Córdoba-Navarco Fault
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The Córdoba-Navarco Fault ( es, Falla Córdoba-Navarco) is a sinistral
strike-slip fault In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic ...
in the
department Department may refer to: * Departmentalization, division of a larger organization into parts with specific responsibility Government and military *Department (administrative division), a geographical and administrative division within a country, ...
of Quindío in west-central
Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...
. The fault has a total length of and runs along an average north-northeast to south-southwest strike of 018.5 ± 4 in the
Central Ranges Central Ranges (code CER) is an Australian bioregion, with an area of 101,640.44 square kilometres (39,244 sq mi) spreading across two states and one territory: South Australia, Western Australia, and the Northern Territory.Andes. The fault segment pertaining to the megaregional
Romeral Fault System The Romeral Fault System ( es, Sistema de Fallas (de) Romeral) is a megaregional system of major parallel and anastomosing faults in the Cordillera Central (Colombia), Central Ranges of the Colombian Andes and the Cauca Basin, Cauca, Amagá Basin, ...
is a set of two faults that are active, causing the major
1999 Armenia earthquake The 1999 Armenia, Colombia earthquake occurred on 25 January 1999 at with an epicenter west south west of Ibagué, Colombia.
with approximately 1185 fatalities.


Etymology

The fault is named after
Córdoba and the Navarco River in Quindío.Paris et al., 2000a, p.25


Description

The fault section is formed by the Córdoba and Navarco Faults, which are eastern strands of Romeral Fault System, south of the city of Armenia. These faults lie within the epicenter area of the Armenia earthquake of January 25, 1999. The faults extend through sheared cataclastic and undeformed basaltic and sedimentary Cretaceous oceanic rocks, cropping out on the eastern slope of the
Central Ranges Central Ranges (code CER) is an Australian bioregion, with an area of 101,640.44 square kilometres (39,244 sq mi) spreading across two states and one territory: South Australia, Western Australia, and the Northern Territory.Córdoba Complex from the Quebradagrande Complex.Mapa Geológico de Quindío, 2000 Well preserved fault trace controls stream drainages. The Córdoba-Navarco Fault forms fault saddles and eroded fault scarps. Neotectonic features are not very outstanding. Slopes in this part of the Central Ranges are rather steep, so erosion rate is high. The fault terminates in the south against the
Ibagué Fault The Ibagué Fault ( es, Falla de Ibagué) is a major dextral slightly thrust fault, oblique strike-slip fault in the departments of Colombia, department of Tolima Department, Tolima in central Colombia. The fault has a total length of and runs al ...
.Paris et al., 2000b


Activity

On January 25, 1999 a major earthquake hit the capitals of Quindío, Armenia, and Risaralda,
Pereira Pereira (Portuguese and Galician for "pear tree") may refer to: People * Pereira (surname) Places *Brazil **Pereira (Bahia) (est. 1534) in the present-day Barra neighborhood of Salvador in Bahia **Pereira Barreto, municipality in São Paulo **Pe ...
. The earthquake had a moment magnitude of 6.1 and an intensity of X and occurred at a depth of . The natural disaster caused around 1185 casualties in central Colombia and was the strongest earthquake in 16 years.Various Authors, 1999, p.10


See also

* List of earthquakes in Colombia * Armenia Fault * Montenegro Fault


References


Bibliography

* *


Maps

* * {{DEFAULTSORT:Cordoba-Navarco Fault Seismic faults of Colombia Strike-slip faults Active faults Geography of Quindío Department Earthquakes in Colombia