A photograph of a crack in a paddock on the Greendale fault line.
A photograph of soil uplift in a paddock on the Greendale fault line.
A photograph of a crack in a paddock on the Greendale fault line.
A photograph of soil uplift in a paddock on the Greendale fault line.
A photograph of a fence on the Greendale Fault line which has been damaged by the 4 September 2010 earthquake. The wire has been pulled off the posts and is hanging loose. The ground has also shifted so the fence is no longer straight.
A photograph of a fence on the Greendale Fault line which has been damaged by the 4 September 2010 earthquake. The wire has been pulled off the posts and is hanging loose. The ground has also shifted so the fence is no longer straight.
A photograph of a fence on the Greendale Fault line which has been damaged by the 4 September 2010 earthquake. The wire has been pulled off the posts and is hanging loose. The ground has also shifted so the fence is no longer straight.
A photograph of damage to the ground of a paddock on the Greendale fault line.
A photograph of University of Canterbury Geology students surveying land on the Greendale fault line.
A photograph of damage to the ground of a paddock on the Greendale fault line.
A photograph of damage to the ground of a paddock on the Greendale fault line.
A photograph of damage to the ground of a paddock on the Greendale fault line.
A photograph of a section of road lying on the Greendale Fault line which has cracked due to the 4 September 2010 earthquake. In the distance, police tape and cones have been used to close off the road.
A photograph of people examining a section of road lying on the Greendale Fault line which has large cracks caused by the 4 September 2010 earthquake. Police tape and cones have been used to close off the road.
A photograph of a fence on the Greendale Fault line which has shifted considerably due to the 4 September 2010 earthquake. Police tape and cones have been placed across the road to close it off.
A photograph of people examining a section of road lying on the Greendale Fault line which has large cracks caused by the 4 September 2010 earthquake. Police tape and cones have been used to close off the road.
A photograph of people examining a section of road lying on the Greendale Fault line which has large cracks caused by the 4 September 2010 earthquake. Police tape and cones have been used to close off the road.
A photograph of a fence on the Greendale Fault line which has shifted considerably due to the 4 September 2010 earthquake. Police tape and cones have been placed across the road to close it off.
A photograph of people examining a section of road lying on the Greendale Fault line which has large cracks caused by the 4 September 2010 earthquake. Police tape and cones have been used to close off the road.
A photograph of a section of road lying on the Greendale Fault line which has shifted considerably and cracked due to the 4 September 2010 earthquake. In the distance, police tape and cones have been used to close off the road.
Rolleston, South Island, NZ
A map showing the extent of the Greendale fault trace.
A photograph of University of Canterbury Geology staff and students using ground penetrating radar (GPR) to survey land on the Greendale fault line.
A photograph of University of Canterbury Geology student Matt Cockcroft using ground penetrating radar (GPR) to survey land on the Greendale fault line.
A photograph of University of Canterbury Geology staff and students using ground penetrating radar (GPR) to survey land on the Greendale fault line.
A photograph of University of Canterbury Geology student Matt Cockcroft using ground penetrating radar (GPR) to survey land on the Greendale fault line.
One oblong perspex covered 3-D model of the fault plains associated with the 4 September 2010 Darfield earthquake; top of the model also acts as a map overlay. Geologists continue to study the 4 September 2010 earthquake and consider it is likely to have been a complex event with several faults rupturing simultaneously. This model provides one ...
A photograph of University of Canterbury Geology students Zach Whitman and Dewiyani Bealing using ground penetrating radar equipment to survey land on the Greendale fault line.
A photograph of University of Canterbury Geology staff and students using a dynamic cone penetrometer to measure soil strength of a paddock on the Greendale fault line.
The previously unknown Greendale Fault ruptured to the ground surface, causing up to 5 metres horizontal and 1 metre vertical permanent offset of the ground, during the September 2010 Darfield (Canterbury) earthquake. Environment Canterbury commissioned GNS Science, with help from the University of Canterbury, to define a fault avoidance zone and to estimate the fault recurrence interval. There is little evidence for past movement on the fault in the past 16,000 years. However, because of the uncertainties involved, a conservative approach was taken and the fault has been categorised as a Recurrence Interval Class IV fault (a recurrence interval of between 5,000 and 10,000 years). A PhD study by a University of Canterbury student will work towards refining the Recurrence Interval Class over the next three years. Taking a risk-based approach, the Ministry for the Environment Active Fault Guidelines recommend that normal residential development be allowed within the fault avoidance zone for faults of this Recurrence Interval Class, but recommends restrictions for larger community buildings or facilities with post-disaster functions. The report is assisting Selwyn District Council in granting consents for rebuilding houses on or near the Greendale Fault that were damaged by permanent distortion of the ground due to the fault rupture in the September 2010 earthquake. The report provides specific recommendations for building on or close to the Greendale Fault, which are being implemented by Selwyn District Council. See Object Overview for background and usage information.