Automated detection of slow slip events within the Nankai subduction zone
Automated detection of slow slip events within the Nankai subduction zone
复制标题
南开俯冲带内慢滑移事件的自动检测
DOI：
10.1029/2010gl045899
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发表时间：
2011
影响因子：
5.2
通讯作者：
H. Hirose
中科院分区：
文献类型：
--
作者：
Takeshi Kimura;K. Obara;H. Kimura;H. Hirose
我们发展了一种新的自动化方法，用于识别和定位南开俯冲带幕式地震滑动(ETS)期间的慢滑事件(SSE)，而不需要任何地震信息。SSE模型是使用卡尔曼滤波算法和网格搜索从连续倾斜数据中估计出来的，并最终通过统计评估来识别。我们将这种方法应用于日本四国两年的记录数据，成功地检测到了4个与主震爆发相一致的SSE。在SSE发生之前，地震前兆小震活动通常发生在断层周围，当地震迁移到SSE断层时，SSE随后被检测到。这表明，ETS幕开始于主断层周围大地测量无法检测到的小滑动，并发展到可检测到的SSE。SSE和地震活动的这种演化反映了板块界面滑动性质的空间变化。
We have developed a new automated method for the identification and location of slow slip events (SSEs) during episodic tremor and slip (ETS) in the Nankai subduction zone without any tremor information. SSE models are estimated from continuous tilt data using the Kalman filter algorithm and a grid search, and are eventually identified through statistical evaluations. We applied this method to data recorded for two years in Shikoku, Japan and successfully detected four SSEs coincident with major tremor bursts. Before the onset of SSEs, precursory minor tremor activities usually occur around the fault where SSEs are subsequently detected when tremor migrates into the SSE faults. This suggests that an ETS episode begins with geodetically undetectable small slip around the main fault and grows to a detectable SSE. Such evolution of SSE and tremor activity would reflect the spatial change in the slip property on the plate interface.
影响因子：
3
作者：
Y. Okada
通讯作者：
Y. Okada
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