Collaborative Research: Analysis of Seismicity Associated with the Mw=8.8 2010 Maule Earthquake and Implications for Subduction Processes

合作研究:2010 年马乌莱地震 Mw=8.8 相关地震活动分析及其对俯冲过程的影响

基本信息

  • 批准号:
    1045633
  • 负责人:
  • 金额:
    $ 8.15万
  • 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:
    2011-02-15 至 2014-01-31
  • 项目状态:
    已结题

项目摘要

The Mw=8.8 Maule earthquake off the coast of Chile onFebruary 27, 2010 is the 5th largest megathrust earthquake ever to be recorded and the 2ndlargest to be recorded by modern digital seismic networks. Immediately following theMaule earthquake, teams of seismologists from Germany, France, the UK, and the US,working with seismologists in Chile, coordinated resources to deploy both broadband andshort period seismometers and accelerometers above the rupture zone to captureaftershocks associated with this significant earthquake. Data recorded from these stationswill be combined to produce an open international community data volume providing anunprecedented opportunity to investigate processes associated with great earthquakes andto image the anatomy of a subduction zone. A defining characteristic of the Maule aftershock investigationshas been collaboration, at both national and international levels. The original involvementin the data collection by US teams grew voluntarily out of the IRIS community, and therationale of greater efficiencies through cooperation was readily adapted by the fiveinternational groups working in the region.In this project the researchers will carry out a broad butinterrelated spectrum of seismic analyses to the Maule international seismic data set,along with a reanalysis of a selection of data collected in the rupture zone prior to theearthquake, to address some of the fundamental scientific objectives that motivated theinitial data collection. These objectives fall into two general categories: (1) ruptureprocesses of megathrusts, and (2) active tectonics and dynamics of an oceanic-continental(Andean) margin. They intend to produce an internally consistent set of data products across a range ofanalytical techniques. The PIs will share graduate students and scheduling extended visits to each others labs, thereby exposing students to a significantly broader range of experience than most students typically enjoy. Finally, they plan to engage our international colleagues by sharing some analysis tasks of mutualinterest. Data products generated by this study will be made available to the broaderinternational community via a dedicated web site.
2010年2月27日智利马乌莱海域发生的Mw=8.8地震是有史以来记录到的第5大地震,也是现代数字地震台网记录到的第2大地震。马乌莱地震发生后,来自德国、法国、英国和美国的地震学家团队立即与智利的地震学家合作,协调资源在破裂带上方部署宽带和短周期地震仪和加速度计,以捕捉与这次重大地震相关的余震。从这些台站记录的数据将被合并,以产生一个开放的国际社区数据量,为调查与大地震相关的过程和对俯冲带的解剖结构进行成像提供前所未有的机会。马乌莱余震调查的一个决定性特征是在国家和国际层面上的合作。美国团队最初参与数据收集是在IRIS社区的自愿基础上发展起来的,而通过合作提高效率的理念也很容易被在该地区工作的五个国际组织所接受。在这个项目中,研究人员将对Maule国际地震数据集进行广泛但相互关联的地震分析,沿着对地震前在破裂带收集的数据进行重新分析,以解决激发最初数据收集的一些基本科学目标。这些目标分为两大类:(1)巨型逆冲断层的破裂过程,(2)大洋-大陆(安第斯)边缘的活动构造和动力学。他们打算在一系列分析技术中产生一套内部一致的数据产品。PI将分享研究生,并安排对彼此实验室的长期访问,从而使学生获得比大多数学生通常享受的更广泛的经验。最后,他们计划通过分享一些共同感兴趣的分析任务来吸引我们的国际同事。这项研究产生的数据产品将通过一个专门网站提供给更广泛的国际社会。

