The affected hillslope is geologically characterized by jointed and fractured Quartzite belonging to Miri Group. Seepage of water along weak planes coupled with incessant and heavy rainfall for some days  led to oversaturation
Nair,V,Athira., Jamir, I., 2022, Remote Sensing based Macro-scale (1:50,000) landslide susceptibility mapping in Toposheets82L/16, 82P/1,2,3,4,5,6 ; 83I/13,14 & 83M/01 covering  parts of West Siang East Siang, Upper Siang, Dibang Valley and Lower Dibang
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Likabali-Aalo road Slide 7
Likabali-Aalo road
i.Systematic diversion of natural drainages and surface water runoff from the upslope portion through combined drainages system of chute drain, culvert and lined hillside drain. ii. Rock bolting and wire mesh system should be implemented
i. Adverse condition of rockmass: predominantly fractured and jointed Quartzite of Miri Group ii. Seepage of water along weak planes and saturation of slope material during rainfall events