Shallow episodic tremor near the Nankai Trough axis off southeast Mie prefecture, Japan
Shallow episodic tremor near the Nankai Trough axis off southeast Mie prefecture, Japan
复制标题
日本三重县东南部南海海槽轴线附近发生浅层阵发性震颤
DOI：
10.1002/2017gl073006
复制
发表时间：
2017
影响因子：
5.2
通讯作者：
A. Katsumata
中科院分区：
文献类型：
--
作者：
S. Annoura;T. Hashimoto;Noriko Kamaya;A. Katsumata
我们分析了密集海底地震和海啸网络系统的长期连续地震记录（2015年9月至2016年4月），这是一个部署在南海俯冲带弧前斜坡周围的海底观测系统，用于调查槽轴附近的浅层地震。我们发现，浅震活动集中在两个时间段：2015年10月的6天和2016年4月的2周。在2016年4月的发作期间，观察到震颤的迁移和触发。这些特征与俯冲带深部的地震特征相似。地震的触发表明，在本研究区，地震活动是非常敏感的附近的应力扰动，这是附近的大地震的发震点沿着南开海槽。因此，监测该地区的地震动活动对了解大逆冲断层地震的应力积累过程具有重要意义。
We analyzed long‐term continuous seismic records (from September 2015 to April 2016) of Dense Ocean‐floor Network System for Earthquake and Tsunamis, an ocean‐floor observation system deployed around the fore‐arc slope of the Nankai subduction zone to investigate shallow tremor near the trough axis. We found that the activity of shallow tremor was concentrated in two time periods: 6 days in October 2015 and 2 weeks in April 2016. During the episode in April 2016, migration and triggering of tremor were observed. These characteristics are similar to those of tremor in the deeper part of the subduction zone. The triggering of tremor indicates that the tremor activity is very sensitive to nearby stress perturbation in the area of this study, which is near the initiation points of past large earthquakes along the Nankai Trough. Therefore, it is very important to monitor tremor activity in this region for understanding the stress accumulation process of megathrust earthquakes.
影响因子：
64.8
作者：
Ide, Satoshi;Beroza, Gregory C.;Uchide, Takahiko
通讯作者：
Uchide, Takahiko
H.264编码器DCT的硬件实现及其评估
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
Choong Geun Lee;V. G. Moshnyaga and K. Hashimoto;宮田康治
通讯作者：
宮田康治
影响因子：
56.9
作者：
Obara, K
通讯作者：
Obara, K