Debris Flow  occurred in  Perunkala on 15th August 2018  due to heavy rainfall and the geoscientific cause being the unscientific slope modification for road construction.Reduction of strength on super saturation due to excess pore water pressure . 1 aba
Perumkala
1 abandoned Pentecost church situated above the crown of  slide. Crown cracks are observed at the front portion of church. Retaining wall with sufficient weep holes to be constructed at the crown below the church with suitable filler medium to filter the
Reduction of strength on super saturation due to excess pore water pressure and tension cracks are observed on the front prtion of the wall of church.