Cañasgordas Fault

Coordinates: 06°48′14″N 76°04′55″W / 6.80389°N 76.08194°W

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Cañasgordas Fault
Falla de Cañasgordas

Etymology	Cañasgordas
Coordinates	06°48′14″N 76°04′55″W / 6.80389°N 76.08194°W / 6.80389; -76.08194
Country	Colombia
Region	Andean
State	Antioquia
Cities	Dabeiba
Characteristics
Range	Western Ranges, Andes
Part of	Andean oblique faults
Length	54.8 km (34.1 mi)
Strike	316 ± 4
Dip	Southwest
Dip angle	High
Displacement	~0.01–0.1 mm (0.00039–0.00394 in)/yr
Tectonics
Plate	North Andean
Status	Inactive
Type	Oblique thrust fault
Movement	Reverse sinistral
Age	Quaternary
Orogeny	Andean

The Cañasgordas Fault (Spanish: Falla de Cañasgordas) is an oblique thrust fault in the department of Antioquia in northwestern Colombia. The fault has a total length of 54.8 kilometres (34.1 mi) and runs along an average northwest to southeast strike of 316 ± 4 in the Western Ranges of the Colombian Andes.

Etymology

The fault is named after the town of Cañasgordas.^[1]

Description

The Cañasgordas Fault is located to the northwest of the city of Medellín. The fault traverses most of the Western Ranges of the Colombian Andes between the towns of Dabeiba and Giraldo in the department of Antioquia. The Cañasgordas Fault probably joins the Mutatá Fault. The fault displaces Cretaceous sedimentary and volcanic rocks, Tertiary sedimentary rocks, and Quaternary mud flows. The fault forms strong linear features on satellite images and aerial photographs and controls the course of the Río Sucio, which has a prominent, linear V-shaped valley. Fault scarps are formed on Quaternary mud flows.^[1] The slip rate is estimated at 0.01 to 0.1 millimetres (0.00039 to 0.00394 in) per year deduced from offset of mud flows and the fault was probably active in the Late Pleistocene.^[2]

References

^ ^a ^b Paris et al., 2000, p.17
^ Paris et al., 2000, p.18

Bibliography

Paris, Gabriel; Machette, Michael N.; Dart, Richard L.; Haller, Kathleen M. (2000a), Map and Database of Quaternary Faults and Folds in Colombia and its Offshore Regions (PDF), USGS, pp. 1–66, retrieved 2017-09-18

Maps

Paris, Gabriel; Machette, Michael N.; Dart, Richard L.; Haller, Kathleen M. (2000b), Map of Quaternary Faults and Folds of Colombia and Its Offshore Regions (PDF), USGS, p. 1, retrieved 2017-09-18

Bagre Norte
Bucaramanga-Santa Marta (BSF)
Cimitarra
Cucuana
Eastern Frontal (EFS)
- Afiladores
- Algeciras
- Garzón-Pitalito
- Guaicáramo
- Guayuriba
- Mocoa
- San Pedro-Cumaral
- Servitá-Santa María
- Sibundoy
- Suazá
- Yopal
- Boconó
Mulato-Getudo
Oca
Otú Norte
Palestina
Romeral (RFS)

Intraterrane
faults

Chibcha	Bituima–La Salina Bogotá Caño Tomás Chitagá-Pamplona La Dina Honda Ibagué Irlanda La Macarena La Plata Suárez Tarra Usme Vianí
Tahamí	Espiritú Santo Uramita
Caribe	Abriaquí Argelia Bagre Norte Bahía Solano Cañasgordas Cauca Garrapatas Murindó Murrí Mutatá Montería Naya-Micay Piedrancha Remolino-El Charco Santa Rita El Tambor Toro Tucurá Unguía Urrao
La Guajira	Cuisa
Other terranes	Meta Dagua-Calima Guáitara Morronegro-Las Mercedes

Major
earthquakes

1646
1743
1785
1827
1834
1868
1875
1906
1917
1936
1958
1962
1967
1970 (1)
1970 (2)
1979 (1)
1979 (2)
1983
1987
1991
1992
1994
1995 (1)
1995 (2)
1996
1999
2004
2007
2008
2012
2013 (2)
2015
2016 (1)
2016 (2)

Orogenies

Etymology

Description

See also

References

Bibliography

Maps

Further reading