SUMMARY REPORT - MGB Region III

SUMMARY REPORT 

RESULTS OF THE MGB GEOHAZARD ASSESSMENT COVERING 

THIRTY TWO (32) MUNICIPALITIES/CITIES IN THE PROVINCE OF NUEVA ECIJA 

In line with the recent Presidential Directive and NDCC resolutions following the 

February 17 Southern Leyte landslide incident, and the need to fast track the geohazard 

mapping program along the eastern seaboard of the Philippines, geologists from the 

Mines and Geosciences Bureau-Regional Office III (MGB-R3) conducted a geohazard 

assessment of the barangays in the municipalities/cities in the province of Nueva Ecija. 

Each barangay was classified according to their susceptibility to landslide and/or 

flooding. For landslide susceptibility, the rating parameters are as follows: 

High 

• Presence of active and/ or recent landslides 

• Presence of numerous and large tension cracks along slope adjacent to the 

community and that would directly affect the community 

• Areas with drainages that are prone to landslides damming 

• Steep/Unstable slopes consisting of loose materials 

Moderate 

• Areas with indicative and/or old landslides 

• Presence of small tension cracks along slope and are located away from the 

community 

• Moderate slopes 

Low 

• Low to gently sloping 

• No presence of tension cracks 

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Each barangay was rated into low, moderate or high for flooding susceptibility with the 

rating parameters as follows: 

Low 

• 0 – 0.5 meter depth of floodwaters 

Moderate 

• 0.51 – 1 meter depth of floodwaters 

High 

• > 1 meter depth of floodwaters 

With regards to landslide susceptibility, the barangays assessed include areas that are 

located on and/or near slopes and riverbanks and have the potential for landslide 

occurrence. The rating of each barangay presented herein particularly refers to the 

barangay proper since majority of the population is located there. It should be noted, 

however, that the rating does not necessarily reflect those of the sitios. These 

barangays were presented with a Landslide Threat Advisory informing their 

susceptibility to landslides and the corresponding recommendations particular to the 

barangay. 

The flood susceptibility of the barangays in the ten (10) municipalities/city was also 

assessed. Barangays classified with moderate to high susceptibility to flooding are 

located in identified low portions of the barangay, in topographically low-lying areas 

and/or near a major river system. These barangays were presented with a Geohazard 

Threat Advisory informing their susceptibility to flooding and the corresponding 

recommendations particular to the barangay. 

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Table 1. Number of Assessed Barangays 

Municipality/City Total 

Number of 

Barangays 

Barangays 

Assessed 

1. Aliaga 26 26 

2. Bongabon 28 28 

3. Cabanatuan City* 89 89 

4. Carranglan 17 17 

5. Cuyapo 51 51 

6. Gabaldon 16 16 

7. City of Gapan 23 23 

8. Gen. M. Natividad 20 20 

9. Gen. Tinio 12 12 

10. Guimba 64 64 

11. Laur 17 17 

12. Licab 11 11 

13. Llanera 22 22 

14. Lupao 24 24 

15. Science City of Muñoz 37 37 

16. Nampicuan 21 21 

17. Palayan City* 20 20 

18. Pantabangan 14 14 

19. Peñaranda 10 10 

20. Quezon 16 16 

21. Rizal 22 22 

22. San Jose City 38 38 

23. San Leonardo 15 15 

24. Sta. Rosa 33 33 

25. Sto. Domingo 24 24 

26. Talavera 53 53 

27. Talugtug 28 28 

28. Zaragosa 19 19 

29. Cabiao** 23 23 

30. Jaen** 27 27 

31. San Antonio** 16 16 

32. San Isidro** 9 9 

TOTAL 

845 

845 

*- UNDP 2005 (MGBCO), updating of hazard maps conducted by the MGBR3 

**- conducted during the 2004-2005 hazard mapping along Pampanga River 

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SUMMARY OF THE ASSESSMENT: 

1. Municipality of Aliaga 

• In terms of landslide susceptibility, no barangays in Aliaga have the potential for 

landslide occurrence. 

• Active riverbank erosion is observed in three (3) barangays (Sta. Monica, San 

Eustacio and San Emiliano). 

• There are ten (10) barangays with none to low susceptibility to flooding 

(Magsaysay, Santiago, San Felipe (Bata), Umangan, San Eustacio, Sto. Tomas, 

Macabucod, San Pablo (Matanda), Poblacion Centro and Poblacion West) 

• There are ten (10) barangays with low to moderate susceptibility to flooding. 

Most of the residential area has low flooding susceptibility. Agricultural areas of 

the barangay has moderate to high susceptibility (Sto. Rosario, Bucot, San Pablo 

Bata, Poblacion East I, Poblacion East II, Poblacion West III, San Carlos, Betes, 

Pantok and Sunson). 

• There are three (3) barangays with moderate to high susceptibility to flooding. 

These barangays have portions adjacent to active creeks and river channel (Sta. 

Monica, San Juan and San Felipe Matanda). 

• There are two (2) barangays with low, moderate to high susceptibility to flooding. 

The barangay has naturally low-lying areas and portions located near active 

creeks and river channel (San Emiliano and La Purisima). 

