The deep rotational debris slide caused due to weathered SFM (intercalation of shale and grey shale of Disang Group) along the extensive slope cut.
Ramesh Guguloth, Neethu Alpho Joseph, 2022, Remote Sensing based Macro-scale (1:50,000) landslide susceptibility mapping in Toposheets 83M/4, 8,12,15,16; 83N/01, 2, 5, 6, 9,13; 92A/03, 4, 6, 7, 11,14,15,16; 92E/02, 3 & 4 covering  parts of Tirap, Changan
NIL
1.5 SW of Pangchau
Longding-Khonsa road
1. Removal of slided debris material 2.  Construction of toe support retaining wall with sufficient weep holes. 3. Construction of hill side road drains. 4. Moderation of slope by benching.
1. Extensive slope cut without stabilizing slope. 2.  Weak slope forming material predominantly comprises of highly weathered dark grey intercalation of shales and grey shale of Disang Group. 3. Pore water pressure developed due to oversaturation of SFM