The Revolutionary Government of Zanzibar has launched a tender for a multi-client 2D seismic survey in the deep offshore area to the east of the islands ahead of a licensing round planned for next year. A tender notice issued by the Zanzibar Petroleum Regulatory Authority (ZPRA) said the eastern deep offshore basin formed part of the East African Margin, covering 36,065.48km2 in water depths of 500-3,500 metres. The survey will involve acquisition of about 4,300 line km of long-offset 2D seismic data over 10x10km grids, as well as bathymetry, gravity and magnetic data.