Seismotectonic Atlas (SEISAT) of India and its Environs is a compilation of multi-thematic data base comprising 43 maps (presented in 42 sheets; SEISAT 35 & 42 presented in a single sheet) of 30 x 40 size covering India and adjacent regions of neighbouring countries on 1 : 1 million scale. To present these maps in uniform shape and size and as effects of earthquakes are felt in adjacent regions as well, international boundaries are not depicted in the maps. ...