soil creep

The long-period events before earthquakes have been theoretically demonstrated by fault creep before earthquakes,silent and slow earthquakes,fracture pre-pro.

理论上对地震前长周期事件已给出了许多论证 ,例如 ,震前的断层蠕动、静地震与慢地震、断层的断裂预扩展和地震成核等。