Crustal structure and relocated earthquakes in the Puget Lowland, Washington, from high-resolution seismic tomography

2002 ◽  
Vol 107 (B12) ◽  
pp. ESE 22-1-ESE 22-23 ◽  
Author(s):  
T. M. Van Wagoner ◽  
R. S. Crosson ◽  
K. C. Creager ◽  
G. Medema ◽  
L. Preston ◽  
...  

2011 ◽  
Vol 187 (1) ◽  
pp. 303-326 ◽  
Author(s):  
Hrvoje Tkalčić ◽  
Youlin Chen ◽  
Ruifeng Liu ◽  
Huang Zhibin ◽  
Li Sun ◽  
...  


2021 ◽  
pp. 229012
Author(s):  
Xuelei Li ◽  
Zhiwei Li ◽  
Yufei Xi ◽  
Yutao Shi ◽  
Xiangteng Wang ◽  
...  


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Quan Sun ◽  
Shunping Pei ◽  
Zhongxiong Cui ◽  
Yongshun John Chen ◽  
Yanbing Liu ◽  
...  

AbstractDetailed crustal structure of large earthquake source regions is of great significance for understanding the earthquake generation mechanism. Numerous large earthquakes have occurred in the NE Tibetan Plateau, including the 1920 Haiyuan M8.5 and 1927 Gulang M8 earthquakes. In this paper, we obtained a high-resolution three-dimensional crustal velocity model around the source regions of these two large earthquakes using an improved double-difference seismic tomography method. High-velocity anomalies encompassing the seismogenic faults are observed to extend to depths of 15 km, suggesting the asperity (high-velocity area) plays an important role in the preparation process of large earthquakes. Asperities are strong in mechanical strength and could accumulate tectonic stress more easily in long frictional locking periods, large earthquakes are therefore prone to generate in these areas. If the close relationship between the aperity and high-velocity bodies is valid for most of the large earthquakes, it can be used to predict potential large earthquakes and estimate the seismogenic capability of faults in light of structure studies.



Author(s):  
Daria Zandomeneghi ◽  
Andrew Barclay ◽  
Javier Almendros ◽  
Jesús M. Ibañez Godoy ◽  
William S. D. Wilcock ◽  
...  


2019 ◽  
Author(s):  
V. Ignatev ◽  
A. Konkov ◽  
I. Polikarpov ◽  
A. Shuvalov ◽  
A. Oshkin


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