The economic cost of landslides in New Zealand is difficult to analyse as in major storms landslides generally occur in association with flooding. It is the flooding which has the immediate economic impact with sedimentation on the river flats. Whether the sedimentation results from landslide erosion or fluvial erosion cannot be distinguished accurately enough to allow analysis to be carried out. The immediate costs can be large, i. Landslides in urban environments are common in cut and fill situations with houses and roads being undercut or inundated with debris. The most significant urban landslide in New Zealand's history occurred in when the Abbotsford block slide, covering 18 ha, caused the destruction or removal of 14 houses in the Green Island Borough of Dunedin Table 2.
Rehabilitation Issues and Case Study of Kedarnath Landslide
Abbotsford landslip - Wikipedia
More than 50, people were killed by landslides around the world between and , according to a new study by researchers at the University of Sheffield. The team, which compiled data on more than 4, fatal landslides during the year period, also revealed for the first time that landslides resulting from human activity have increased over time. The team found that more than fatal landslides that occurred between and had a human fingerprint. Construction works, legal and illegal mining, as well as the unregulated cutting of hills carving out land on a slope caused most of the human-induced landslides. While the trend is global, Asia is the most affected continent.
The 1979 Abbotsford Landslide, Dunedin, New Zealand: a retrospective look at its nature and causes
It was the largest landslide in a built-up area in New Zealand's history, resulting in the destruction of 69 houses — around one sixth of the suburb — but no fatalities. The suburb of Abbotsford sits on the slopes of a hill in the southwest of Dunedin, separated from the main urban area by open semi-rural land. The larger suburb of Green Island sits on gentler slopes immediately to the south. Between the two lies the valley of the Kaikorai Stream and its tributary, Miller Stream. At the time of the slippage, Abbotsford was within Green Island Borough.
This list of landslides is a list of notable landslides and mudflows divided into sections by date and type. Volumes of landslides are recorded in the scientific literature using cubic kilometres km 3 for the largest and millions of cubic metres normally given the non-standard shortening of MCM for most events. From Wikipedia, the free encyclopedia. Wikimedia list article. United States Geological Survey.