International Journal of Geotechnical Earthquake Engineering, 5(2), 37-43, July-December 2014 37 Copyright © 2014, IGI Global. Copying or distributing in print or electronic forms without written permission of IGI Global is prohibited. ABSTRACT In this present paper, a circular failure surface passing through the toe is assumed for a homogeneous soil, and the Fellenius line is used to locate the centre of the most critical circle. Using limit equilibrium analysis under the infuence of static forces such as weight of potential slide mass and surcharge along with the pseudo-static seismic forces are considered to obtain the factor of safety of the slopes. Factor of safety is found through the application of force equilibrium. The effects of variation of different parameters like slope angle (i), soil friction angle (Φ) and seismic acceleration coeffcients both in the horizontal and vertical directions (k h and k v respectively) on the factor of safety are presented. Finally, the present results are compared to the existing solutions available in literature and found to give minimum values of factor of safety using the present ap- proach for seismic slope stability analysis. Pseudo-Static Analysis of Slope Considering Circular Rupture Surface Sima Ghosh, NIT Agartala, Agartala, India Keywords: Equilibrium Analysis, Fellenius Line, Pseudo-Static Seismic Forces, Slope Angle, Soil Friction Angle INTRODUCTION Failures are found to occur in both natural and man-made slopes. In the natural environment landslides occur frequently and they are a part of the ongoing evolution of landscape. More rarely failures occur in man-made earth slopes, which are designed specifically to resist the forces of nature. Particularly earthquake induced landslides have caused great amounts of damage and loss of life as found in the history. Hence, the seismic analysis of slope has gained tremendous importance in terms of research as the stable slopes under static con- dition become unstable during earthquakes. Although, different methods are available to analyze the stability of slopes under both the static and seismic conditions, but the complete solution for the seismic stability of slopes is still scarce. Some of the classical works carried out by researchers like Taylor (1937, 1948) for translation failure of slope on a planar failure DOI: 10.4018/ijgee.2014070103