The Indoburman arcuate system represents a conspicuous boundary between the Indian and the Burmese plates and are characterised by frequent occurrences of shallow and intermediate depth earthquakes. NOAA data file from 1906 to 1987 are used for the present study. The geologic features and seismic activity suggest a strikingly analogous envir onment of island arc system. A well defined Benioff zone dipping approximately 45°E upto a depth of about 150 km is well illustrated by the depth sections perpendicular to the arc. The seismic activity below and above 25°N Lat. exhibits striking difference. Increased seismic activity of both shallow and intermediate foci earthquake in the Manipur sector suggest active subduction processes. Reduced seismic activity in the, Nagaland sector is a manifestation of a gradual attainment foci of maturity after collision. An increased occurrence of intermediate earthquakes within the Lat. 24.8°-25.2°N points to unusual condi- tion over there. Mare or less aseismic nature of the Arakan Yoma sector needs further investigation. A complex pattern of ‘focal mechanism is typical of a collision zone. However, predominance of strikeslip mechanism bear the imprints of northward movement of the Indian plate with a drag of the slab in the process. A complex geometry of the slab is also evident from the probable HTS analysis.