In response to the aftermath of the recent typhoons that struck in most part of the country, the Mines and Geosciences Bureau Region IV CALABARZON (MGB IV CALABARZON) spearheaded an investigation and assessment of reported incidents of landslides and flooding within the region. Technical personnel of MGB IV were sent to different areas of the five provinces, namely, Cavite, Laguna, Batangas, Rizal, and Quezon, to investigate the reported geohazard incidents, and to promptly address the possible dangers of property destruction and loss of life that may stem from such incidents. A total of seven investigations and assessments were conducted by MGB IV CALABARZON from October to November 2020.

Among the geohazards observed, mass movements or landslides were found to be an occurrence in most of the investigations conducted. It was noted that most of the landslide and flood incidents investigated were in proximity to communities that may put them at risk to these geohazards. Advisories on these geohazards were issued to the affected communities, which can be used by the local government to inform their respective communities about the hazards present in their areas.

The dangers that these geohazards pose to the communities of CALABARZON still exist to this day. However, MGB IV CALABARZON is taking measures to identify these hazards and prepare the affected communities to become disaster-resilient as they move forward.  MGB IV CALABARZON is continuously working on projects that will help address the problems that geohazards pose to the communities within the region. Monitoring and prompt action on these incidents will remain a priority activity to ensure the safety and wellness of the region.

A nearly arc-shaped escarpment that developed during a landslide incident in Sitio Kakawan, Barangay Mabacong, Batangas City in the aftermath of Typhoon Quinta

A drone shot of a landslide along the Catanauan-Mulanay National Road in Barangay Sta. Rosa, Mulanay Quezon that occurred during the onslaught of Typhoon Ulysses. The landslide is 47.5m wide and height from crown to toe of about 20m. Cracks along the crown were also observed

Big boulders that resulted from a rockfall incident in Barangay Tungtungin-Putho in Los Baños, Laguna. The boulders range from 2 to 3 meters in diameter and are located approximately 15 meters from the nearest residential structure within the area.

A collapsed road within the Capitol Hills Subdivision in Trece Martires City, Cavite. The road was observed to have been built along the steep bank of the creek within the area. Exposed concrete drainage was observed which directly discharges water to the creek.


by: Alen Clyde A. Canlas                    |          27 November 2020