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.

这是一项更好地理解Sunda俯冲Megathrust的建议，其破裂造成了2004年末和2005年初沿苏门答腊西海岸的巨大地震。在三年的赠款期间，研究人员将使用珊瑚微蓄能中包含的垂直变形记录来研究这些大破裂的苏门答腊部分的短期和长期行为。在这一主动断层上解解了扩展的跨性和共同体运动历史的主要原因是，促进对环状应变积累和缓解的机制有更完整的理解。这些记录将不仅涵盖最近巨大地震之前和之后的几个月，而且还将跨越前几十年和几个世纪，包括1861年和1907年，这是两个以前的两次大型海啸地震的日期。这项工作的重要非科学方面是减轻危害和教育活动，这是由于苏门答腊西海岸发生了危险，巨型夸张和海啸的认识。 PI将继续根据我们的苏门答腊发现创建教育海报和小册子，并将成千上万的西部和北苏门答腊村民以及美国和澳大利亚冲浪者分发。他们还打算用科学内容来增强现有的中学和高中科学课程，并通过本研究结合最新和/或新发现。