Seismic observations in the DPRI 1800 m borehole drilled into the Nojima Fault zone, south‐west Japan
Seismic observations in the DPRI 1800 m borehole drilled into the Nojima Fault zone, south‐west Japan
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日本西南部野岛断层带 DPRI 1800 m 钻孔的地震观测
DOI：
10.1111/j.1440-1738.2001.00327.x
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发表时间：
2001
期刊：
影响因子：
1.5
通讯作者：
K. Tadokoro
中科院分区：
文献类型：
--
作者：
K. Nishigami;M. Ando;K. Tadokoro
摘要 在日本西南部野岛断层带的京都大学防灾研究所 (DPRI) 1800 米钻孔的三个深度安装了地震仪。与 DPRI 800 m 钻孔或地面记录的波形相比，这些地震仪记录的波形相当简单。这些数据应该非常适合检测断层带俘获波并估计断层带结构及其与破裂断层愈合过程相关的时间变化。 1995 年兵库县南部地震（神户地震）后不久，跨越野岛断层的表面地震阵列观测到了断层带中捕获的典型波形。然而，在DPRI 1800 m钻孔记录的波浪数据中，尚未发现断层带陷波的明确证据，进一步的研究仍在继续。本研究概述了 DPRI 1800 m 钻孔中的观测系统，这将使钻孔数据的获取和分析变得更加容易。
Abstract Seismometers were installed at three depths in the Disaster Prevention Research Institute, Kyoto University (DPRI) 1800 m borehole drilled into the Nojima Fault zone, southwest Japan. The waveforms recorded by these seismometers are rather simple compared with those recorded at the DPRI 800 m borehole or on the ground surface. These data should be well suited for detecting fault zone‐trapped waves and estimating the fault zone structure and its temporal variation related to the healing process of the ruptured fault. Typical waveforms trapped in the fault zone were observed by a surface seismographic array across the Nojima Fault just after the 1995 Hyogo‐ken Nanbu earthquake (Kobe earthquake). Among the wave data recorded in the DPRI 1800 m borehole, however, clear evidences of fault zone‐trapped waves have not yet been found, and further studies are continuing. The present study outlines the observation system in the DPRI 1800 m borehole, which will make it easier to access and analyze the borehole data.
日本野岛断层带观测到的注入地震和地震群
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
Tadokoro;K.
通讯作者：
K.