Towards a Comprehensive Understanding of Episodic Tremor and Slip

全面了解阵发性震颤和滑倒

基本信息

  • 批准号:
    0710835
  • 负责人:
  • 金额:
    $ 27.98万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2007
  • 资助国家:
    美国
  • 起止时间:
    2007-08-01 至 2011-07-31
  • 项目状态:
    已结题

项目摘要

In this research we develop and apply techniques to improve our understanding of a recently discovered phenomenon known as deep, non-volcanic tremor. Deep tremor is a more or less incessant, but weak, shaking of the ground that has been associated with large, but very slow earthquakes. The nature of tremor, with long, but not impulsive, episodes of ground motion requires new and innovative approaches from seismologists because the usual analysis applied to ordinary earthquakes cannot be applied to tremor. We are currently improving methods that have already been developed by the PI and his colleagues, and applying them to tremor in different areas. We are also continue to develop new and improved methods for tremor analysis. Among these are matched-filter analysis of low frequency earthquakes, a running auto-correlation analysis of tremor episodes to detect low frequency earthquakes, and a ''sub-space'' detection algorithm for identifying similar, but not identical small low frequency earthquakes. We use the understanding that emerges from this analysis to address the systematics of tremor behavior of the mechanics of the tremor process. The areas of the proposed study are all areas where tremor occurrence is well documented, specifically: Cascadia, Southwest Japan, and Central California. The strategic location of tremor -- at the boundary of the locked zone where we expect future large earthquakes to initiate -- and the emerging understanding that it represents shear slip on the plate boundary, makes this an important research target with significant potential implications for earthquake forecasting. In particular, an improved understanding should help scientists to assess the significance of deep tremor for earthquake hazard in the Cascadia subduction zone and in central California, where tremor is observed deep under the Cholame segment of the San Andreas Fault, a segment that has not ruptured in over 150 years. Another important broader impact is the international flavor of this work: U.S. researchers and graduate students will collaborate with researchers at the University of Tokyo, the National Institute for Earth Sciences and Disaster Prevention, and other institutions in Japan on significant portions of this research.
在这项研究中,我们开发并应用技术来提高我们对最近发现的深部非火山震颤现象的理解。 深震是一种或多或少持续但微弱的地面震动,与大但非常缓慢的地震有关。 地震的性质是长期但非脉冲性的地面运动,因此需要地震学家采取新的创新方法,因为适用于普通地震的常规分析不能应用于地震。 我们目前正在改进 PI 及其同事已经开发的方法,并将其应用于不同领域的震颤。 我们还继续开发新的和改进的震颤分析方法。其中包括低频地震的匹配滤波器分析、用于检测低频地震的地震事件的运行自相关分析,以及用于识别相似但不相同的小型低频地震的“子空间”检测算法。 我们利用从该分析中得出的理解来解决震颤过程机制的震颤行为的系统学问题。 拟议研究的地区都是有详细记录地震发生的地区,特别是:卡斯卡迪亚、日本西南部和加利福尼亚中部。 地震的战略位置——位于锁定区的边界,我们预计未来大地震将在此处引发——以及人们对它代表板块边界上的剪切滑移的新认识,使之成为一个重要的研究目标,对地震预报具有重大的潜在影响。 特别是,更好的理解应该有助于科学家评估深层地震对卡斯卡迪亚俯冲带和加利福尼亚州中部地震危险的重要性,在圣安德烈亚斯断层乔拉梅段深处观察到地震,该断层已经有 150 多年没有破裂过。 另一个重要的更广泛的影响是这项工作的国际风味:美国研究人员和研究生将与东京大学、日本国家地球科学与灾害预防研究所以及日本其他机构的研究人员合作开展这项研究的重要部分。

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)

数据更新时间:{{ journalArticles.updateTime }}

{{ 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 }}

Gregory Beroza其他文献

Gregory Beroza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('Gregory Beroza', 18)}}的其他基金

