05 Oct 2021
05 Oct 2021
Status: a revised version of this preprint is currently under review for the journal ESSD.

The Database of the Active Faults of Eurasia (AFEAD): Ontology and Design behind the Continental-Scale Dataset

Egor Zelenin1, Dmitry Bachmanov1, Sofya Garipova1, Vladimir Trifonov1, and Andrey Kozhurin2,1 Egor Zelenin et al.
  • 1Geological Institute, Moscow, 119017, Russia
  • 2Institute of Volcanology and Seismology, Petropavlovsk‐Kamchatsky, 683006, Russia

Abstract. Active faults are those faults on which movement is possible in the future. It draws particular attention to active faults in geodynamic studies and seismic hazard assessment. Here we present a high-detail continental-scale geodatabase: The Active Faults of Eurasia Database (AFEAD). It comprises 46,775 objects stored in the shapefile format with spatial detail sufficient for a map of scale 1:1M. Fault sense, a rank of confidence in activity, a rank of slip rate, and a reference to source publications are provided for each database entry. Where possible, it is supplemented with a fault name, fault zone name, abbreviated fault parameters (e.g., slip rate, age of the last motion, total offset), and text information from the sources. The database was collected from 612 sources, including regional maps, databases, and research papers.

AFEAD facilitates a spatial search for local studies. It provides sufficient detail for planning a study of a particular fault system and guides deeper bibliographical investigations if needed. This scenario is particularly significant for vast Central and North Asia areas, where most studies are available only in Russian and hardcopy. Moreover, the database model provides the basis for GIS-based regional and continental-scale integrative studies.

The database is available at and via web map at (last access: July 30, 2021). Some database representations with supplementary data are hosted at

Egor Zelenin et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2021-312', Alessandro Tibaldi, 14 Oct 2021
    • AC1: 'Reply on RC1', Egor Zelenin, 08 Nov 2021
      • RC2: 'Reply on AC1', Alessandro Tibaldi, 08 Nov 2021
  • AC2: 'Comment on essd-2021-312', Egor Zelenin, 20 Dec 2021
    • AC3: 'Reply on AC2', Egor Zelenin, 21 Dec 2021
  • RC3: 'Comment on essd-2021-312', Anonymous Referee #2, 27 Dec 2021

Egor Zelenin et al.

Data sets

AFEAD v.2021 Bachmanov, D. M., Trifonov, V. G., Kozhurin, A. I. and Zelenin E. A.

Egor Zelenin et al.


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Short summary
Active faults are faults in the Earth's crust with a possible future slip. A slip at the fault will cause an earthquake, and it draws particular attention to active faults in tectonic studies and seismic hazard assessment. We present the Active Faults of Eurasia Database (AFEAD), a high-detail continental-scale geodatabase comprising 46,775 faults. Location, name, slip characteristics, and a reference to source publications are provided for database entries.