With the heavy rains that come along with Typhoon “Henry”, the Mines and Geosciences Bureau (MGB) 7 of the Department of Environment and Natural Resources (DENR) 7 has called on local government officials to undertake the necessary preemptive evacuation efforts in low-lying and landslide and flood-prone areas in the four provinces in Central Visayas
MGB 7 Regional Director Loreto B. Alburo said that these communities should be prepared always or even “overprepared” to ensure their safety.
Alburo made the appeal following a warning from the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) that heavy rains could dump as the typhoon has already entered the Philippine Area of Responsibility (PAR).
“The high flooding susceptibility is due to proximity to perennial river creek system, poor drainage facility, inherently low lying area, proximity to coastal area, heavily silted river or creek, and encroachment along natural drainage channels,” he added.
Flooding occurs when the level of a body of water rises until it overflows its natural or artificial confines and submerges land in the surrounding area due to intense and prolonged precipitation and other geologic factors.
“It is very important that local chief executives should give more attention of areas that are found to be highly susceptible to flooding and landslides which have been known to them as indicated in the geohazards threat advisory issued to them,” Alburo stressed.
He also urged local chief executives to get hold of the geohazard maps, and implement the necessary measures to reduce the impact of landslides and flooding within their areas of responsibility.
He warned that the volume of water brought by Henry might aggravate soil conditions that have been either saturated by rains or loosened by trees uprooted by “Glenda”, thereby causing landslides.
Meanwhile, in Cebu City, 19 barangays are highly susceptible landslides, namely, Lusaran, Binaliw, Guba, Budlaan, Malubog, Buot-Taup, Busay, Sirao, Taptap, Tagbao, Tabunan, Pung-ol Sibugay,Sudlon II, Sudlon I, Sinsin, Buhisan, Pamutan, Sapangdaku, and Adlaon.
Barangays Tagjaguimit, Alpaco, Balirong, Mayana, Naalad, and Cogon in City of Naga.; 11 barangays in Balamban: Hingatmonan, Lamesa, Luca, Ginatilan, Cabasiangan, Matun-og, Cansomoroy, Gaas, Magsaysay, Cabagdalan, and Duangan.
Five barangays in Toledo City: Tungkay, Pangamihan, Bagacay, Loay and Don Andres Soriano; Lamac in Pinamungahan; Five barangays in Asturias:Agbanga, Baye, Bairan, Kanluangan and Sak-sak.
All mountain barangays in Talisay City; Brgy. Doldol, Purok 3 in Dumanjug; and Cansalonoy in Ronda.
In Bohol, those portions of those areas which have been affected by the quake are advised to take the necessary precautions and to implement proactive evacuation are Tagbilaran City, Baclayon, Corella, Cortes, Alburquerque, Panglao, Dauis, Loon, Calape, Catigbian, Balilihan, Batuan, Sagbayan, and Carmen.
Alburo said the assessment reveals that there are five barangays in Cebu City that are considered to be most hazardous to flooding and these are Kasambagan, Kinasang-an, Labangon, Mabolo, Bonbon, and Cebu City downtown areas and along the Guadalupe River; and seven barangays in Mandaue City to include Subangdaku, Mantuyong, Umapad, Opao, Alang-alang, Guizo, and Pakna-an.
In Negros Oriental, five barangays in Guihulngan City, namely, Humayhumay, Imelda, Mabunga, Sandayao, and Tacpao have high susceptibility to landslides. There are 12 barangays with moderate to high susceptibility to landslide and these are Bakid, Banwaque, Calamba, Calupa-an, Linantuyan, Mabunga, Maniak, Plagatasanon, Planas, Trinidad, Binobohan, and Villegas.
In La Libertad, nine barangays with high landslide susceptibility are Aniniaw, Aya, Biga-a, Guihob, Kansumandig, Mambutod, Managondong, Pangca, and Pitogo. Barangay Mandapaton has moderate to high susceptibility to landslide. Eleven barangays with moderate susceptibility to landslide are Manluminsag, Busilak, Cantopa, Elecia (Talostos), Eli, Manghulyawon, Martilo, Nasungon, San Jose, Solongon, and Tala-on.
Around nine barangays in Bayawan City, namely Banga, Maninihon, Poblacion, Villareal, Nangka, Suba, Ubos, Pagatban and Kalumbuyan are flood-prone areas.
Also in Siaton, barangays Poblacion II, Poblacion III, Poblacion IV, and San Jose were flood-prone areas; and barangays Calicugan, Maloh, Cabangahan, Giliga-on, Bonawan and Apoloy area landslides-prone areas.
In Basay, the flood-prone areas are barangays near Tyabanan, Pagatban, and Basay rivers.
A total of eight barangays in Dumaguete City are flood-prone areas, namely, Candau-ay, Cadawinonan, Tabuctubig, Batinguel, Poblacion, Junob, Poblacion 2, and Bagakay.
In Siquijor, six barangays have been assessed to be highly susceptible to landslides and flooding and these are Libo in Enrique Villanueva; Bintangan, and Helen, in Larena; and Cang-isad, Luyang, and Sabang, in Siquijor.