A possible sinkhole has been discovered at Sitio Bairan in Barangay General Luna, Toboso, Negros Occidental.
Toboso Mayor Richard Jaojoco disclosed that the sinkhole, which is now being validated, is about 500 meters from a fault system.
The East Negros Fault System (ENFS) is a series of active faults in Negros Occidental, including the Toboso-Calatrava and Pinocawan River fault segments in San Carlos City.
These are part of a broader tectonic network, featuring both active faults and proximity to the subduction zone known as Negros Trench.
Jaojoco said they already reported it to the Mines and Geosciences Bureau (MGB) of the Department of Environment and Natural Resources (DENR) for investigation.
Following the 6.9 magnitude quake in Cebu, Toboso also experienced three consecutive magnitude 1.5 to 3.4 earthquakes, in October last year. (Gilbert Bayoran via tvds photo by tvds)