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Workshop on the Prediction of Underwater Landslide & Slump Occurrence And Tsunami Hazards Off Of Souterhn California

水下滑坡预测研讨会

基本信息

批准号：
9981789
负责人：
Jean Pierre Bardet
金额：
$ 4.47万
依托单位：
University of Southern California
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1999
资助国家：
美国
起止时间：
1999-10-01 至 2001-03-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9981789&HistoricalAwards=false
关键词：
Workshop Prediction Underwater Landslide &amp

项目摘要

Scientists and engineers are currently unable to assess underwater landslide and slump risk, or to predict their occurrence following a nearby earthquake, or to evaluate their tsunamigenic potential, or be able to warn coastal communities of imminent danger.Underwater landslides and slumps pose a continuous threat to US coastal economic activity, including valuable offshore structures and port facilities. Some of the largest and most deadly tsunamis this decade (e.g. Papua New Guinea, Flores Island, Nicaragua) involved wave generation by nearshore underwater landslides or slumps. These events generated tsunami runup reaching 100 feet above sea level, far surpassing most previous predictions of maximum tsunami amplitude for such moderate earthquakes.This action is to support an interdisciplinary approach to underwater landslide and slump hazard assessment, with the goal of contributing to the development of deterministic or probabilistic predictions of failure size and location. Specifically, it is to support (1) a workshop to present the state-of-the-art in all pertinent disciplines, (2) evaluate existing predictive models, (3) compare databases and case studies, (4) focus future research activities, (5) write recommendations for public agencies, and (6) discuss the creation of a research center to further predictions of underwater landslide and slump, and to apply these to the development of reliable tsunami warnings involving US coastal waters.

科学家和工程师目前无法评估水下滑坡和崩塌的风险，或预测其在附近地震后的发生，或评估其引发海啸的潜力，或能够警告沿海社区即将发生的危险。水下滑坡和崩塌对美国沿海经济活动构成持续威胁，包括宝贵的海上结构和港口设施。这十年来一些最大和最致命的海啸（例如巴布亚新几内亚、弗洛雷斯岛、尼加拉瓜）涉及近岸水下滑坡或滑坡产生的波浪。这些事件产生的海啸高达海平面以上100英尺，远远超过了大多数以前的预测，最大的海啸振幅为这样的中等地震。这一行动是支持一个跨学科的方法，水下滑坡和滑塌灾害评估，与故障的大小和位置的确定性或概率预测的发展作出贡献的目标。具体来说，它是为了支持（1）一个研讨会，介绍所有相关学科的最新技术，（2）评估现有的预测模型，（3）比较数据库和案例研究，（4）关注未来的研究活动，（5）为公共机构撰写建议，以及（6）讨论建立一个研究中心，以进一步预测水下滑坡和滑塌。并将其应用于发展涉及美国沿海沃茨的可靠海啸警报。