Theophilus, P.K. and Megotsohe Chasie, 2014. Updation of existing landslide inventory of North Eastern Region. GSI, RHQ, NER, Shillong,  Item Code: SER/NER/RHQ/2013/030; Unpub. GSI Report of FS 2013-2014
A sinkhole have been formed during July-August, 2008 at a distance of approx.150m north-east of ground cracks.
Tynnai Village
The slope failure below the cliff face might be related to the formation of the crack.