Abstract: In this paper, all the mobile leveling and baseline data across fault in the Capital circle area are processed with Four-point-slope information method, and synthesis is made for the data from different lines at some station. Based on the latitude and longitude of station (or site) and the sy nthetic data, information patterns of crustal deformation are given in series. The variation of these patterns is similar with that of clouds. It has certain significance for indicating the orientation of strong earthquakes with M≥6 nearthe Capital circle area.

Key words: Information synthesis, Fault deformation, Earthquake, Information pattern