The Hualin fault is the quaternary active fault found in eastern Guangdong Province. The sediment bed cut by the fault is likely formed in the late Pleistocene. The fault strikes to 300°and inclines to northeast with an angle of 75°. Three subfractures converging downwards are found on the lower wall of the main fault

indicating a downward movement of the upper wall of the fault. The Quaternary fault cut into the basement with metamorphic rocks on its upper side and coarsegrained biotite granite on the lower

suggesting that the quaternary fault was generated by reactivation of the basement fracture after formation of the Quaternary sediments.