Volcanic Earthquakes and Tremor at Kilauea Volcano : Source Mechanisim in Relation to Volcano Structure Eruptive Processes

基拉韦厄火山的火山地震和震颤:与火山结构喷发过程相关的震源机制

基本信息

  • 批准号:
    08041098
  • 负责人:
  • 金额:
    $ 5.18万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for international Scientific Research
  • 财政年份:
    1996
  • 资助国家:
    日本
  • 起止时间:
    1996 至 无数据
  • 项目状态:
    已结题

项目摘要

The cooperative experiment with U. S. volcanologists was conducted around the summit area of Kilauea volcano, Hawaii. Over a five day period three seismic antennas, three temporary broadband stations added to the seven permanent broadband stations, and a 120-component seismic reflection line were installed. During the experiment, Kilauea Volcano was undergoing an unusual period of seismic activity associated with a protracted transient in 10-year-long Puu Oo eruption. Analyzing the data of this experiment, some features of the seismic events are clarified as are summarized below.The crustal deformation accompanied with the very-long period pulses was observed. Particle motion plots for the pulses indicate that the source of these signals originated near the north rim of the summit crater. Since the crustal deformation is thought to be caused by the magma activities just blow the crater, the very-long-seismic signals may be related to the magma activities. The source mechanism of the crustal deformation and the seismic pulses will be clarified by the detailed analysis of the data newly obtained by the broadband stations.During the experiment, many volcanic earthquakes were observed. Frequency-slowness array analyses of volcanic signals by way of MUSIC method present that the signals came from the summit crater. Precise analyses of the data with the seismic antennas will show the detailed nature of the waveforms of the seismic events and the underground structure below the summit area.
与美国的合作实验。S.火山学家在夏威夷的基拉韦厄火山山顶附近进行了一次调查。在五天的时间里,安装了三个地震天线,在七个永久宽带站的基础上增加了三个临时宽带站,以及一条120分量的地震反射线。在实验期间,基拉韦厄火山经历了一段不寻常的地震活动时期,这段时期与长达10年之久的Puu Oo火山爆发的长期短暂现象有关。通过对实验数据的分析,阐明了地震事件的一些特征,并观察到了伴随着超长周期脉冲的地壳形变。脉冲的粒子运动图表明,这些信号的来源来自山顶陨石坑的北缘附近。由于地壳形变被认为是由火山口附近的岩浆活动引起的,因此超长地震信号可能与岩浆活动有关。通过对宽频带台站新获得的数据进行详细分析,将弄清地壳形变和地震脉冲的震源机制。在实验期间,观测到了许多火山地震。利用MUSIC方法对火山信号进行频慢度阵列分析,表明火山信号来自山顶火山口。对地震天线数据的精确分析将显示地震事件波形的详细性质和山顶地区以下的地下结构。

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
S. R. McNutt: "Kilauea volcano provides hot seismic data for Joint Japanese-U. S. Experiment"EOS, Transactions, American Geophysical Union. Vol.78;No.10. 105-111 (1997)
S. R. McNutt:“基拉韦厄火山为日美联合实验提供了热地震数据”EOS,Transactions,美国地球物理联盟。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
S. R. McNutt: "Kilauea volcano provides hot seismic data for Joint Japanese-U.S. Experiment"EOS, Transactions, American Geophysical Union. Vol.78, No.10. 105-111 (1997)
S. R. McNutt:“基拉韦厄火山为日美联合实验提供了热地震数据”EOS、Transactions、美国地球物理联盟。
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    0
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IDA Yoshiaki其他文献

IDA Yoshiaki的其他文献

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{{ truncateString('IDA Yoshiaki', 18)}}的其他基金

Dynamics of Volcanic Explosion
火山爆发动力学
  • 批准号:
    14080101
  • 财政年份:
    2002
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas
Study of source mechanism of volcanic earthquake and volcanic tremor revealed by broadband seismic observations
宽带地震观测揭示的火山地震及火山颤震震源机制研究
  • 批准号:
    12640403
  • 财政年份:
    2000
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Source mechanism of volcanic tremor revealed by waveform analyzes and fluid-dynamic experiments
波形分析和流体动力学实验揭示火山震源机制
  • 批准号:
    07640547
  • 财政年份:
    1995
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Volcanic Earthquakes and Tremor at Kilauea Volcano. Hawaii-Their Source Mechanisms
基拉韦厄火山的火山地震和震颤。
  • 批准号:
    06041024
  • 财政年份:
    1994
  • 资助金额:
    $ 5.18万
  • 项目类别:
    Grant-in-Aid for international Scientific Research

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