 A report on recent landslides in Thodupuzha, Udumbanchola and Devikulam taluks, Idukki district, Kerala by C. Muraleedharan, Geologist (Sr) and M. P. Muraleedharan, Director, Opn TNPK, Unit Kerala, Thiruvananthapuram (2007)

This landslide took place due to incessant heavy rainfall and poor terrain response due to increase in pore pressure and therefore reduction in shear strength.
Konnathadi
Elappally village
Failed area needs to be protected by afforestation. Local administration and revenue authorities may take precautionary measures by not granting building permit atleast in these highly vulnerable areas. Awareness programme may be arranged in the affected
The failure occurred in a slope comprising thin layer of humus underlain with lateritic soil and admixture of cobbles, boulders, rubbles and bushy vegetation. Rain water percolated through the thin soil cover as well as highly jointed bedrock, got channe