Sunkoshi landslide

Sunkoshi landslide

LCI : NPL1612061032
Main Information
Landslide Name : Sunkoshi landslide
Latitude : 27:46:14.64 N
Longitude : 85:52:6.48 E
Location
City / District : Sindhupalchok
Province : Sindhupalchok
Country : Nepal
Reporter
Reporter 1 : Pham Tien
Reporter 2 :
Landslide Type
Material : Rock, Complex
Movement : Slide
Velocity (mm/sec) : Extremely Rapid
Depth (m) : Deep-Moderate
Slope (degree) : -
Volume (m³) : Large
Date of Occurence
Date of Occurence : Aug 02, 2014
Other Information
Land Use Source area : Forest, Human settlement
Run-out/deposition area : Road, River
Other Activity : Active in the past
Triggering Factor : Rainfall
Death(s) & Missing : 156
Houses and other structural damage : Sunkoshi hydropower dam , highway
Photo of landslide : Sunkoshi landslide taken by MOI, Nepal, 2014.JPG
Google earth kmz file : Sunkoshi landslide.kmz
Plan of landslide : GIS map showing Tracks and Location of study points and the landslide area by MOI, 2014.JPG
Cross section of landslide : -
Reference (paper/report) : Report on Jure Landslide, Mankha VDC, Sindhupalchowk District, Nepal Government Ministry of Irrigation, August 24, 2014, 29 pages in English. Available at http://www.sabo-int.org/case/2014_aug_nepal.pdf and A report by DpNET. Available at http://dpnet.org.np/docs/reportManagement/c1177e6cb4970cf8b32f2a789a05d67c.pdf
Testing graph : -
Monitoring graph : -
Video of moving landslides including 3D simulation : -
Description :

The Jure landslide or the Sunkoshi landslide, a deep-seated catastrophic landslide was triggered by a heavy rainfall at 02:36 AM on Saturday morning, 2 August 2014 in Jure Village, Sindhupalchowk District, Nepal. The huge landslide claimed 156 people, caused a seriously damages to tens of house. The landslide created a rapidly massive wave of about 100 meter towards the opposite bank of the river, which destroyed the forest area on the left bank of Sunkoshi River with a height of 100 m. The landslide velocity was estimated from 60 to 70m per second and it completely dammed the river within about 2 – 3 minutes. The catastrophic landslide also resulted in a local quake of 3.3 magnitudes. In addition, the large volume of debris about 7.4 million cubic meters blocked the Sunkoshi River and created a dam that is about 3 km long, 300 to 350 m width and 46.7 m depth. The deposited materials damaged the two gates of the Sunkoshi hydropower dam by the pressurized surging of the mud and debris. The outburst discharge and the dam breach took place on 7 September 2014. Sources: – Report on Jure Landslide, Mankha VDC, Sindhupalchowk District, Nepal Government Ministry of Irrigation, August 24, 2014, 29 pages in English. Available at http://www.sabo-int.org/case/2014_aug_nepal.pdf . – A report by Disaster Preparedness Network Nepal (DPNet Nepal). Available at http://dpnet.org.np/docs/reportManagement/c1177e6cb4970cf8b32f2a789a05d67c.pdf