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非火山震颤研究综述

卫志杰 杨旻 王同利 葛慧颖 李炎臻 李波霖

卫志杰, 杨旻, 王同利, 葛慧颖, 李炎臻, 李波霖. 非火山震颤研究综述[J]. 地震科学进展, 2019, (1): 7-12. doi: 10.3969/j.issn.0253-4975.2019.01.004
引用本文: 卫志杰, 杨旻, 王同利, 葛慧颖, 李炎臻, 李波霖. 非火山震颤研究综述[J]. 地震科学进展, 2019, (1): 7-12. doi: 10.3969/j.issn.0253-4975.2019.01.004
Zhijie Wei, Min Yang, Tongli Wang, Huiying Ge, Yanzhen Li, Bolin Li. A review on non-valcano tremor[J]. Progress in Earthquake Sciences, 2019, (1): 7-12. doi: 10.3969/j.issn.0253-4975.2019.01.004
Citation: Zhijie Wei, Min Yang, Tongli Wang, Huiying Ge, Yanzhen Li, Bolin Li. A review on non-valcano tremor[J]. Progress in Earthquake Sciences, 2019, (1): 7-12. doi: 10.3969/j.issn.0253-4975.2019.01.004

非火山震颤研究综述

doi: 10.3969/j.issn.0253-4975.2019.01.004
基金项目: 国家自然科学基金(41622402和41874063)共同资助。
详细信息
    通讯作者:

    杨旻,e-mail: 332832324@qq.com

  • 中图分类号: P315.6

A review on non-valcano tremor

  • 摘要: 非火山震颤是在远离火山地区观测到的一种具有较长持续时间,没有明显体波到时的地震波信号,与振幅相似的小震相比,非火山震颤的高频成分几乎没有。非火山震颤常在环太平洋俯冲带以及转换断层的板块交界面被探测到,并且有些非火山震颤伴随着慢地震,还能被远震面波诱发,但对于诱发非火山震颤所必需的环境尚不明确。中国是地震频发的国家,具有东南沿海俯冲带以及多个大断层构造环境,这就给国内非火山震颤的研究提供了非常充分的研究环境。本文对非火山震颤的研究历史进行了梳理,并综述其定义、识别、定位、成因以及研究现状。

     

  • 图  1  在圣安德烈斯断层观测到的持续时间为30 min的两个NVT事件[6]

    图  2  NVT全球分布示意图。图中白色五角星表示在过去探测到NVT的地区

    图  3  台湾南部地质特征截面图。NVT用红色五角星表示,红色和紫色实线分别表示闭锁区和自由滑动区,绿色实线表示在它们之间的一个过渡带,NVT就发生在过渡带[21]

    图  4  诱发NVT与面波的比较图[21]

    图  5  在卡斯卡迪亚观测的6年中NVT活动伴随着慢地震[2]

    图  6  上图表示P波速度与S波速度比值图,黑点表示普通地震定位,红点表示LFEs定位,下图表示基于速度比震源分布示意图,LFEs主要分布在具有高速度比的地区[4]

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出版历程
  • 收稿日期:  2017-12-06
  • 修回日期:  2018-05-23
  • 刊出日期:  2019-01-01

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