The fault has a total length of 21.2 kilometres (13.2 mi) and runs along an average north-northeast to south-southwest strike of 018.5 ± 4 in the Central Ranges of the Colombian Andes.

The faults extend through sheared cataclastic and undeformed basaltic and sedimentary Cretaceous oceanic rocks, cropping out on the eastern slope of the Central Ranges of Colombia.

[3] On January 25, 1999, a major earthquake hit the capitals of Quindío, Armenia, and Risaralda, Pereira.

[4] The natural disaster caused around 1185 casualties in central Colombia and was the strongest earthquake in 16 years.

[5] Gómez Tapias, Jorge; Montes Ramírez, Nohora E.; Almanza Meléndez, María F.; Alcárcel Gutiérrez, Fernando A.; Madrid Montoya, César A.; Diederix, Hans (2015).