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首页> 外文会议>International Symposium on Earthquake and Disaster Mitigation >Source Mechanism Analysis of Central Aceh Earthquake July 2, 2013 Mw 6.2 Using Moment Tensor Inversion with BMKG Waveform Data
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Source Mechanism Analysis of Central Aceh Earthquake July 2, 2013 Mw 6.2 Using Moment Tensor Inversion with BMKG Waveform Data

机译：2013年7月2日亚齐地震的源机制分析2013年7月2日MW 6.2利用BMKG波形数据的时刻张量反转

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摘要

The source mechanism of earthquake on July 2, 2013 was investigated by using moment tensor inversion. The result also compared by the field observation. Five waveform data of BMKG's seismic network used to estimate the mechanism of earthquake, namely ; KCSI, MLSI, LASI, TPTI and SNSI. Main shock data taken during 200 seconds and filtered by using Butterworth band pass method from 0.03 to 0.05 Hz of frequency. Moment tensor inversion method is applied based on the point source assumption. Furthermore, the Green function calculated using the extended reflectivity method which modified by Kohketsu. The inversion result showed a strike-slip faulting, where the nodal plane strike/dip/rake (124/80.6/152.8) and minimum variance value 0.3285 at a depth of 6 km (centroid). It categorized as a shallow earthquake. Field observation indicated that the building orientated to the east. It can be related to the southwest of dip direction which has 152 degrees of slip. As conclusion, the Pressure (P) and Tension (T) axis described dominant compression is happen from the south which is caused by pressure of the Indo-Australian plate.
机译：利用时刻张量反转研究了2013年7月2日的地震源机制。结果也通过现场观察进行了比较。 BMKG地震网络的五个波形数据用于估计地震机制，即; KCSI，MLSI，LASI，TPTI和SNSI。主要震动数据在200秒内采取，并通过使用0.03至0.05Hz的Butterworth带通方法过滤。基于点源假设应用时刻张量反转方法。此外，使用由Kohketsu修改的扩展反射率方法计算的绿色功能。反转结果显示了防滑故障，其中节点平面冲击/倾斜/耙（124 / 80.6 / 152.8）和最小方差值为0.3285，深度为6km（质心）。它分为浅地震。现场观察表明，建筑面向东方。它可以与倾角方向的西南有关，该方向具有152度的滑动。总之，压力（P）和张力（T）轴描述了主导压缩，从南部发生，这是由印度澳大利亚板的压力引起的。

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