Ledoksari Landslide

Ledoksari Landslide

LCI : IDN1503081101
Main Information
Landslide Name : Ledoksari Landslide
Latitude : 7:26:1 S
Longitude : 111:23:8 E
Location
City / District : Karanganyar
Province : Central Java
Country : Indonesia
Reporter
Reporter 1 : Tasdiq Hasan
Reporter 2 : Dwikorita Karnawati
Landslide Type
Material : Earth
Movement : Slide
Velocity (mm/sec) : Rapid
Depth (m) : Deep
Slope (degree) : Extremely Steep
Volume (m³) : Unknown
Date of Occurence
Date of Occurence : Dec 27, 2007
Other Information
Land Use Source area : Forest
Run-out/deposition area : Human settlement
Other Activity : Currently active
Triggering Factor : Rainfall
Death(s) & Missing : 65
Houses and other structural damage : 25
Photo of landslide : Ledoksari landslide.jpg
Google earth kmz file : Ledoksari Landslide.kmz
Plan of landslide : -
Cross section of landslide : Mechanism-Ledoksari.JPG
Reference (paper/report) : http://link.springer.com/article/10.1007/s11629-011-2107-6
Testing graph : -
Monitoring graph : -
Video of moving landslides including 3D simulation : -
Description :

Karanganyar and the surrounding area are situated in a dynamic volcanic arc region, where landslide frequently occurs during the rainy season. Indeed, the rain-induced landslide disasters have been resulting in 65 fatalities and a substantial socio-economical loss in last December 2007. Again, in early February 2009, 6 more people died, hundreds of people temporary evacuated and tens of houses damaged due to the rain-induced landslide. It was found that weathered andesitic-steep slope (steeper than 30o) was identified as the highest susceptible slope for rapid landslide, whilst the gentle colluvial slope with inter-stratification of tuffaceous clay-silt was found to be the susceptible slope for creeping. Finally, a programme for landslide risk reduction and control were developed with special emphasize on community-based landslide prevention and early warning system. It should be highlighted that the social approach needs to be properly addressed in order to guarantee the effectiveness of landslide risk reduction. Source: Karnawati, D., Fathani, T.F., Ignatius, S. et al. J. Mt. Sci. (2011) 8: 149. doi:10.1007/s11629-011-2107-6