Collab. Res: The 2004-2005 giant earthquakes and the seismic cycle along the Sumatra subduction zone: A multidisciplinary investigation from geodesy, seismology and paleogeodesy.

合作。

• 批准号: 0538333
• 负责人: Kerry Sieh
• 金额: $ 36.38万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-03-01 至 2009-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0538333&HistoricalAwards=false
• 关键词: Collab.; Res; 2004; 2005; giant

.This is a proposal to understand better the Sunda subduction megathrust, whose ruptureproduced the giant earthquakes of late 2004 and early 2005 along the western coast of Sumatra. During the 3-year grant period the researchers will investigate the short- and long-term behavior of the Sumatran sections of these great ruptures, using records of vertical deformation contained in coral microatolls. The principal reason for deciphering an extended history of inter- and co-seismic motions on this active fault is to promote a more complete understanding of the mechanics of cyclic strain accumulation and relief. The records will span not only the months before and after the recent giant earthquakes, but also prior decades and centuries, including 1861 and 1907, the dates of two prior large tsunamigenic earthquakes. Significant non-scientific aspects of the work are hazard mitigation and educational activities precipitated by the realization that dangerous, giantearthquakes and tsunamis occur along the Sumatran west coast. The PIs will continue to create educational posters and brochures based upon our Sumatran discoveries and distributing them by the thousands to West and North Sumatran villagers and American and Australian surfers. They also intend to enhance existing middle and high school Earth science curricula with scientific content that incorporates recent and/or new findings as a result of this research.

这是一个更好地理解巽他俯冲巨型逆冲断层的建议，该断层的破裂再现了沿着苏门答腊西海岸2004年底和2005年初的大地震。在3年的资助期内，研究人员将利用珊瑚微环礁中的垂直变形记录，调查这些大断裂的Summers部分的短期和长期行为。破译这个活动断层上的地震间和同震运动的扩展历史的主要原因是为了促进对周期性应变积累和释放的力学的更完整的理解。这些记录不仅涵盖了最近几次大地震前后的几个月，还涵盖了之前的几十年和几个世纪，包括1861年和1907年，这是之前两次大海啸地震的日期。这项工作的重要非科学方面是减灾和教育活动，因为认识到沿着苏门答腊西海岸会发生危险的巨地震和海啸。PI将继续根据我们的Summaries发现制作教育海报和小册子，并将其分发给成千上万的西部和北部Summaries村民以及美国和澳大利亚的冲浪者。他们还打算加强现有的初中和高中地球科学课程，增加科学内容，纳入这项研究的最新和/或新发现。