Collaborative Research: Multi-scale models of subduction zone earthquake cycle observations
合作研究:俯冲带地震周期观测的多尺度模型
基本信息
- 批准号:1722680
- 负责人:
- 金额:$ 23.35万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-07-01 至 2020-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Earth's tectonic plates get recycled back into the mantle at subduction zones. The largest earthquakes happen there, and these megathrust environments also generate a range of other geohazards including tsunamis and volcanoes, making their study of great societal relevance. Recently, seismological and geodetic measurements have revealed a range of phenomena associated with megathrust behavior that are not captured by a simple, stick-slip earthquake cycle model of slow loading and catastrophic rupture. These newly discovered phenomena include transient, creeping events of fault slip on decadal scales which may indicate preparatory behavior of the fault system, perhaps systematically linked to the main seismic event. Mechanical models have not quite kept up with these new discoveries and our understanding of the physical processes behind these phenomena is incomplete. A new, integrative framework is therefore needed to understand the physical mechanisms and fault constitutive laws behind complex deformation and seismicity patterns. This project seeks to develop such a mechanical model, initially for the data rich Japan setting, in order to understand regional megathrust dynamics and fault interaction patterns, as well as improve seismic hazard estimates. Later, such a mechanical model may potentially be deployed at other subduction zones such as Cascadia and assist in interpreting existing and planned monitoring data streams for earthquake forecasting and early warning. To capture the spatial and temporal scales involved in this complex problem, three sub-projects are to be pursued in collaboration between researchers at University of Texas Austin (UTIG), Purdue University, and the University of Tokyo: 1) The development of sets of multi earthquake-cycle scenarios based on numerical models of visco-elastic, inter-, pre-, co- and post-seismic fault loading in Japan. 2) The development of global mantle flow and regional, time-evolving mantle convection models to understand long-term, subduction induced forcing of plate boundaries and backarcs in the region. 3) The development of cross-timescale, visco-elasto-plastic models in 3-D, incorporating rate and state friction as well as other fault constitutive laws in a dynamically consistent, thermo-mechanical convection framework. This will enable, for example, studying the role of pre-seismic, slow slip phenomena for fault zone evolution, eventually in the presence of fluid flow. All project parts will be integrated, and results from different approaches cross-checked. Moreover, all sub-projects are complementary and will guide the establishment of the general subduction zone model that is needed to understand earthquake cycle observations and seismicity in Japan and elsewhere.
地球的构造板块会在俯冲带再循环回到地幔中。最大的地震发生在那里,这些巨型逆冲环境也产生了一系列其他地质灾害,包括海啸和火山,使他们的研究具有重大的社会意义。最近,地震学和大地测量揭示了一系列与巨型逆冲断层行为相关的现象,这些现象不能被一个简单的缓慢加载和灾难性破裂的粘滑地震周期模型所捕获。这些新发现的现象包括在十年尺度上的断层滑动的瞬态蠕动事件,这可能表明断层系统的预备行为,可能与主要地震事件有系统的联系。力学模型还没有完全跟上这些新发现,我们对这些现象背后的物理过程的理解是不完整的。因此,需要一个新的综合框架来理解复杂变形和地震活动模式背后的物理机制和断层本构律。该项目旨在开发这样一个力学模型,最初用于数据丰富的日本环境,以了解区域巨型逆冲断层动力学和断层相互作用模式,以及改善地震危险性估计。之后,这种力学模型可能会部署在其他俯冲带,如卡斯卡迪亚,并协助解释现有的和计划的监测数据流,用于地震预报和预警。为了捕捉这一复杂问题所涉及的空间和时间尺度,德克萨斯大学奥斯汀分校(UTIG),普渡大学和东京大学的研究人员将合作开展三个子项目:1)基于日本粘弹性,地震间,地震前,地震同震和地震后断层加载的数值模型,开发多地震周期情景。2)发展全球地幔流和区域性的、随时间演变的地幔对流模型,以了解该地区板块边界和后弧的长期俯冲诱导作用力。3)跨时间尺度的发展,粘弹塑性模型在3-D,纳入率和状态摩擦,以及其他故障本构关系的动态一致,热机械对流框架。这将使,例如,研究地震前的作用,缓慢滑动现象的断层带演化,最终在流体流动的存在。项目的所有部分将被整合,不同方法的结果将被交叉检查。此外,所有分项目都是相辅相成的,将指导建立一般俯冲带模型,这是了解日本和其他地方地震周期观测和地震活动所需要的。
项目成果
期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Stress change before and after the 2011 M9 Tohoku-oki earthquake
- DOI:10.1016/j.epsl.2018.09.035
- 发表时间:2018-12-15
- 期刊:
- 影响因子:5.3
- 作者:Becker, Thorsten W.;Hashima, Akinori;Sato, Hiroshi
- 通讯作者:Sato, Hiroshi
Sediment control on subduction plate speeds
- DOI:10.1016/j.epsl.2018.08.057
- 发表时间:2018-11
- 期刊:
- 影响因子:5.3
- 作者:W. Behr;T. Becker
- 通讯作者:W. Behr;T. Becker
Simulation of slip transients and earthquakes in finite thickness shear zones with a plastic formulation.
