UCLA Online Workshop on Directivity-Based Probabilistic Seismic Hazard for California
/
The UCLA Natural Hazards, Risk, and Resiliency Research Center (NHR3) will host an online workshop to present the Directivity-Based Probabilistic Seismic Hazard Analysis (PSHA) results for California on Thursday, February 23, 2023 from 10:00am to 11:30am PT.
An independent state-wide probabilistic seismic hazard analysis was conducted for California with and without current directivity models using UCERF3 as the seismic source. A total of 19,316 sites were used in the seismic hazard analysis. At each site, PSHA was conducted for multiple Vs30 values (ranging from 180m/s to 1100m/s), as well as the estimated site-specific Vs30 values. The results of this study have been processed, combined, and are available for public access.
A set of interactive tools has been developed. The Directivity-Based PSHA Interactive Tool interpolates the state-wide PSHA results to provide uniform-hazard spectra with and without directivity, as well as for the directivity adjustment factors, at a user-specified location, Vs30, and return period.
The project will be introduced by the Principal Investigator of the project, Prof. Yousef Bozorgnia, and the methodology and results of the study will be presented by Dr. Linda Al Atik, Dr. Nick Gregor and Dr. Silvia Mazzoni.
Please register (free of charge) below:
