Irelands mass wasting hazard

 ​​​​​​​​The term "landslide" describes a wide variety of processes that result in the downward and outward movement of materials under the force of gravity; this includes materials like rock, debris, earth, mud and peat, or a combination of these.  Ireland's location, terrain and climate result in landslides occurring mainly in areas with steep slopes where rock meets the surface and peat covers the terrain.

Landslides have the potential to cause great havoc, and have done so all around the world. They have resulted in massive loss of life and damage to infrastructure. Landslides can damage roads, railways, canal embankments, and cause dams to fail. They can destroy or severely damage buildings of all types – housing, commercial or industrial property. Rivers can become blocked or diverted by sediment or rock displaced by landslides.

The consequences of this can include flooding, pollution of watercourses and the killing of fish stocks. Agricultural land can be sterilised in the short to medium term. It does not require spectacularly huge landslide events to cause serious disruption or loss of life. Relatively small landslides in terms of the volume of material displaced can damage bridges and roads, and also cause injury and death. These potential impacts of landslides, irrespective of their size, mean that the scale of the problem for Ireland in the past and into the future needs serious attention so that the susceptibility of the Irish landscape to slope instability can be properly assessed. Ireland is fortunate not to be in an extreme high risk to major geohazards. Indeed, in comparison to many other countries, Ireland may be regarded as a medium hazardous environment in terms of landslide hazard. 

The Irish Landslides Group (ILWG) was established in early 2004 as a direct response to the landslides in the autumn of 2003. It was felt important that it should be a multi-disciplinary team, bringing together various types of expertise which are relevant to landslide studies. 

Main objectives:-

1. Build a national database of past landslide events

2. Examine geotechnical parameters with regard to landslides.

3. Assess the potential for landslide susceptibility mapping in Ireland.

4. Make recommendations on the integration of landslide hazard issues into the planning process.

5. Promotion of landslide research in Ireland.

6. Raise public awareness about landslide hazard in Ireland.

Links and sources:

https://www.gsi.ie/en-ie/programmes-and-projects/geohazards/activities/Pages/Irish-Landslides-Working-Group.aspx

https://www.thinkhazard.org/en/report/119-ireland/LS