Construction of the Philippine Sea Plate model based on high-density seismic observation data analysis and large-scale computer simulation

基于高密度地震观测数据分析和大规模计算机模拟的菲律宾海板块模型构建

• 批准号: 23540490
• 负责人: TAKASHI Furumura
• 金额: $ 3.24万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23540490/
• 关键词: 地震現象; 地震動; 地殻構造; プレート; 南海トラフ地震; フィリピン海プレート; プレートモデル; 強震動; 地震

Preparing for expecting future Nankai-trough earthquake the understanding of the detailed structure of the subducting Philippine Sea Plate is an important subject in the context of prediction of the stress accumulative process in a plate boundary, and mitigation of strong ground motions and tsunami.For understanding the effect of heterogeneous structure of the Philippine Sea Plate on the development of strung ground motions radiating from the source at the top of the plate and guiding through the plate, this study was investigated from two viewpoints of study; 1) large-scale high-density computer simulation of seismic wave propagation using the Earth Simulator supercomputer, and 2) detailed analysis of dense seismic recordings of recent earthquakes obtained by high-density network in Japan.

为应对未来南海海槽地震做好准备，了解俯冲菲律宾海板块的详细结构是预测板块边界应力累积过程、减轻强地震动和海啸的一个重要课题。 研究从两个研究角度进行调查； 1）使用地球模拟器超级计算机对地震波传播进行大规模高密度计算机模拟，2）对日本高密度网络获得的近期地震的密集地震记录进行详细分析。

项目成果

Scattering of high-frequency P wavefield derived by dense Hi-net array observations in Japan and computer simulations for seismic wave propagations

日本密集 Hi-net 阵列观测得出的高频 P 波场散射和地震波传播的计算机模拟

• DOI: 10.1093/gji/ggs127
• 发表时间: 2013
• 期刊: Geophys. J. Int
• 作者: Takemura;S. and T. Furumura
• 通讯作者: S. and T. Furumura

High frequency waves guided by the subducted plates underneath Taiwan and their association with seismic intensity anomalies

台湾下方俯冲板块引导的高频波及其与地震烈度异常的关系

• DOI: 10.1002/jgrb.50071
• 发表时间: 2013
• 期刊: J. Geophys. Res.
• 作者: Chen;K.;B.L.N. Kennett and T. Furumura
• 通讯作者: B.L.N. Kennett and T. Furumura

Observations of Changes in Waveform Character Induced by the 1999 Mw7.6 Chi-Chi Earthquake

1999年Mw7.6集集地震波形特征变化观测

• DOI: 10.1029/2011gl049841
• 发表时间: 2012
• 期刊: Geophysical Research Letter
• 作者: Chen;K.;T. Furumura;J. Rubinstein;R.-J. Rau
• 通讯作者: R.-J. Rau

Reevaluation of the Nankai-trough earthquake linkage scenario and computer simulation of expected strong ground motion and tsunami

南海海槽地震联动情景的重新评估和预期强地震动和海啸的计算机模拟

• 发表时间: 2012
• 作者: Furumura;T
• 通讯作者: T

Small-scale heterogeneities in the oceanic lithosphere inferred from guided waves

从导波推断海洋岩石圈的小尺度异质性

• DOI: 10.1002/grl.50330
• 发表时间: 2013
• 期刊: Geophys. Res. Lett
• 作者: Shito;A.;D. Suetsugu;T. Furumura;H. Sugioka;and A. Ito
• 通讯作者: and A. Ito