The earthquake on the coast of Putian, with the magnitude of 7. 6, took place 2855±273 years BP. The causative fault which strikes N 55°-65°E is a right - lateral and strike -slide fault with a horizontal throw of 3. 9 m.
The earthquake on the coast of Putian, with the magnitude of 7. 6, took place 2855±273 years BP. The causative fault which strikes N 55°-65°E is a right - lateral and strike -slide fault with a horizontal throw of 3. 9 m.
Based on correlation of horizontal dislocation with the length of betrunked gulch, it is proposed that the active Ertai Fault had ruptured 5 times since Holocene.
When horizontal distance of faults are very small and wave shape of seismic records near the faults are very similar, coherency method can not show the faults clearly itself.
The distribution of arrival times of cosmic ray particles has been investigated with two spark counters (horizontal separation 20 cm) and an auxiliary layer of Geiger-Mueller counters.
With increasing retinal eccentricity there is a gradual decrease in this horizontal separation as well as progressive changes in the local receptive field disparities.