Improving Earthquake Ground Motion Prediction Across Canada

改善加拿大各地的地震地面运动预测

• 批准号: RGPIN-2016-04634
• 负责人: Molnar, Sheri
• 金额: $ 1.82万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633616
• 关键词: Improving; Earthquake; Ground; Motion; Prediction

There is a lot of uncertainty in earthquake ground motion prediction: How will the earthquake rupture propagate in time and space?, What will be the distribution of earthquake shaking?, Will my building withstand the shaking? The long-term vision of my research program is to improve prediction of earthquake ground shaking across Canada, in particular understanding how earthquake waves are altered as they travel through the earth’s geologic layers along their path (regional scale) and at a surface site (local scale). To achieve these goals, I will develop and apply state-of-the-art geophysical techniques: field-based microtremor methods and theoretical 3D wave propagation modelling. Estimating the impact or consequences of an earthquake depends directly on estimates of earthquake ground shaking, which are reliant on understanding site response and geological amplifications. This understanding will inform a range of multi-disciplinary works aimed at estimating and mitigating potential earthquake losses in the forms of casualties, building damage, and system interruptions.

在地震地面运动预测中有很多不确定性：地震破裂将如何在时间和空间上传播？地震震动的分布情况如何？我的建筑物能经受得住震动吗？我的研究计划的长期愿景是提高整个加拿大地震地面震动的预测，特别是了解地震波是如何改变，因为他们通过地球的地质层沿沿着他们的路径（区域规模），并在地面站点（当地规模）。为了实现这些目标，我将开发和应用最先进的地球物理技术：基于场的微动方法和理论3D波传播建模。估计地震的影响或后果直接取决于对地震地面震动的估计，这取决于对场地反应和地质放大的理解。这种理解将为一系列旨在估计和减轻潜在地震损失的多学科工作提供信息，这些损失包括人员伤亡、建筑物损坏和系统中断。