Session: Problem Unsolved: Knowledge Gaps at the Intersection of Earthquake Engineering Practice and Research [Poster]
Type: Poster
Date: 4/26/2019
Time: 06:00 PM
Room: Grand Ballroom
A New Model Database for Next-Generation Fault Displacement Hazard Analysis
Recent technological advances, such as lidar and optical imagery correlation, have facilitated dense, high-resolution datasets that measure both “on-fault” and “off-fault” displacements (i.e., discrete brittle slip and distributed inelastic strain, respectively) in surface-rupturing earthquakes. These datasets are a substantial improvement over older datasets that typically contain irregularly-spaced measurement locations, relatively few data points, and lack measurements off the primary rupture. Currently available fault displacement databases (e.g., Wells and Coppersmith, 1994; Wesnousky, 2008) are comprised of vintage datasets that serve as the basis for Probabilistic Fault Displacement Hazard Analysis (PFDHA) models (e.g., Youngs et al., 2003; Petersen et al., 2011; Lavrentiadis and Abrahamson, in prep.). The development of next-generation fault displacement models requires a modern database that can accommodate both vintage data and newer datasets. Toward this end, we are developing a structured relational database for fault displacements, modeled after the Next Generation Liquefaction (Brandenberg et al., 2018) and the Next Generation Attenuation Subduction databases (Mazzoni et al., in prep.). A relational database is ideal for compiling fault displacements because of the broad range of measurement types (e.g., horizontal throw vs. horizontal slip; on-fault vs. off-fault) in the published literature. These dataset-specific attributes are easily retained in a relational database. A relational database can also accommodate new data that may become available in future studies (e.g., displacement profiles in addition to point observations) as well as site-specific metadata (geology, groundwater depth, topography, etc.). Our database currently includes earthquake metadata, point displacement measurements, mapped surface ruptures, and geologic metadata. The compilation is anticipated to include about 30-40 earthquakes and can be used in new models to better constrain the amplitude and spatial distribution of both on-fault and off-fault deformation.
Presenting Author: Alexandra Sarmiento
Additional Authors
Alexandra Sarmiento sarmiento.alexandrac@gmail.com University of California, Los Angeles, Los Angeles, California, United States Presenting Author
Corresponding Author
|
Norman Abrahamson abrahamson@berkeley.edu University of California, Berkeley, Berkeley, California, United States |
Stéphane Baize stephane.baize@irsn.fr Institut de Radioprotection et de Sûreté Nucléaire, Fontenay-aux-Roses, , France |
Yousef Bozorgnia yousef.bozorgnia@ucla.edu University of California, Los Angeles, Los Angeles, California, United States |
Rui Chen rui.chen@conservation.ca.gov California Geological Survey, Sacramento, California, United States |
Kevin J Coppersmith kcoppersmith@earthlink.net Coppersmith Consulting, Inc., Walnut Creek, California, United States |
Timothy E Dawson timothy.dawson@conservation.ca.gov California Geological Survey, San Mateo, California, United States |
Jennifer L Donahue jennifer@jldengineering.com JL Donahue Engineering, Inc., Kentfield, California, United States |
Vince Jacob vince@scsolutions.com SC Solutions, Sunnyvale, California, United States |
Mehrshad Ketabdar mketabdar@semprautilities.com Southern California Gas Company, Covina, California, United States |
Albert R Kottke arkk@pge.com Pacific Gas and Electric Company, San Francisco, California, United States |
Nicolas M Kuehn kuehn@g.ucla.edu University of California, Los Angeles, Los Angeles, California, United States |
Grigorios Lavrentiadis glavrent@berkeley.edu University of California, Berkeley, Berkeley, California, United States |
Chris Madugo c7m0@pge.com Pacific Gas and Electric Company, San Francisco, California, United States |
Silvia Mazzoni silviamazzoni@yahoo.com University of California, Los Angeles, Los Angeles, California, United States |
Christopher W D Milliner christopher.milliner@jpl.nasa.gov Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, United States |
Anoosh Shamsaabadi anoosh.shamsabadi@dot.ca.gov California Department of Transportation, Sacramento, California, United States |
Tom Shantz tom_shantz@dot.ca.gov California Department of Transportation, Sacramento, California, United States |
Andi Shen shenandi@ucla.edu University of California, Los Angeles, Los Angeles, California, United States |
Stephen C Thompson thompson@lettisci.com Lettis Consultants International, Walnut Creek, California, United States |
Robert R Youngs bob.youngs@woodplc.com John Wood Group PLC, Oakland, California, United States |
A New Model Database for Next-Generation Fault Displacement Hazard Analysis
Category
Problem Unsolved: Knowledge Gaps at the Intersection of Earthquake Engineering Practice and Research