Generation Mechanism of Non-Seismic Tsunamis

非地震海啸的发生机制

• 批准号: 9405767
• 负责人: Larry Ruff
• 金额: $ 15.6万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-15 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9405767&HistoricalAwards=false
• 关键词: Generation; Mechanism; Non; Seismic; Tsunamis

9405767 Satake This research is to quantitatively model non-seismic tsunamis. Tsunamis are caused by various geological phenomena and recorded as waveforms on tide gauges, documented as run-up heights or geologically recorded as tsunami deposits. Tsunamis from earthquake fault motion have been well studied and the earthquake source parameters can be estimated from tsunami records. Generation mechanism of non-seismic tsunamis, on the other hand, is still poorly known and various speculations have been make for the source of the observed tsunamis, without making quantitative examinations. These include unusually large tsunamis from "tsunami" earthquakes, volcanic tsunamis and possibly submarine landslides, as revealed by recent submarine imaging. This research will help us better understand the submarine geological processes that generate tsunamis, and also will provide us basic information to prepare for future tsunamis. This research is a component of the National Earthquake Hazard Reduction Program. ***

小行星9405767 这项研究是定量模拟非地震海啸。 海啸是由各种地质现象引起的，在验潮仪上记录为波形，记录为上升高度，或在地质学上记录为海啸沉积物。 地震断层运动引起的海啸已经得到了很好的研究，并且可以从海啸记录中估计震源参数。 另一方面，非地震海啸的生成机制仍然知之甚少，人们对观测到的海啸的来源进行了各种猜测，但没有进行定量研究。 这些包括由“海啸”地震、火山海啸和可能的海底滑坡引起的异常大的海啸，正如最近的海底成像所揭示的那样。 这项研究将有助于我们更好地了解产生海啸的海底地质过程，也将为我们为未来的海啸做好准备提供基本信息。 这项研究是国家地震减灾计划的一个组成部分。 ***