Landslides that consist of a few relatively intact blocks of rock or soil that move together. The basal failure surface of most of these slides is several meters or tens of meters below the land surface
Montana Bureau of Mines and Geology (MBMG), Earthquake Studies Office, Glossary of Earthquake Terms, MT, USA 2012. http://mbmgquake.mtech.edu/glossary.html, (ND/ Erthq - Amer) {136}