Earthquake Spectra Showcase Webinar: February 2026 Issue Highlights

Value of the Information & Strength of the Argument

The webinar provides valuable insights into advanced seismic hazard analysis, particularly the one-step approach for incorporating site response. The presenters offer detailed explanations of their methodology, including the construction of velocity profiles, logic tree design, and handling of epistemic uncertainties. The argumentation is solid, supported by extensive site-specific data and comparisons with empirical observations. The presentation of the second paper on mHVSR is less detailed but still informative. Overall, the content is highly valuable for professionals in earthquake engineering and seismic hazard assessment.

Scientific Rigor, Source Quality, Title Accuracy

The webinar is based on peer-reviewed papers published in Earthquake Spectra, a reputable journal. The presenters are experts from academic and research institutions, and they reference their own work and related studies. The title accurately reflects the content, as it showcases papers from the February 2026 issue. The presentation is rigorous, with clear methodology and data presentation. However, as a webinar, it does not provide the full detail of the papers, but it offers a good overview. The sources cited are primarily the papers themselves and related publications.

The title accurately reflects the content: a webinar showcasing two papers from the February 2026 issue of Earthquake Spectra.

8/10

The webinar presents peer-reviewed research from Earthquake Spectra, with detailed methodology and data. Speakers are experts in the field. The content is technical and well-structured, though it is a presentation rather than a full paper.

Markers derived by PSI from the transcript: the creator did not define chapters.

• 02:00Introduction to EERI and webinar logistics
• 05:00Start of first presentation on host-to-target site response adjustments
• 10:00Discussion of Idaho National Laboratory site and geological conditions
• 15:00Explanation of logic tree approach for site response
• 20:00Details on velocity profile construction and interbed modeling
• 25:00Presentation of results and tornado plots for epistemic uncertainty
• 30:00Start of second presentation on mHVSR utilization
• 35:00Methodology and application of mHVSR for ground response analysis
• 40:00Discussion of results and implications
• 45:00Q&A session and concluding remarks

• Host-To-Target Site Response Adjustments for Site-Specific Probabilistic Seismic Hazard Analysis — Paper presented in the webinar, published in Earthquake Spectra February 2026 issue.
• Utilization of Spatially Distributed mHVSR to Assess the Effectiveness of Ground Response Analysis — Paper presented in the webinar, published in Earthquake Spectra February 2026 issue.
• Chiou & Youngs (2014) Ground Motion Model — Referenced as the host ground motion model used in the study.

• Host-To-Target Site Response Adjustments for Site-Specific Probabilistic Seismic Hazard Analysis — Paper presented in the webinar, published in Earthquake Spectra February 2026 issue.
• Utilization of Spatially Distributed mHVSR to Assess the Effectiveness of Ground Response Analysis — Paper presented in the webinar, published in Earthquake Spectra February 2026 issue.