Seafloor Fiber Optic Array in Monterey Bay (SEAFOAM)
蒙特利湾海底光纤阵列 (SEAFOAM)
  • 批准号:
    2023301
  • 财政年份:
    2020
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Standard Grant
Collaborative Research: Mining Seismic Wavefields
合作研究:挖掘地震波场
  • 批准号:
    1818579
  • 财政年份:
    2018
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Standard Grant
The Second Cargese School on Earthquakes - Participant Support
第二届 Cargese 地震学校 - 参与者支持
  • 批准号:
    1743284
  • 财政年份:
    2017
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Standard Grant
Collaborative Research: Mining Seismic Wavefields
合作研究:挖掘地震波场
  • 批准号:
    1551462
  • 财政年份:
    2016
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Standard Grant
Ground Motion Prediction Using Virtual Earthquakes
使用虚拟地震进行地面运动预测
  • 批准号:
    1520867
  • 财政年份:
    2015
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Continuing Grant
The Bucaramanga Nest: A Natural Laboratory for Exploring the Mechanics of Intermediate Depth Earthquakes
布卡拉曼加巢:探索中深度地震力学的天然实验室
  • 批准号:
    1045684
  • 财政年份:
    2011
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Standard Grant
Long-Period Strong Ground Motion Prediction Using the Ambient Seismic Field
利用环境地震场进行长周期强地震动预测
  • 批准号:
    0943885
  • 财政年份:
    2010
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Standard Grant
The Mechanics of Subduction in Japan from High-Precision Earthquake Location and Tomography
从高精度地震定位和断层扫描研究日本俯冲机制
  • 批准号:
    0409917
  • 财政年份:
    2004
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Continuing Grant
Radiated Seismic Energy from Very Small and Very Large Earthquakes
非常小和非常大的地震辐射的地震能量
  • 批准号:
    0208499
  • 财政年份:
    2002
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Continuing Grant
Dynamic-Stochastic Modeling of Earthquake Rupture and Strong Ground Motion
地震破裂和强地震动的动态随机建模
  • 批准号:
    0106823
  • 财政年份:
    2001
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Standard Grant

相似海外基金

English Education and Public Speech: Towards Development of a Comprehensive Teaching Method by Sound, Grammar, and Cultural Understanding
英语教育和公共演讲:通过声音、语法和文化理解发展综合教学方法
  • 批准号:
    23K00769
  • 财政年份:
    2023
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
COVID-19 Variant Network - Towards a comprehensive understanding of adaptive immunity to SARS-CoV-2
COVID-19 变体网络 - 全面了解 SARS-CoV-2 的适应性免疫
  • 批准号:
    443065
  • 财政年份:
    2021
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Operating Grants
Collaborative Research: Towards a More Comprehensive Understanding of Eulerian and Lagrangian Transport of Active and Passive Tracers in the Ocean
合作研究:更全面地了解海洋中主动和被动示踪剂的欧拉和拉格朗日传输
  • 批准号:
    2124210
  • 财政年份:
    2021
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Standard Grant
Collaborative Research: Towards a More Comprehensive Understanding of Eulerian and Lagrangian Transport of Active and Passive Tracers in the Ocean
合作研究:更全面地了解海洋中主动和被动示踪剂的欧拉和拉格朗日传输
  • 批准号:
    2124211
  • 财政年份:
    2021
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Standard Grant
COVID-19 Variant Supplement - Towards a comprehensive understanding of adaptive immunity to SARS-CoV-2
COVID-19 变异补充剂 - 全面了解 SARS-CoV-2 的适应性免疫
  • 批准号:
    443132
  • 财政年份:
    2021
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Operating Grants
Towards a comprehensive understanding of adaptive immunity to SARS-CoV-2
全面了解 SARS-CoV-2 的适应性免疫
  • 批准号:
    430671
  • 财政年份:
    2020
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Operating Grants
Multi-length scale mechanical characterisations towards comprehensive understanding of the microstructure - hydrogen embrittlement relationship
多长度尺度机械表征,全面了解微观结构-氢脆关系
  • 批准号:
    19H02464
  • 财政年份:
    2019
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
English Education and Proverbs: Towards Development of a Comprehensive Teaching Method by Sound, Grammar, and Cultural Understanding
英语教育和谚语:通过声音、语法和文化理解发展综合教学方法
  • 批准号:
    19K00907
  • 财政年份:
    2019
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Towards a comprehensive understanding of the amino acid-sensing system that induces activation of TORC1 that controls cell growth
全面了解诱导 TORC1 激活(控制细胞生长)的氨基酸传感系统
  • 批准号:
    18K06111
  • 财政年份:
    2018
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Towards an understanding of iron metabolism: comprehensive identification of iron-related molecules
了解铁代谢:全面鉴定铁相关分子
  • 批准号:
    18K19433
  • 财政年份:
    2018
  • 资助金额:
    $ 27.98万
  • 项目类别:
    Grant-in-Aid for Challenging Research (Exploratory)
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了