摘要
On the basis of fracture mechanics earthquake rupture model, the relations between source parameters and (0, the value of tectonic ambient shear stress in the place where the earthquake occurs, have been derived. Thus, we can calculate a large number of values of tectonic ambient shear stress or values of background stress in the place where the earthquake occurs. If nuclear explosions are treated as earthquakes in the calculation, we find that (0 values of nuclear explosions have about 20 MPa, which is obviously higher than average (0 values of earthquakes with the same magnitude. This result can be used to discriminate nuclear explosions from earthquakes.
On the basis of fracture mechanics earthquake rupture model, Chen, et al. have derived relations between source parameters and τ 0 , the value of tectonic ambient shear stress in the place where the earthquake occurs. Thus, we can calculate a large number of values of tectonic ambient shear stress or values of background stress in the place where the earthquake occurs. If nuclear explosions are treated as earthquakes in the calculation, we find that τ 0 values of nuclear explosions have about 20 MPa, which is obviously higher than average τ 0 values of earthquakes with the same magnitude. This result can be used to discriminate nuclear explosions from earthquakes.
出处
《地震学报》
CSCD
北大核心
2001年第3期246-249,共4页
Acta Seismologica Sinica
基金
State Natural Science Foundation (49874010).
关键词
构造环境剪应力场
地震
核爆炸
应力场水平
震源参数
tectonic ambient shear stress field
earthquake
nuclear explosion
discrimination of nuclear explosions from earthquakes
level of stress field
