The Cimitarra Fault () is a sinistral oblique thrust fault located in the departments of Antioquia, Bolívar, and Santander in central Colombia.
The fault extends for approximately , trending in a general northeast to southwest direction, with an average strike of 323° ± 3°. It traverses the Middle Magdalena Valley and the Central Ranges of the Colombian Andes.
Etymology The fault is named after the Cimitarra River, Antioquia, a left tributary of the Magdalena River.Paris et al., 2000a, p.30
Description The Cimitarra Fault splays from the Palestina Fault in a northeasterly direction on the eastern border of the Central Ranges of the Colombian Andes, passes north of Barrancabermeja,Paris et al., 2000b and possibly connects to the Bucaramanga-Santa Marta Fault in the northeast.Plancha 5-06, 2015 The fault displaces Jurassic to Cretaceous volcanic rocks, Mesozoic igneous rocks, a Tertiary erosion surface in the Central Ranges, and late Quaternary sediments. Portions of the fault are pre-Pliocene in age, since it is locally covered by undeformed Pliocene sediments. Farther northeast, the fault is overlain by young alluvial deposits of the Middle Magdalena Valley.
The fault is marked by well preserved fault scarps, long straight traces, displaced drainages, and it forms aligned river courses. The slip rate is calculated at per year.Paris et al., 2000a, p.31
See also
List of earthquakes in Colombia El Bagre Fault Honda Fault Ibagué Fault Geology of Colombia Romeral Fault System Magdalena River Andean orogeny
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