GEOHAZARD MAP GOT IT WRONG?

first_img“We now have lots of corn plantations in the mountains of theDistrict. It wasn’t that way before. I don’t know kung ano ang growth rate sinathrough the years pero I’m sure itdoes not happen in a month or a year,” he said. The country’s geohazard maps were the output of the Department ofEnvironment and Natural Resources – MGB National Geohazard Assessment Program. The following municipalities andcities have the most number of areas that are highly susceptible to landslides: MGB’s hazard map identified danger zones – areas vulnerable toflooding and landslide – down to the barangay level. Bodies of water like streams in the northern part of the provinceshould also be included in the review of the hazard map, Defensor added. * Iloilo – Leon, Tubungan,Igbaras, Miag-ao, San Joaquin, Maasin, Janiuay, Calinog, Lambunao, andAlimodian * Guimaras – Sibunag, NuevaValencia, Buenavista, San Lorenzon, and Jordan * Aklan – Libacao, Madalag,Malinao, Ibajay, Tangalan, Nabas, Malay, Buruanga, Balete, and Makato WVGEOHAZARDS ILOILO – Following the severe flooding in the northern part ofthis province wrought by typhoon “Ursula”, Gov. Arthur Defensor Jr. called fora reassessment of Iloilo’s hazard map prepared by the Mines and GeosciencesBureau (MGB) in Western Visayas. “The identified hazard areas might havechanged already so we need to review,” he said. * Negros Occidental – Bago City,Pulupandan, Valladolid, San Enrique, Pontevedra, Cadiz City, Sagay City,Escalante City, and E.B. Magallona Under this program, landslide and flood susceptibility assessmentof 1,634 cities and municipalities were completed in 2014. Printed copies ofthe maps were set to be distributed to all local government units (LGUs) in2016. WHAT AREHAZARD MAPS? * Negros Occidental – Cadiz City,Talisay City, Silay City, Murcia, Escalante City, Don Salvador Benedicto,Himamaylan City, Binalbagan, and La Carlota City. The way lands were being utilized may have created new dangerzones, he said, noting the sprouting of vast cornfields on mountainsides innorthern Iloilo. Intensive IEC campaigns explaining to the local communities how touse these maps were then conducted by the MGB. Through the use of these maps,communities at risk could better prepare for natural hazards and avoid disaster. “Ursula” pummeled northern Iloilo last Dec. 25, 2019 withtorrential rains and strong winds. It left vast tracts of lands underwater.Some local government units reported minor landslides. For each province, Magarzo namedthe top 10 municipalities and cities that have the most number of barangaysrated as “high” or “very high” in its susceptibility to landslides andfloods. She qualified, however, that landslides and floods could alsooccur in other areas that were not on the top 10 lists if contributing factors,most particularly episodes of heavy rains, were present. Balasan was one of the northern towns that suffered severeflooding. Defensor said towns in the 5th District which in the past did notsuffer severe flooding suddenly had to contend with it. * Antique – Valderrama, Laua-an,Barbaza, San Remigio, Patnongon, Bugasong, Tibiao, Culasi, Sebaste, and Pandan * Aklan – Kalibo, Numancia, NewWashington, Malinao, Banga, Lezo, Madalag, Libacao, Altavas, and Balete In an interview over governmentradio station DyLL Radyo Pilipinas Iloilo in June 2018, MGB Region 6 chiefgeologist Mae Magarzo bared a list of municipalities and cities in WesternVisayas highly susceptible to landslides and floods based on geohazardsmapping. * Capiz – Tapaz, Jamindan, Maayon,President Roxas, Pilar, Dumarao, Ivisan, Roxas City, Dumalag, and Pontevedra Perhaps the trees were slowly being cut down and replaced by corn,according to Defensor. * Guimaras – Jordan, San Lorenzo,Buenavista, Sibunag, and Nueva Valencia Most susceptible to floods werethe following municipalities and cities: It was the first time Balasan suffered from deep flooding; noteven super typhoon “Yolanda” in November 2013 was able to hit Balasan thishard, said Diolosa. * Iloilo – Zarraga, Pavia,Dumangas, Leganes, Barotac Nuevo, Pototan, Dingle, San Enrique, Passi City, andCalinog Magarzo said natural factorscontribute to landslides such as steep slopes, weak rock characteristics, loosethick soil and poor vegetation.  * Capiz – Dao, Mambusao, Sigma,Sapi-an, Panit-an, Cuartero, Dumalag, Pan-ay, Pontevedra, and Roxas City * Antique – Barbaza, Sibalom, SanRemigio, Valderrama, Patnongon, Laua-an, Bugasong, San Jose, Tibiao, and Culasi Gov. Arthur “Toto” Defensor Jr. “All its 23 barangays naka-experienceflooding kag extremely affected ang farming nga amo ang main livelihood sangmga tawo,” said Chinky Diolosa, Municipal Disaster Risk Reduction andManagement Office head. They are also triggered by rainwhich saturates and loosens rock and soil, or by ground movement caused by anearthquake./PNlast_img