Ashley Fault Avoidance Zone 2014

A “Fault Avoidance Zone” has been drawn based on the fault deformation areas. Any future development within this zone will be managed to reduce the risk of damage to buildings from the land breaking or buckling during an earthquake on the fault. The Fault Avoidance Zone only includes the “well-defined” and “distributed” deformation areas, because these are the areas where land damage is most likely. The Fault Avoidance Zone also includes a 20 metre buffer around the fault deformation areas, in case of any uncertainties in mapping the deformation areas, and to allow for the possibility of the fault deformation areas being larger in future earthquakes.

The Ministry for the Environment Guidelines for Building on or Close to Active Faults recommend that there are no restrictions on normal residential building on or near a fault with a recurrence interval of 5,000 to 10,000 years, like the Ashley Fault Zone. However, it does recommend some restrictions on building community facilities or important infrastructure near a fault with that level of activity. It is up to Waimakariri District Council and the community to decide what restrictions, if any, should apply within the Fault Avoidance Zone.Read the report here.

Data and Resources

Additional Info

Field Value
Theme {geospatial}
Author Canterbury Regional Council
Maintainer ECan GISTeam
Maintainer Email ECan GISTeam
Created 2016-09-18T20:30:08.000Z
Date modified 2018-05-22T03:58:21.000Z
Efficiency Type
Dollars Saved
Jurisdiction New Zealand
Language English
Spatial {"type": "Polygon", "coordinates": [[[172.4747, -43.2703], [172.6018, -43.2703], [172.6018, -43.2509], [172.4747, -43.2509], [172.4747, -43.2703]]]}
Source Identifier
Record created April 10, 2017, Last Updated July 23, 2018