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Mobile Apps
HK Landslides HK Landslides

Hong Kong is prone to landslides and has experienced many significant slope failures. To document the many notable historic landslide events in Hong Kong and as one of our public education initiatives, the Geotechnical Engineering Office (GEO) under Civil Engineering and Development Department of the Government of Hong Kong Special Administrative Region published the book “When Hillsides Collapse – A Century of Landslides in Hong Kong” in 2005. It also provides a visual reminder for the public the potential for landslides to wreak havoc in Hong Kong. The GEO produced the 2nd Edition in 2013. The content of the book has been expanded to include landslides in the two severe rainstorms in 2005 and 2008.

The pdf version of this e-book is available for downloading at :


To extend its accessibility to the public, this App is developed for free downloading its e-book version to tablet computers.

Download the app from the App Store

HKGeology HKGeology

The HKGeology gives a simplified account of the geology of Hong Kong and is a useful reference tool in field, which will help teachers, students, members of the public and geotechnical practitioners.

The application includes an interactive geological map and the description of major rock types and geological features that could be found in different parts of Hong Kong. You can locate yourself and find out the types of rock that you are standing on. The contents in this mobile application are based on the geology book “Hong Kong Geology – A 400 Million Journey” and a complete version can be found in the website of the Civil Engineering and Development Department of the Government of the Hong Kong Special Administrative Region.

The geological map of Hong Kong given in this application is based on the HGM100 series at a scale of 1:100 000 published by the Hong Kong Geological Survey. The digital topographic map is published by the Survey and Mapping Office of the Lands Department.

Download the app from the App Store or Google Play

HKSlopeSafety HKSlopeSafety

The HKSlopeSafety serves as a convenient platform for the public to look for the important information on slope safety in Hong Kong. With HKSlopeSafety, users can easily browse the information on slope safety, landslip warning and associated precautionary measures, slope maintenance and Dangerous Hillside Order.

This App provides a map service, in which contains the key information on all the 60,000 registered sizable man-made slopes in Hong Kong. You can also locate the registered slopes nearby you using the location-based function in your mobile device. Moreover, government slopes being upgraded or pending upgrading can be found.

It also includes a game for you to know more on slope safety (for tablet only).

Download the app from the App Store or Google Play