Three-dimensional crustal structure from dense seismic array

Three-dimensional crustal structure in the northern part of Eastern Taiwan from dense seismic array data sets

  1. Due to the dense ray coverage of body waves and seismic networks, we further apply both body wave tomography and joint inversion tomography of body and surface waves.

  2. Combined with the high resolution velocity models and the spacial distribution of these more complete aftershocks, our results clearly depict several local tectonic structures that have not been observed at the northern tip of the Longitudinal Valley, not only a suture but also a transitional area from collision to subduction.

鍾佩瑜 Pei-Yu Jhong
碩士論文:利用密集地震網探討花東縱谷北段地下速度構造
Master’s Thesis: Three-dimensional crustal structure in the northern part of Eastern Taiwan from dense seismic array data sets

High-Frequency Receiver Function Technique from Dense Seismic Array

Shallow Subsurface Structure Beneath the Northern Longitudinal Valley in Eastern Taiwan Using the High-Frequency Receiver Function from A Dense Seismic Array Data Set

  1. It is feasible to apply the high-frequency receiver function technique to dense ZLAND seismic array data to obtain the location of the main interfaces and the shallow structure.

  2. The thickness of the alluvium in the region could reach to the depth of approximately 200~300 meters.

  3. The distribution of the alluvium is matched with the old river channels of Mugua River and Hualien River.

蘇俊誥 Chun-Kao Su
碩士論文:利用密集地震網資料配合高頻接收函數法探討花東縱谷北段淺層構造
Master’s Thesis: Shallow Subsurface Structure Beneath the Northern Longitudinal Valley in Eastern Taiwan Using the High-Frequency Receiver Function from A Dense Seismic Array Data Set

3-D Vs ambient noise tomography from dense seismic array

3-D shear wave shallow crustal structures at Meishan fault zone using ambient noise tomography

  1. We present the results of 3-D shear wave shallow crustal velocity structure from ambient noise Rayleigh wave tomography with the data set of dense seismic array.

  2. The results of ambient noise tomography has finer resolution than previous studies from geophysical way.

Kuo-Chen, H., K.-X. Chen, W.-F. Sun, C.-W. Ho, Y.-H. Lee, Z.-K. Guan, C.-C. Kang, W.-Y. Chang (2017) 3D Vs ambient noise tomography in the source region of the 2016 Mw6.4 Meinong earthquake in Taiwan, Terrestrial, Atmospheric and Oceanic Sciences, doi:10.3319/TAO.2016.12.28.01

鄭璟郁 Ching-Yu Cheng
碩士論文:利用噪聲成像解析嘉義梅山斷層區域之三維淺層剪力波速度構造
Master’s Thesis: 3-D shear wave shallow crustal structures at Meishan fault zone using ambient noise tomography

Monitoring micro-earthquakes in active faults from dense seismic arrays

Monitoring micro-earthquakes in active faults from dense seismic arrays

  1. Microearthquakes were recorded by a dense seismic array near the Lishan fault of Taiwan.

  2. The Lishan fault is a high-angle left-lateral structure based on seismicity and focal mechanisms.

  3. The Lishan fault is an active structure from the surface to about 35 km.

Kuo-Chen, H., F. Wu, W.-L. Chang, C.-Y. Chang, C.-Y. Cheng, N. Hirata (2015) Is the Lishan Fault of Taiwan Active?, Tectonophysics, doi: 10.1016/j.tecto.2015.09.002.