April 19, 2022
As part of the activities of its Geohazard Operation Center, the Mines and Geosciences Bureau Regional Office No. 8 (MGB-08) actively conducted Post-Disaster Geohazard Assessments of the flood and landslide-affected areas in Baybay, City and Abuyog, Leyte due to Tropical Cyclone Agaton. Due to the track of the tropical cyclone, Eastern Visayas region experienced much heavy and prolonged rainfall from April 8-12, 2022.
The detailed Landslide and Flood Susceptibility Map (1:10,000 scale) of MGB-08 and field assessments conducted in Baybay, City, Leyte show that several portions of the city are situated on sites classified as having Very High Landslide and Very High Flood
Susceptibility Ratings. While for Abuyog, Leyte, several portions of the municipality are situated on sites classified as having Moderate to Very High Landslide Susceptibility Rating, Debris flow / Possible accumulation zone (DF) and Moderate to High Flood Susceptibility Rating.
The team of geologists of MGB-08 assessed a total of 15 barangays with reported landslides in Baybay, City (9 barangays) and Abuyog, Leyte (6 barangays).
The barangays covered in Baybay, City are Barangays Bunga, Can-Ipa, Kantagnos, Mailhi, Maypatag, Makinhas, Kagumay, Villa Mag-aso, and Gaas. While in Abuyog, Leyte, a total of thirty-three (33) landslide and tension crack areas located in six barangays namely, Barangays Pilar, Bahay, Lawaan, Malaguicay, Buaya and San Francisco were identified.
Based on the assessment, the nine (9) barangays in Baybay, City are classified as having very high landslide susceptibility rating. For Abuyog, Leyte, Barangays Pilar, Bahay, Malaguicay and San Francisco are classified as having high to very high landlandslide susceptibility while Barangays Lawaan and Buaya are both classified as moderate to very high landslide susceptibility.
Recommendations in the assessment include strict compliance to the Hazard Zone Classifications and Recommended Actions per Joint DENR-DILG-DND-DPWH-DOST Memorandum Circular No. 2014-01. Thus, areas classified as having very high landslide susceptibility are not safe for human settlement and residents within those areas must be immediately relocated.
The field assessment in Baybay, City was conducted on April 17, 19, and 20, 2022, by a team of geologists composed Ennah Marie D. Ambe, Charles Meljan T. Nomus and Iris Yvette A. Cesista together with representatives from City ENRO and LGU-Baybay. While, in Abuyog, Leyte, assessment was conducted on April 16-18, 2022, by the team composed of Brent James E. Dayao, Celes Emilio D. Sia, Maria Therese Diane D. Albano and Michael John Laviña, all of which were under the close supervision and guidance of Geosciences Division Chief Geologist, Celestina U. Carranza.