Original article on UCLA Samueli

Sea Level Rise Impacts on Earthquake-Induced Soil Liquefaction

Scott Brandenberg, a professor of civil and environmental engineering, will serve as the principal investigator on the project with a two-year, $520,000 grant. Timu Gallien, an associate professor of civil and environmental engineering, will serve as a co-project investigator. As sea levels rise due to earthquakes, so do groundwater levels in coastal areas, resulting in increased risks of expanded liquefaction hazard zones. Earthquake liquefaction can cause major infrastructure damages and occurs when loosely packed, waterlogged soil near or at the ground surface beneath buildings and other structures loses its density and strength in response to strong ground shaking.

In collaboration with the California Geological Survey, the California Seismic Safety Commission, the California Office of Emergency Services and the U.S. Geological Survey; Brandenberg and Gallien will lead a research team to map liquefaction hazard severity in California by integrating groundwater modeling, sea level rise projections, geotechnical site investigation data, seismic hazard analysis and liquefaction analysis. Findings from the research will help predict areas in California that are prone to soil liquefaction, thereby enabling measures to reduce structural damage and save lives.

In addition to the two UCLA Samueli-led projects, Alvar Escriva-Bou — an assistant professor of civil and environmental engineering at UCLA Samueli — will contribute to a research project led by UC Berkeley. “Equitable Stewardship of California’s Water in a Changing Climate” aims to build an equitable and resilient water system. The team plans to leverage existing models used to operate California’s major water supply systems to produce a novel library of climate scenarios for sustainable water system operations, democratizing water allocation information in the process.

The California Climate Action grants are part of $185 million allocated by the state of California to support University of California (UC) climate initiatives designed to help advance the state’s climate goals. Totaling $83 million, the grants will fund 38 projects involving more than 130 community, industry, tribal and public agencies, as well as 12 UC locations, 11 California State University campuses and two private universities. Five projects will be led by UCLA — two spearheaded by UCLA Samueli, two by faculty members of the UCLA Fielding School of Public Health and one by the UCLA Labor Occupational Safety and Health Program.

Link to the original article entitled “UCLA Engineering Awarded $1.5 Million State-Funded Grants from UC to Spur Climate Action” on the UCLA Samueli website: https://samueli.ucla.edu/ucla-engineering-awarded-1-5-million-state-funded-grants-from-uc-to-spur-climate-action/