Coordinated Deployment of Seismic Instruments to Record Aftershocks of the September 2010 New Zealand Earthquake
协调部署地震仪器记录 2010 年 9 月新西兰地震的余震
基本信息
- 批准号:1102767
- 负责人:
- 金额:$ 3.1万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2011
- 资助国家:美国
- 起止时间:2011-01-01 至 2011-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The September 4, 2010, Darfield, New Zealand earthquake is the most damagingearthquake to strike New Zealand since the 1931 Napier Earthquake. Although no lives werelost, damage was extensive in the area, particularly in nearby Christchurch, and economic lossesare expected to total over NZ $2 billion. The earthquake is also scientifically interesting and inmany ways surprising. It occurred on a previously unmapped fault in an area that was presumedto have lower risks than other areas (e.g., the Alpine Fault). The complex source time functionindicates that two or more subevents were involved.One of the most surprising aspects is thepredominantly strike-slip character of the event along a nearly east-west fault. South Islandtectonics are dominated by the Alpine Fault system and nearby, mostly northeast-southweststriking strike slip faults, such as the Hope Fault. The data from this project will provide aunique opportunity to study a fault that is very likely quite young and immature, and thusfundamentally different in character from mature faults such as the San Andreas Fault inCalifornia or the Anatolian Fault in Turkey.New Zealand and UW-Madison scientists have deployed temporary seismic instrumentsto monitor aftershocks. The New Zealand instruments were deployed by GNS Science andVictoria University staff, led by Terry Webb and Martha Savage, respectively. PI Thurberarranged for the shipment of 9 RAMP instruments from the IRIS/PASSCAL facility toChristchurch and sent 2 UW-Madison staff to New Zealand to deploy them. 18 short-period, 9 broadband, and 3 strong motion instruments will be deployed through this joint endeavor. The RAMP deployment will continue until mid January 2011. The data will be made available to the scientific community within the time frame required for IRIS/PASSCAL "RAMP" deployments.The project will support a postdoctoral student to participate in the deployment, and foster a collaboration with scientific teams in New Zealand. This work is jointly supported by the Office of International Science and Engineering and the Geophysics program.
2010年9月4日新西兰达菲尔德地震是自1931年纳皮耶地震以来新西兰遭受的最严重地震。虽然没有人员伤亡,但该地区受到了广泛的破坏,特别是在附近的基督城,经济损失预计将超过20亿新西兰元。这次地震在科学上也很有趣,在许多方面令人惊讶。它发生在一个以前未绘制地图的断层上,该断层所在的地区被认为风险低于其他地区(例如,阿尔卑斯断层(Alpine Fault)复杂的震源时间函数表明,该事件涉及两个或更多的子事件。最令人惊讶的方面之一是,该事件沿沿着一条近东西向的断层具有显著的走滑特征。南岛的构造主要由阿尔卑斯断层系统和附近的,主要是东北-西南走向的走滑断层,如霍普断层。该项目的数据将提供一个独特的机会来研究一个很可能非常年轻和不成熟的断层,因此与加利福尼亚州的圣安德烈亚斯断层或土耳其的安纳托利亚断层等成熟断层在性质上有着根本的不同。新西兰和威斯康星大学麦迪逊分校的科学家已经部署了临时地震仪器来监测余震。新西兰的仪器由GNS科学和维多利亚大学的工作人员部署,分别由Terry Webb和Martha Savage领导。PI Thurber安排将9台RAMP仪器从IRIS/PASSCAL设施运往基督城,并派遣2名威斯康星大学麦迪逊分校的工作人员前往新西兰部署。通过这次联合奋进,将部署18台短周期、9台宽带和3台强震仪器。RAMP部署将持续到2011年1月中旬。这些数据将在IRIS/PASSCAL“RAMP”部署所需的时间范围内提供给科学界,该项目将支持一名博士后学生参与部署,并促进与新西兰科学团队的合作。这项工作由国际科学与工程办公室和地球物理计划共同支持。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Clifford Thurber其他文献
Clifford Thurber的其他文献
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