The lineament dates to the Precambrian era and thus is much older than the East African Rift System. It probably extends northwest to Darfur in Sudan, perhaps along the Abu Gabra Rift, and perhaps southeast to the Lindi fault zone on the Indian ocean coast, passing through the Kilimanjaro and Elgon volcanic centers.
 Connection to East African rift system
The fault seems to have been partly reactivated during the Neogene in the section between the Albertine and Gregory rifts, and along its southern extension towards the Indian Ocean. The reactivated section of the Aswa lineament connects the eastern and western branches of the East African rift system. It seems also to truncate the Nyanza rift, which extends ENE from Lake Victoria. The section of the Aswa Dislocation between the two rifts forms part of the boundary between the Somali Plate and the African Plate.
- Cecchi, Giovanna; Zilioli, Eugenio (21 September 1998). "Combination of spaceborne radar interferometry (DEM) and Landsat TM imageries contributing to recent tectonic and geology studies in the Aswa lineament shear zone (Sudan)". The International Society for Optical Engineering. Retrieved 2012-04-04.
- Chorowicz, Jean; Le Fournier, Jacques; Vidal, Gerard (Winter 1987). "A model for rift development in Eastern Africa". Geological Journal 22 (Supplement S2). doi:10.1002/gj.3350220630. Retrieved 2012-04-04.
- Rach, Nina M. (1992). "Tectonic Controls on the Lake Victoria Basin". Basement tectonics 7: proceedings of the Seventh International Conference on Basement Tectonics, held in Kingston, Ontario, Canada, August 1987. Springer. ISBN 0792315820.
- Rosendahl, B. R. (1987). "Architecture of Continental Rifts with Special Reference to East Africa". Annual Review of Earth and Planetary Sciences 15. Bibcode:1987AREPS..15..445R. doi:10.1146/annurev.ea.15.050187.002305.
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