- DOI:10.1038/s41467-018-06390-z
- 发表时间:2018-09-25
- 期刊:
- 影响因子:16.6
- 作者:Tong X;Lavier LL
- 通讯作者:Lavier LL
416-PFLOPS fast scalable implicit solver on low-ordered unstructured finite elements accelerated by 1.10-ExaFLOPS kernel with reformulated AI-like algorithm: For equation-based earthquake modeling
低阶非结构化有限元上的 416-PFLOPS 快速可扩展隐式求解器由 1.10-ExaFLOPS 内核加速,并采用重新制定的类 AI 算法:用于基于方程的地震建模
- DOI:
- 发表时间:2019
- 期刊:
- 影响因子:0
- 作者:IIchimura, T.
- 通讯作者:IIchimura, T.
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Thorsten Becker其他文献
12 Up and Over: How Do Rivers Climb Mountains? Constraining groundwater’s role in forming crater lake inlets on early Mars
12 反复:河流如何攀爬山脉?限制地下水在形成早期火星火山口湖入口方面的作用?
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
Hiruni Dissanayake;Naveen Sudharsan;Dev K. Niyogi;Lochana Kalyanaraman;Ifeanyichukwu Nduka;Cameron Cummins;Geeta Persad;Enrique Morales;Nicola Tisato;Erick Herrera;Caitlin Moeller;Doug Hemingway;Jesse Do;Lucia Bellino;Chenguang Sun;Jhovanni Loeza;Eric Hiatt;Marc A. Hesse;Jorge Garcia;Huiwen Sun;Thorsten Becker;Daniel Trugman;Julia Daniel;Jacqueline Epperson;M. Malkowski;Keira Boehle;Ramon Gil - 通讯作者:
Ramon Gil
Notfallversorgung in Industrieanlagen
- DOI:
10.1007/s10049-022-01095-9 - 发表时间:
2022-11-22 - 期刊:
- 影响因子:1.100
- 作者:
Thorsten Becker - 通讯作者:
Thorsten Becker
Thorsten Becker的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Thorsten Becker', 18)}}的其他基金
Collaborative Research: Toward an integrated modeling framework for physics-based estimates of megathrust rupture potential
合作研究:建立基于物理的巨型逆冲破裂潜力估计的综合建模框架
- 批准号:
2121666 - 财政年份:2021
- 资助金额:
$ 23.35万 - 项目类别:
Continuing Grant
Collaborative Research: Vertical signatures of lithospheric deformation in the western US
合作研究:美国西部岩石圈变形的垂直特征
- 批准号:
2045292 - 财政年份:2021
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: Resolving Earth Structure Influence on Ice-Sheet Stability in the Wilkes Subglacial Basin (RESISSt)
合作研究:解决地球结构对威尔克斯冰下盆地冰盖稳定性的影响 (RESISSt)
- 批准号:
1914743 - 财政年份:2020
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Global plate tectonics and mantle convection with damage memory
全球板块构造和具有损伤记忆的地幔对流
- 批准号:
1853856 - 财政年份:2019
- 资助金额:
$ 23.35万 - 项目类别:
Continuing Grant
Collaborative Research: RAPID: Using the M6.4-7.1 Ridgecrest, CA Earthquake sequence to test a postseismic stress evolution monitoring system
合作研究:RAPID:使用加利福尼亚州里奇克莱斯特 M6.4-7.1 地震序列测试震后应力演化监测系统
- 批准号:
1944717 - 财政年份:2019
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: Consequences of flat slab subduction on the chemical, structural, and dynamic evolution of continental lithosphere
合作研究:平板俯冲对大陆岩石圈化学、结构和动态演化的影响
- 批准号:
1925939 - 财政年份:2019
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: Structure and depth extent of lithospheric shear zones surrounding continental transform faults
合作研究:大陆转换断层周围岩石圈剪切带的结构和深度范围
- 批准号:
1927216 - 财政年份:2019
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
RCN: Planning for a Modeling Collaboratory for Subduction Zone Science
RCN:俯冲带科学建模实验室规划
