The Ibagué Fault cross-cuts the central part of the Central Ranges and extends along a strike of approximately 070 to the east to the Middle Magdalena Valley. Along its trace it principally cuts Paleozoic metamorphic rocks of the Cajamarca Complex, the Jurassic age Ibagué Batholith (consisting of granodiorites, tonalites, granites, porphyrics of andesitic and dacitic composition and extrusive rocks as pyroclastic deposits and lava, Paleogene and Neogene sedimentary rocks of the Gualanday and Honda Groups and displacing and deforming the Neogene to Quaternary Ibagué Fan (), which is of volcano-sedimentary origin. The fault passes southeast of the Nevado del Ruiz and Cerro Machín volcanoes.