437 digital seismic events recorded by the Zhejiang Digita! Seismic Network in Zhejiang and its adjacent area from February 2006 to April 2010 underwent a shock acquaintance and positioning. 291 events with clear phases recorded by 4 stations were screened out through the double difference earthquake location method for accurate positioning and multiple event internal distance between events was obtained. The results show that the repositioning of seismic source relative position is more accurate than conventional seismic location method. In addition this paper obtains accurate moving images of regional earthquake sequences, and according to the new positioning results discusses the distribution of earthquake and relationship between seismogenic structure and fracture. The conclusion shows a good consistency.[著者文摘]