The risk of further rockfalls remains in the Kadugannawa area, Senior Geologist of the National Building Research Institute (NBRI), Dr. Wasantha Senadheera has warned.

He said several rocks remain lodged above the location where a rockfall was reported in Kadugannawa yesterday (10), raising concerns that they could dislodge and fall at any moment.

He also pointed to a potentially hazardous situation affecting the railway line in Kadigamuwa.

Dr. Senadheera explained that isolated rainfall in certain areas, which may not be adequately captured by the Department of Meteorology's forecasts and monitoring systems, has made it increasingly difficult to predict hazards such as landslides and rockfalls.

He noted that rain gauges can be located between six and ten kilometres apart, creating gaps in rainfall data for areas situated between monitoring stations.

As an example, he said the rain gauge at Kurukuttala School, located approximately one kilometre from the site of the Kadugannawa rockfall, had not recorded significant rainfall.

However, observations indicate that rainfall at the actual location of the rockfall had contributed to the incident.

In view of these risks, Dr. Senadheera urged residents living in vulnerable areas to remain vigilant and closely monitor changing conditions.