{"id":32413,"date":"2019-10-09T07:01:35","date_gmt":"2019-10-09T07:01:35","guid":{"rendered":"https:\/\/blogs.agu.org\/landslideblog\/?p=32413"},"modified":"2019-10-09T07:01:35","modified_gmt":"2019-10-09T07:01:35","slug":"whanganui-landslide-1","status":"publish","type":"post","link":"https:\/\/blogs.agu.org\/landslideblog\/2019\/10\/09\/whanganui-landslide-1\/","title":{"rendered":"Whanganui: a large landslide on State Highway 4 in New Zealand"},"content":{"rendered":"

Whanganui: a large landslide on State Highway 4 in New Zealand<\/h4>\n

Late last week a large landslide developed on State Highway 4<\/a> between Whanganui and Raetihi in Ruapehu district of New Zealand<\/a>.\u00a0 The landslide, which reportedly has been developing for some time, has destroyed the road, causing considerable local disruption.\u00a0 A local photographer, Mark Brimblecombe<\/a>, collected a series of images of the landslide via a drone at the weekend.\u00a0 These stunning images capture the size and scale of the failure beautifully.<\/p>\n

This image is a good view of the scale of the landslide and the level of damage that it has caused:-<\/p>\n

\"Whanganui

The full scale of the landslide near Whanganui in New Zealand. Image captured by Mark Brimblecombe, posted to Facebook<\/a>.<\/p><\/div>\n

.<\/p>\n

Meanwhile this image shows a different view of the extent of the landslide:-<\/p>\n

\"Whanganui

A panoramic view of the landslide near Whanganui in New Zealand. Image captured by Mark Brimblecombe, posted to Facebook<\/a>.<\/p><\/div>\n

.<\/p>\n

Note the total destruction of the section of road and also the extent of the tension cracks up the slope (see below), especially on the left hand side.\u00a0 Also worth noting is the landscape in the distance on the far left side – this shows the distinctive features of a potential ancient, now inactive landslide.<\/p>\n

I noted above the full extent of the tension cracks extending up the slope.\u00a0 This image, also captured by Mark, shows this in more detail:-<\/p>\n

\"Whangaui

Tension cracks towards the rear of the landslide near Whanganui in New Zealand. Image captured by Mark Brimblecombe, posted to Facebook<\/a>.<\/p><\/div>\n

.<\/p>\n

These image suggest that there is a significant volume of material still to be released in this landslide.\u00a0 Reconstructing the road is going to be a very substantial challenge given the magnitude of the landslide, and the volume of partially failure material. To give an idea of the scale of the disruption, RNZ reports that<\/a>:<\/p>\n

“For local logging truck company, McCarthy Transport, the detour was adding an extra 130 to 200 kilometres to their trip, the company’s chief executive Steve McDougall said.”<\/em><\/p>\n

Acknowledgements<\/h4>\n

Many thanks to those people who highlighted this to me.\u00a0 My blog really depends on the community effort in which people highlight such events, so your help is really appreciated.\u00a0 Thanks also to Mark Brimblecombe<\/a> for both collecting the images and for sharing them so openly.\u00a0 They are magnificent.<\/p>\n","protected":false},"excerpt":{"rendered":"

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