Preprints
https://doi.org/10.5194/essd-2023-119
https://doi.org/10.5194/essd-2023-119
06 Jun 2023
 | 06 Jun 2023
Status: this preprint is currently under review for the journal ESSD.

China Active Faults Database and its web system

Xiyan Wu, Xiwei Xu, Guihua Yu, Junjie Ren, Xiaoping Yang, Guihua Chen, Chong Xu, Keping Du, Xiongnan Huang, Haibo Yang, Kang Li, and Haijian Hao

Abstract. Active faults are potential destructive earthquake sources and also the most serious strips of earthquake disasters in the future. Studies and investigations of active faults are necessary for earthquake hazard reduction. This study presents a nation-scale database of the active faults for China and its adjacent regions along with associated web-based query system. This database is an updated version of the active faults data included in the “Seismotectonic Map of China and its Adjacent Regions (1:4 000 000),” which is one of the four essential maps of the mandatory Chinese standard GB/T 18306-2015 Seismic Ground Motion Parameter Zonation Maps of China. The data update and integration are based on the latest 20-year region-scale active fault survey data (1:250 000 – 1:50 000). Those data include geophysical probing, drill logging, offset-landform measuring and sample dating, as well as geometric and kinematic parameters of exposed and blind faults, paleo-earthquake sequences, and recurrence intervals, and have been obtained and analyzed using the same technical standard framework and reviewed by expert panels in the field and laboratory. The database can be interrogated using a Web Geographic Information System (GIS) application, which provides browsing, inquiring, analyzing, and downloading functions on a web browser. The system also publishes the Open Geospatial Consortium (OGC) Web Feature Service and OGC Web Map Service of active fault data. Users can add map layers and download fault data in the OGC-compliant GIS software for further analyses via these services. The Chinese government, research institutions, and companies have widely used the active faults data from the previous versions of the Database. The database is available at https://doi.org/10.12031/activefault.china.400.2022.db (Xu, 2022) and via the Web System (CEFIS (V2), 2023; CAFD WFS). It is downloadable through diverse platforms and clients as introduced in Sections 4.3.2 and 4.4.

Xiyan Wu, Xiwei Xu, Guihua Yu, Junjie Ren, Xiaoping Yang, Guihua Chen, Chong Xu, Keping Du, Xiongnan Huang, Haibo Yang, Kang Li, and Haijian Hao

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-2023-119', Anonymous Referee #1, 10 Aug 2023
    • EC1: 'Reply on RC1', Giulio G.R. Iovine, 11 Aug 2023
      • RC4: 'Reply on EC1', Anonymous Referee #1, 04 Sep 2023
    • AC1: 'Reply on RC1', Xiyan Wu, 02 Sep 2023
  • RC2: 'Comment on essd-2023-119', Kirsten Elger, 25 Aug 2023
    • CC1: 'Reply on RC2', Xiyan Wu, 02 Sep 2023
    • AC4: 'Reply on RC2', Xiyan Wu, 30 Oct 2023
  • RC3: 'Comment on essd-2023-119', Anonymous Referee #3, 30 Aug 2023
  • RC5: 'Comment on essd-2023-119', Anonymous Referee #1, 04 Sep 2023
Xiyan Wu, Xiwei Xu, Guihua Yu, Junjie Ren, Xiaoping Yang, Guihua Chen, Chong Xu, Keping Du, Xiongnan Huang, Haibo Yang, Kang Li, and Haijian Hao

Data sets

China Active Fault Database Xiwei Xu https://doi.org/10.12031/activefault.china.400.2022.db

Xiyan Wu, Xiwei Xu, Guihua Yu, Junjie Ren, Xiaoping Yang, Guihua Chen, Chong Xu, Keping Du, Xiongnan Huang, Haibo Yang, Kang Li, and Haijian Hao

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Short summary
This study presents a nation-scale active fault geodatabase for China and its adjacent regions along with the database’s web-based query system. It is an updated version of China Active Faults Database and integrates the latest 20-year region-scale active fault survey data (1:250 000–1:50 000). Its latest and previous versions have been widely used and verified in projects of government, research institutions, and companies.
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