Collaborative Research: Collection of Open Data for Broadband Seismological Observations of Aftershocks of the February 27, 2010 Chilean Earthquake

合作研究：2010 年 2 月 27 日智利地震余震宽带地震观测开放数据收集

• 批准号: 1036352
• 负责人: David Simpson
• 金额: $ 19.2万
• 依托单位: Incorporated Research Institutions for Seismology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-05-01 至 2013-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1036352&HistoricalAwards=false
• 关键词: Collaborative; Research; Collection; Open; Data

The magnitude 8.8 earthquake off the coast of Chile on February 27, 2010 is the fifth largest megathrust earthquake ever to be recorded and provides an unprecedented opportunity to advance our understanding of megathrust earthquakes and associated phenomena. An array of 60 portable, broadband seismic stations will be deployed in the aftershock zone for approximately six months as a collaborative effort, involving scientific leadership from academic institutions like the University of Florida, University of Arizona, and Rensselaer Polytechnic Institute, and the facilities of IRIS/PASSCAL/USArray, to collect an open community data set. The deployments and subsequent data collection and research will be carried out in close collaboration with the University of Chile in Santiago and other international groups installing seismic and geodetic instrumentation in the rupture area. Recent advances in understanding episodic tremors and slow slip events at the down-dip edge of megathrust rupture zones are reshaping our thinking about subduction zone dynamics. The 2010 Chile earthquake provides an excellent opportunity to collect important observations above the seismogenic zone, the deeper episodic tremor regions, and in the down-going and over-riding plates. This segment of the Chile subduction zone has similarities with Cascadia and Alaska (shallow dip, sediments in the trench, and history of great earthquakes) and can provide important information for comparative studies. An energetic aftershock sequence will likely to continue for many months. The goal of the deployment is to produce an open community data product for the 2010 Chile earthquake for a large range of science projects. A community-wide coordinated approach will provide the best quality data set that can be utilized immediately by a wide range of PIs and institutions around the world. This award is supported by THe Earth Sciences Division of the Geoscience Directorate and the Office of International Science and Engineering, Americas Program.

2010年2月27日，智利海岸的8.8级地震是有史以来第五大巨像地震，并提供了前所未有的机会，以促进我们对大型地震和相关现象的理解。一系列便携式宽带地震电台将在余震区部署大约六个月，作为一项协作努力，涉及佛罗里达大学，亚利桑那大学和伦斯勒大学和伦斯勒大学理工学院等学术机构的科学领导，以及IRIS/Passcal/usarray的设施，以收集开放式社区数据集。部署和随后的数据收集和研究将与圣地亚哥大学和其他国际团体密切合作，在破裂地区安装地震和地球仪器。在巨型破裂区的倾斜边缘，了解情节震颤和慢速事件的最新进展正在重塑我们对俯冲区动力学的思考。 2010年的智利地震提供了一个绝佳的机会，可以在地震生成区域，更深的情节震颤区域以及倒下和过度骑行的板块上收集重要的观察结果。智利俯冲带的这一部分与卡斯卡迪亚和阿拉斯加（浅浸，沟渠中的沉积物以及大地震史）具有相似之处，并且可以为比较研究提供重要信息。充满活力的余震序列可能会持续数月。部署的目的是为2010年智利地震生产开放的社区数据产品，用于各种科学项目。一种社区范围的协调方法将提供最优质的数据集，可以立即由世界各地的PIS和机构立即利用。该奖项得到了地球科学局地球科学司和美洲国际科学与工程办公室的支持。