Impacts of simulated M9 Cascadia Subduction Zone earthquakes considering amplifications due to the Georgia sedimentary basin on reinforced concrete shear wall buildings

Fri, 30 Oct 2020 00:00:00 +0000

Georgia Basin Amplification Factors for M9 Cascadia Earthquakes

Sat, 01 Jun 2019 00:00:00 +0000

This project quantifies long-period spectral acceleration amplification due to the Georgia sedimentary basin in Metro Vancouver.

Using a suite of 30 broadband simulations of M9 Cascadia Subduction Zone earthquakes, we benchmark ground motions against national models and derive period-dependent basin amplification factors (BAFs). These factors are validated using empirical data from the 2001 Nisqually earthquake and used to propose a framework for modifying Uniform Hazard Spectra (UHS) to better reflect the amplification effects.

The findings have implications for seismic hazard mapping, performance-based design, and future editions of the National Building Code of Canada.

📖 Journal Article

🎤 Conference Presentation

👥 Collaborators

Carlos Molina Hutt
Sai Mithra Dyaga
Hadi Ghofrani
Sheri Molnar

Basin Amplification | preetish kakoty

Impacts of simulated M9 Cascadia Subduction Zone earthquakes considering amplifications due to the Georgia sedimentary basin on reinforced concrete shear wall buildings

Georgia Basin Amplification Factors for M9 Cascadia Earthquakes

📰 Related Publication

📖 Journal Article

🎤 Conference Presentation

👥 Collaborators