Session I :
Micro-physics underlying earthquake nucleation and frictional behavior of complex fault zones : observations and simulation

2nd ACES (APEC Cooperation for Earthquake Simulation) Workshop in Japan



Experimental study of seismic short-imminent precursory mechanismby new methods and technique
Zhao-Yong Xu, Run-Hai Yang, Jin-Ming Zhao, Yun-Yun Wang, Pei-Lin Li, Bin Wang, Shi-Rong Mei, Bing-Heng Xiong, Zheng-Rong Wang, Xiao-Xu Lu, Li-Yun Zhong, Yon-Gan Zhang, Can-Lin She


Abstract

The new instrument and technology and methods have been used in study of fracture phenomenon. A multi-functional high-frequency seismometer (0.5Hz-20KHz) and high-speed strainmeter are used to study burst strain disturbance and Short-imminent precursor and precursor in far field. The real-time holographic and caustic method are used to study the process and nature of micro-cracks nucleation, at the same time transient wave recorder is used to study feature of micro-crack and relativity of precursor with slow earthquake. These initial results are described in this paper.

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