Sinkhole detection app launched

The Department of Environment and Natural Resources’ Mines and Geosciences Bureau (MGB) has introduced a new web-based application designed to automate the detection of sinkholes, a move expected to strengthen the government’s geohazard mapping and disaster response capabilities.

- By ALDEN MONZON

Developed by the bureau's Lands Geological Survey Division, the system combines manual and automated methods to identify potential sinkholes, and assess karst formations or limestone terrain prone to ground collapse.

“The application, that is currently being tested in the Central Visayas region, integrates manual digitization and automated geospatial analysis of available satellite data,” the MGB said over the weekend.

The tool uses topographic maps from the National Mapping and Resource Information Authority with satellite based digital elevation models to track changes in terrain and surface deformation.

Once fully implemented, the app is expected to improve data collection and the accuracy of sinkhole mapping used in local land use planning and post disaster response operations.

Death toll rises to 71

The reported death toll from the magnitude 6.9 earthquake that struck northern Cebu last week has climbed to 71, the National Disaster Risk Reduction and Management Council said yesterday.

In its situational report, the NDR-RMC said 559 others were injured and for validation.