- 批准号:
1824343 - 财政年份:2018
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: Shear-wave Splitting and Mantle Dynamics of the North American Plate
合作研究:北美板块的剪切波分裂和地幔动力学
- 批准号:
1719204 - 财政年份:2016
- 资助金额:
$ 23.35万 - 项目类别:
Continuing Grant
Estimating global subduction mass transport
估计全球俯冲质量传输
- 批准号:
1720839 - 财政年份:2016
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
相似国自然基金
Research on Quantum Field Theory without a Lagrangian Description
- 批准号:24ZR1403900
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
Cell Research
- 批准号:31224802
- 批准年份:2012
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research
- 批准号:31024804
- 批准年份:2010
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research (细胞研究)
- 批准号:30824808
- 批准年份:2008
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
- 批准号:10774081
- 批准年份:2007
- 资助金额:45.0 万元
- 项目类别:面上项目
相似海外基金
Collaborative Research: NCS-FR: Individual variability in auditory learning characterized using multi-scale and multi-modal physiology and neuromodulation
合作研究:NCS-FR:利用多尺度、多模式生理学和神经调节表征听觉学习的个体差异
- 批准号:
2409652 - 财政年份:2024
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: CDS&E: Generalizable RANS Turbulence Models through Scientific Multi-Agent Reinforcement Learning
合作研究:CDS
- 批准号:
2347423 - 财政年份:2024
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: CIF: Small: Mathematical and Algorithmic Foundations of Multi-Task Learning
协作研究:CIF:小型:多任务学习的数学和算法基础
- 批准号:
2343599 - 财政年份:2024
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: CIF: Small: Mathematical and Algorithmic Foundations of Multi-Task Learning
协作研究:CIF:小型:多任务学习的数学和算法基础
- 批准号:
2343600 - 财政年份:2024
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: Dynamics of Short Range Order in Multi-Principal Element Alloys
合作研究:多主元合金中的短程有序动力学
- 批准号:
2348956 - 财政年份:2024
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: GEM--Multi-scale Magnetosphere-Ionosphere-Thermosphere Coupling Dynamics Driven by Bursty Bulk Flows
合作研究:GEM——突发体流驱动的多尺度磁层-电离层-热层耦合动力学
- 批准号:
2349872 - 财政年份:2024
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: Evaluating Access: How a Multi-Institutional Network Promotes Equity and Cultural Change through Expanding Student Voice
合作研究:评估访问:多机构网络如何通过扩大学生的声音来促进公平和文化变革
- 批准号:
2309310 - 财政年份:2024
- 资助金额:
$ 23.35万 - 项目类别:
Continuing Grant
Collaborative Research: Evaluating Access: How a Multi-Institutional Network Promotes Equity and Cultural Change through Expanding Student Voice
合作研究:评估访问:多机构网络如何通过扩大学生的声音来促进公平和文化变革
- 批准号:
2309308 - 财政年份:2024
- 资助金额:
$ 23.35万 - 项目类别:
Continuing Grant
Collaborative Research: Dynamics of Short Range Order in Multi-Principal Element Alloys
合作研究:多主元合金中的短程有序动力学
- 批准号:
2348955 - 财政年份:2024
- 资助金额:
$ 23.35万 - 项目类别:
Standard Grant
Collaborative Research: Evaluating Access: How a Multi-Institutional Network Promotes Equity and Cultural Change through Expanding Student Voice
合作研究:评估访问:多机构网络如何通过扩大学生的声音来促进公平和文化变革
- 批准号:
2309309 - 财政年份:2024
- 资助金额:
$ 23.35万 - 项目类别:
Continuing Grant