazard assessments by incorporating local site effects in probabilistic seismic hazard analysis.
  • Conducted site-specific probabilistic seismic hazard analysis at Idaho National Laboratory.
  • Utilized host-to-target site response adjustment for seismic hazard calculations.
  • Employed a logic-tree approach to capture epistemic uncertainty in site adjustment factors.
  • Incorporated borehole and noninvasive shear-wave velocity measurements alongside local earthquake recordings.
  • Improved accuracy in site-specific seismic hazard assessments through local site effect incorporation.
  • Successfully illustrated a single-step adjustment method for host reference rock profiles.
  • Enhanced reliability of adjustment factors by addressing full epistemic uncertainty, beyond near-surface shear-wave velocity.

Cite This Study

Kottke et al. (2026) studied this question.

synapsesocial.com/papers/69b257ec96eeacc4fcec7074https://doi.org/10.1002/esp4.70046
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