Usme Fault
seismic fault named after Usme
The Usme Fault (Spanish: Falla de Usme) is a dextral oblique normal fault in the department of Cundinamarca in central Colombia. The fault has a total length of 64.9 kilometres (40.3 mi) and runs along an average north-northeast to south-southwest strike of 022.7 ± 6 in the Eastern Ranges of the Colombian Andes.
Etymology
The fault is named after Usme, southern locality of the Colombian capital Bogotá.
Description
The Usme Fault is located in the Eastern Ranges of the Colombian Andes, south of Bogotá and extends along the western margin of the Tunjuelo River valley. The fault underlies the Sumapaz Páramo. The fault displaces Cretaceous and Tertiary rocks as well as Quaternary alluvial and glacial (moraine) deposits.
The fault valley shows features suggesting a half-graben with a steep slope wall on the west and low-angle slope on the east. The fault forms a steep, prominent circa 40 metres (130 ft) high east-facing scarp on Cretaceous rocks that show initial development of triangular facets. The hanging valleys have Quaternary alluvial deposits on the western uplifted block. The scarp forms the western wall of a narrow and long valley.
The public source identifies “Usme Fault” as seismic fault named after Usme. This brief keeps that definition visible, then builds a research path around Usme, Fault and seismic.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 18, 2026. The linked authority identifier is Q55074709. Authority coordinates are 4.334, -74.203. None of the 1 selected statements returned an explicit reference.
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This entry incorporates text from “Usme Fault” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.