项目成果

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Steven Roecker其他文献

Anomalous intraslab structure revealed by the analysis of aftershocks of the Msubw/sub 6.7 Coquimbo-La Serena earthquake of 20 January 2019
2019 年 1 月 20 日 Mw6.7 科金博-拉塞雷纳地震余震分析揭示的板内异常结构
  • DOI:
    10.1016/j.tecto.2022.229660
  • 发表时间:
    2023-01-05
  • 期刊:
  • 影响因子:
    2.600
  • 作者:
    Diana Comte;Marcelo Farías;Daniela Calle-Gardella;Andrea Navarro-Aranguiz;Steven Roecker;Andreas Rietbrock
  • 通讯作者:
    Andreas Rietbrock
Anomalous intraslab structure revealed by the analysis of aftershocks of the M<sub>w</sub> 6.7 Coquimbo-La Serena earthquake of 20 January 2019
  • DOI:
    10.1016/j.tecto.2022.229660
  • 发表时间:
    2023-01-05
  • 期刊:
  • 影响因子:
  • 作者:
    Diana Comte;Marcelo Farías;Daniela Calle-Gardella;Andrea Navarro-Aranguiz;Steven Roecker;Andreas Rietbrock
  • 通讯作者:
    Andreas Rietbrock

Steven Roecker的其他文献

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{{ truncateString('Steven Roecker', 18)}}的其他基金

Collaborative Research: Active and Passive Seismic Imaging of the Three-Dimensional Structure and Magma System beneath the Summit of Kilauea Volcano
合作研究:基拉韦厄火山顶下三维结构和岩浆系统的主动和被动地震成像
  • 批准号:
    2218646
  • 财政年份:
    2023
  • 资助金额:
    $ 8.15万
  • 项目类别:
    Standard Grant
Investigation of Anomalous Travel Times in the Central Andes: Possible Evidence for a Lithospheric Root Trapped Above a Flat Slab
安第斯山脉中部异常旅行时间的调查:岩石圈根部被困在平板上方的可能证据
  • 批准号:
    2027496
  • 财政年份:
    2021
  • 资助金额:
    $ 8.15万
  • 项目类别:
    Continuing Grant
Collaborative Research: TransANdean Great Orogeny (TANGO)
合作研究:跨安第斯大造山运动(TANGO)
  • 批准号:
    2021040
  • 财政年份:
    2020
  • 资助金额:
    $ 8.15万
  • 项目类别:
    Standard Grant
Collaborative Research: Lithospheric foundering beneath the Sierra Nevada constrained by analysis of an anomalous Pn shadow zone
合作研究:异常 Pn 阴影区分析限制了内华达山脉下方的岩石圈沉没
  • 批准号:
    1547149
  • 财政年份:
    2016
  • 资助金额:
    $ 8.15万
  • 项目类别:
    Standard Grant
Collaborative Research: Seismic characterization of microearthquakes and crustal velocity structure around the Whataroa fault zone drilling site, Alpine Fault, New Zealand
合作研究:新西兰高山断层瓦塔罗阿断层带钻探现场周围微地震和地壳速度结构的地震特征
  • 批准号:
    1114147
  • 财政年份:
    2011
  • 资助金额:
    $ 8.15万
  • 项目类别:
    Standard Grant
Collaborative Research: Testing the Role of Magma and Related Fluids in Early-Stage Rifting, East Africa
合作研究:测试岩浆和相关流体在东非早期裂谷中的作用
  • 批准号:
    1113346
  • 财政年份:
    2011
  • 资助金额:
    $ 8.15万
  • 项目类别:
    Continuing Grant
Collaborative Research: TAIGER's Tale: Tectonics of Subduction to Collision
合作研究:TAIGER 的故事:俯冲到碰撞的构造
  • 批准号:
    1010580
  • 财政年份:
    2010
  • 资助金额:
    $ 8.15万
  • 项目类别:
    Standard Grant
Development of a Teleseismic Viscoelastic Waveform Tomography Algorithm with Application to Broadband Seismograms from the Tien Shan
开发应用于天山宽带地震图的远震粘弹性波形层析成像算法
  • 批准号:
    0838384
  • 财政年份:
    2009
  • 资助金额:
    $ 8.15万
  • 项目类别:
    Continuing Grant
Development of New Features for the PyLith Finite Element Code to Enable Innovative Research In Multiple Earthquake Cycle Simulations
开发 PyLith 有限元代码的新功能,以实现多地震周期模拟中的创新研究
  • 批准号:
    0745391
  • 财政年份:
    2008
  • 资助金额:
    $ 8.15万
  • 项目类别:
    Continuing Grant
Collaborative Research: Imaging the Upper Mantle Beneath the Western Tibetan Plateau
合作研究:对青藏高原西部下方的上地幔进行成像
  • 批准号:
    0439976
  • 财政年份:
    2005
  • 资助金额:
    $ 8.15万
  • 项目类别:
    Continuing Grant

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