In this study a pipeline buried gas under earthquake near field that has a switch viable are using Abaqus software are analyzed in this section by changing the depth of the buried pipe diameter and thickness of the pipe where the oil pipelines and gas Offshore, usually the starting point of transfer to the point of delivery of the product from the broad geographic active seismic pass. For unburied pipelines, seismic wave propagation time and permanent deformation of the Earth could be in the pipeline with respect to the geometry pipeline and structures attached to the devastation. Due to the large non-linear nature of the problem, finite element analysis tools for designing complete undersea pipeline under earthquake loading. In the present study the effects of consequences of earthquake motions of fault slip, normal, inverted, tilted down and diagonally normal and wave propagation resulting from the earthquake on pipelines offshore unburied located on the seabed in two modes of operation and operation of the line pipes and efficiency of the pipeline will be examined according to the criteria of operation in critical conditions studied. The effects of two types of soil, site location and the fixity of the end of the pipeline studied the behavior of the pipeline.