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: 0537973
• 负责人: Richard Edwards
• 金额: --
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard 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=0537973&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.

。这是为了更好地理解巽他俯冲巨型逆冲构造，该构造的破裂导致了2004年底和2005年初苏门答腊岛西海岸的大地震。在为期3年的资助期内，研究人员将利用珊瑚微环礁的垂直变形记录，调查这些巨大断裂的苏门答腊部分的短期和长期行为。破译这一活动断层上的互震和同震运动的长期历史的主要原因是促进对循环应变积累和释放机制的更完整理解。这些记录不仅涵盖了最近的大地震前后的几个月，而且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。这项工作的重要的非科学方面是减灾和教育活动，这是由于认识到苏门答腊西海岸发生危险的大地震和海啸而促成的。pi将继续根据我们在苏门答腊的发现制作教育海报和小册子，并将它们成千上万地分发给西苏门答腊和北苏门答腊的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，使其科学内容纳入这项研究的最新和（或）新发现。