Abstract：Through the analysis of the ground incline observations in Shanxi area before and after Wenchuan\%M\%s8.0 earthquake, it is discovered that the ground incline migrated along the Longmenshan fault zone direction from northeast to southwest epicenter in Shanxi area before the Wenchuan earthquake, but after the earthquake the migration changed in the opposite direction and the average migration velocity is 3-4 kilometers/day approximately.By further analysis,it is believed that before the earthquake the migration of ground incline in Shanxi area to the center of Wenchuan Ms8.0 earthquake possibly plays the trigger action, but after the earthquake, the migration of ground incline to the distant field may be the main cause to induce a series strong aftershocks in the border of Shanxi,Gansu and Sichuan province.
Zhang Chuangjun ,and Niu Anfu . ANALYSIS OF MIGRATION CHARACTERISTICS OF TILT INCLINE IN SHAANXI AREA BEFORE AND AFTER WENCHUAN Ms8.0 EARTHQUAKE[J]. jgg, 2009, 29(增刊): 11-14.
