Photos of the flooding in Allen, Northern Samar (photo credits to Tacloban Today Facebook page)
Debris of rocks has blocked the national highway along the Kahupian road section (photo credits to Tacloban Today Facebook page)
The Mines and Geosciences Bureau Regional Office 8, through its Geology Division issued flood and landslide threat advisories to Local Government Units (LGUs) following the forecast from PAGASA of a tail-end of a frontal system which is affecting the eastern section of northeast Visayas and Mindanao.
The said advisory reminds concerned LGUs that flooding and rain-induced landslides may occur during heavy or prolonged periods of rainfall especially in areas identified to be highly or very highly susceptible to such hazards and areas that received significant antecedent rainfall over the past couple of days. Said LGUs were likewise advised to plan for any emergency, including the identification of safe and suitable relocation sites and/or evacuation centers.
As of to date, the Office has recorded flooding and landslide incidents in the region, particularly in Northern Samar and Southern Leyte. In Northern Samar, four (4) barangays, specifically, Barangays Poblacion, San Frances, Hubasan and Sabang – all of the municipality of Allen were submerged in water on January 8, 2021. The cause of flooding was the large volume of water brought about by continuous heavy rains for about 24 hours in the area. The said barangays have high susceptibility to flooding. In Brgy Poblacion, history of flooding incidents recorded has a height of more than 1 meter.
Meanwhile, a reported landslide in Brgy Lipata, Allen, Northern Samar, also occurred on January 8, 2021. The landslide was reportedly due to the excavation works of a communication company in a sloping site. Also, heavy rains triggered the movement of debris from downslope.
Another landslide (rock fall) occurred in Brgy Kahupian, Sogod, Southern Leyte that has blocked the national highway which remained unpassable as of January 8, 2021. The cause of landslide was probably due to heavy rains brought by the tail end of the frontal system. Brgy. Kahupian has high susceptibility to landslide.
MGB-08 also reminds LGUs to refer to the geohazard maps provided to them by this Office to help them come up with applicable measures in response to such geohazards.