Articles | Volume 16, issue 2
Nat. Hazards Earth Syst. Sci., 16, 529–542, 2016
https://doi.org/10.5194/nhess-16-529-2016
Nat. Hazards Earth Syst. Sci., 16, 529–542, 2016
https://doi.org/10.5194/nhess-16-529-2016

Research article 24 Feb 2016

Research article | 24 Feb 2016

A Quaternary fault database for central Asia

Solmaz Mohadjer1, Todd Alan Ehlers1, Rebecca Bendick2, Konstanze Stübner1, and Timo Strube1 Solmaz Mohadjer et al.
  • 1Department of Geosciences, University of Tübingen, Tübingen, Germany
  • 2Department of Geosciences, University of Montana, Missoula, Montana, USA

Abstract. Earthquakes represent the highest risk in terms of potential loss of lives and economic damage for central Asian countries. Knowledge of fault location and behavior is essential in calculating and mapping seismic hazard. Previous efforts in compiling fault information for central Asia have generated a large amount of data that are published in limited-access journals with no digital maps publicly available, or are limited in their description of important fault parameters such as slip rates. This study builds on previous work by improving access to fault information through a web-based interactive map and an online database with search capabilities that allow users to organize data by different fields. The data presented in this compilation include fault location, its geographic, seismic, and structural characteristics, short descriptions, narrative comments, and references to peer-reviewed publications. The interactive map displays 1196 fault traces and 34 000 earthquake locations on a shaded-relief map. The online database contains attributes for 123 faults mentioned in the literature, with Quaternary and geodetic slip rates reported for 38 and 26 faults respectively, and earthquake history reported for 39 faults. All data are accessible for viewing and download via http://www.geo.uni-tuebingen.de/faults/. This work has implications for seismic hazard studies in central Asia as it summarizes important fault parameters, and can reduce earthquake risk by enhancing public access to information. It also allows scientists and hazard assessment teams to identify structures and regions where data gaps exist and future investigations are needed.

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Short summary
The Central Asia Fault Database is the first publicly accessible digital repository for active faults in central Asia and the surrounding regions. It includes an interactive map and a search tool that allow users to query and display critical fault information such as slip rates and earthquake history. The map displays over 1196 fault traces and 34 000 earthquake locations. The database contains attributes for 123 faults mentioned in the literature.
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