Southern California Earthquake Center: Research Program in Earthquake System Science, 2017-2022

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项目编号	1600087
	Southern California Earthquake Center: Research Program in Earthquake System Science, 2017-2022
	John Vidale
主持机构	University of Southern California
项目开始年	2017
	2017-05-01
项目结束日期	2022-04-30
资助机构	US-NSF
项目类别	Cooperative Agreement
项目经费	2923365(USD)
国家	美国
语种	英语
英文摘要	This cooperative agreement funds the Southern California Earthquake Center (SCEC) for the 5-year period from 1 Feb 2017 to 31 Jan 2022 (SCEC5). The Center is a large consortium of institutions with a national, and increasingly worldwide, distribution. Currently, over 1000 earthquake professionals are participating in SCEC projects. This research program is investigator-driven and supports core research and education in seismology, tectonic geodesy, earthquake geology, and computational science. The SCEC community advances earthquake system science by gathering information from seismic and geodetic sensors, geologic field observations, and laboratory experiments; synthesizing knowledge of earthquake phenomena through system-level, physics-based modeling; and communicating understanding of seismic hazards to reduce earthquake risk and promote community resilience. Southern California is data-rich and, with an urbanized population exceeding 20 million, comprises the lion's share of national earthquake risk. Recent research has posed crucial questions about the current earthquake hazard of the San Andre-as fault system. The strategic framework for the SCEC5 Science Plan has been cast in the form of five basic questions of earthquake science: (1) How are faults loaded on different temporal and spatial scales? (2) What is the role of off-fault inelastic deformation on strain accumulation, dynamic rupture, and radiated seismic energy? (3) How do the evolving structure, composition and physical properties of fault zones and surrounding rock affect shear resistance to seismic and aseismic slip? (4) How do strong ground motions depend on the complexities and nonlinearities of dynamic earthquake systems? (5) In what ways can system-specific studies enhance the general understanding of earthquake predictability? These questions cover the key issues driving earthquake research in California, and they provide a basis for gauging the intellectual merit of proposed SCEC5 research activities. SCEC's long-range science vision is to develop dynamical models of earthquake processes that are comprehensive, integrative, verified, predictive, and validated against observations. The science goal of the SCEC5 core program is to provide new concepts that can improve the predictability of the earth-quake system models, new data for testing the models, and a better understanding of model uncertain-ties. SCEC validation efforts tightly couple basic earthquake research to the practical needs of probabilistic seismic hazard analysis, operational earthquake forecasting, earthquake early warning, and rapid earthquake response. Moreover, the risk-reduction problem?which requires actions motivated by useful information?strongly couples SCEC science to earthquake engineering. SCEC collaborations with engineering organizations are directed towards end-to-end, physics-based modeling capabilities that span system processes from ?ruptures-to-rafters.? SCEC connects to the social sciences through its mission to convey authoritative information to stakeholders in ways that result in lowered risk and enhanced resilience. SCEC's vision is to engage end-users and the public at large in on-going, community-centric conversations about how to manage particular risks by taking specific actions. The SCEC Communication, Education, and Outreach (CEO) program will promote this dialog on many levels and continue to build networks of organizational partners that can act in concert to prepare millions of people of all ages and socioeconomic levels for inevitable earthquake disasters.
URL	查看原文
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/71039
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	John Vidale.Southern California Earthquake Center: Research Program in Earthquake System Science, 2017-2022.2017.