Using high resolution imagery provided in Google Earth all
necessary polygons and length measurements were done. Figure
4 shows the measurement done for the disaster. A total of
estimated 6 million cubic meters debris fall from 11762m tall
and 717,218 m2
chunk of hill raised more than 100 m from the
water level and affected opposite side of the bank. The width of
the top of landslide was around 491m and base 725 on
approximation. Similarly, the deposition on the opposite river
bank was 533m wide and area of 130,368 m2
. The landslide
blocked the Sunkoshi River completely forming an estimated 8
million cubic meter lake approximately 3km length and 275-
150m width upstream
After the extraction of all the characteristics of landslide, the
features were overplayed with topographic and cadastral map
for the analysis of damage in the area. The lake affected five
VDCs namely Kalika, Kadambas, Yamuna Dada, Pulchodanda
and Thumpakhar. With available 5 cadastral sheets of the
affected area, a total of 631 parcels were affected by the slide or
by the lake formed. The landuse map of the affected parcels is
shown in Figure 5, of which most affected is cultivable land and
steep slopes and forest area.