DEFORMATIONAL FEATURES IN THE RIVER BLUFFS AT TER, OSMANABAD DISTRICT, MAHARASHTRA - EVIDENCE FOR AN ANCIENT EARTHQUAKE

Deformational features developed on the sedimentary sections at Ter, O smanabad district in Maharashtra offer evidence for a spatially restri ctive, but a damaging earthquake in the vicinity. The seismogenic feat ures exposed in the sedimentary sections include flexures, warps, buck le folds and vertical offsets. Apparent trend of these structures sugg ests their formation under regional compressive stresses acting in the northeast-southwest direction. The radiocarbon age data obtained on t he carbonaceous materials from the section indicate that the causative processes must have occurred similar to 1500 years ago. These structu res, located 40 km northwest of Killari, the site of 1993 earthquake, add a new dimension to the question of spatio-temporal characteristics of earthquake generation in the Deccan Trap region.