天马台断层活动与地震的关系

Relation between Fault Movements at Tianma Deformation Station and Earthquakes

利用1996～2008年天马台的定点跨断层场地的水准测量资料分析长乐—诏安断裂带的现今活动特征及其与地震的关系。结果表明:W-E测段活动速率最高,S-E测段活动速率次之,W-S测段活动速率最小。断层各段以压性逆断为主,与地质考察结果基本一致。同时讨论了断层活动与地震关系,认为3次准同步转折均与地震密切有关。

In this paper, we used fixed-point cross-fault leveling data of Tianma deformation station between 1996 and 2008 to analyze recent movement characteristics of Changle-Zhaoan fracture zone and its relation with earthquakes. The results show that the velocity of W-E survey- segment was largest, that of S-E survey-segment was minor, and that of W-S survey-segment was smallest. Most of faults are compressive reverses faults, generally consistent with geological survey results. Relation of fault movement at Tianma deformation station and earthquakes was also discussed, and three quasi-synchronous transitions of fault movement are believed to be closely related to earthquakes.