2. Municipality of Bongabon 

• There is one (1) barangay with high landslide and debris flow susceptibility (Labi) 

• There are four (4) barangays with low flood susceptibility (Magtanggol Palomaria, 

Sinipit and Olivete). 

• There are two (2) barangays with low to moderatye flood susceptibility (Antipolo 

and Makabaklay) 

• There are five (5) barangays with moderate flood susceptibility (Pesa, Tugatog, 

Larcon, Cruz and Santor). 

• There are three (3) barangays with moderate to high flood susceptibility (Vega, 

Ariendo and Lusok). 

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• There are four (4) barangays with portions susceptible to high level floods. These 

barangays are located near active creeks and Digmala River and with portions 

that are located in generally low-lying areas. (Labi, Curva and Caingin). 

• Riverbank erosion is identified in four (4) barangays (Calaanan, Pesa,Tugatog 

and Larcon) 

3. Cabanatuan City 

• Updating of the 2005 Hazard Maps (UNDP 2005) 

• Location of the barangay centers included in the geohazard data base 

• Hazard identified is mostly related to flooding from the overflow of major rivers 

including Pampanga River, Cabu River and creeks traversing the area. 

• Majority of the city has a low susceptibility to flooding. Barangays with moderate 

to high susceptibility are those located adjacent to the river and located in the 

generally low-lying areas. With historical moderate to high susceptibility to 

flooding and flashflooding particularly in the areas influenced by Pampanga River 

and Cabu River, and flash flood coming from the adjacent mountainous 

municipalities and with natural drainage draining towards the city. 

4. Municipality of Carranglan 

• There are two (2) barangays with low landslide susceptibility (Salazar and 

Burgos) 

• There are six (6) barangays with moderate to high landslide susceptibility (Gen. 

Luna, Capintalan, Minuli, Putlan, Piut and Joson(Digdig) ) 

• Active riverbank erosion is observed in two (2) barangays (Piut and Puncan) 

• There are four (4) barangays with low susceptibility to flooding (T. L. Padilla, F. C 

Otic, Bunga and Putlan) 

• There are six (6) barangays with low to moderate susceptibility to flooding. Most 

areas of the barangay are low susceptible. Agricultural lands and portions near 

creek/river are moderately susceptible to flooding. (D. L. Maglanoc, G. S. 

Rosario, R. A. Padilla, San Agustin, Puncan and Bantug) 

• There are two (2) barangays with portions susceptible to high level floods. These 

barangays are located near active creeks and Carranglan River and with portions 

that are located in generally low-lying areas. (Bantug and Gen. Luna) 

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• There are six (6) barangays with landslide susceptibility due to faulting and 

seismicity (Capintalan, Minuli, Putlan, Piut, Joson (Digdig) and Puncan) 

5. Municipality of Cuyapo 

• There are thirty five (35) barangays with low susceptibility to flooding (barangay 

centers and populated areas) in the municipality of Gerona (Sta. Clara, 

Nagmisaan, Burgos, Cabileo, Curva, Simimbaan, Sabit, Bued, Malineng, Sta. 

Cruz, Cacapasan, Colosboa, Rizal, Salagusog, Columbitin, Paitan Sur, Paitan 

Norte, Nagcuralan, San Juan, Landig, Bonifacio, Baloy, Tutuloy, Calancuasan 

Sur, Calancuasan Norte, Luna, Maycaban, Landig, Cabatuan, Malbeg, Bantog, 

Latap, Pugo, District 1,2 and 6). Most of the purok affected with localized flooding 

are located in the low-lying portion of the barangay, do not have sufficient 

drainage and located near the creek/river systems traversing the barangay. 

• The are sixteen (16) barangays experiencing different susceptibility to flooding 

from low, moderate to high depending on the topographic location 

(Tagtagumbao, Ungab, Districts [4, 5, 7, 8], San Antonio, Loob, Bentigan, San 

Jose, Bulala, Bibiclat, Matindeg, Bambanaba, Piglisan, Villa Flores). These are 

low-lying areas affected by the overflow from the creek/rivers and excessive 

surface run-off coming from the adjacent barangays and municipalities. 

Backflooding results from the inadequate drainage and exit points during 

unusually heavy rainy day and typhoon periods. Structurally controlled flooding 

such as elevated roads and road system with insufficient drainage, irrigation 

canals and excessive release of water from dams in the nearby municipalities of 

Nueva Ecija and Pangasinan is also a possible cause. 

• The agricultural areas/farm lots have a moderate to high susceptibility to flooding. 

• Localized flooding that usually subside after the rains can be attributed to 

inadequate drainage system during periods of unusually heavy precipitation. 

• For landslide susceptibility, there are five barangays with low to moderate 

susceptibility to landslides. The topography is generally gently sloping and no 

tension cracks were observed (Paitan Sur, Paitan Norte, Nagcuralan, San Juan 

and Landig). 

6. Municipality of Gabaldon 

• There are three (3) barangays with high landslide susceptibility (Cuyapa, 

Pinamalisan, and Sawmill). 

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• There are six (6) barangays with moderate landslide susceptibility (Calabasa, 

Macasandal, Malinao, Pantoc, South Poblacion, and Tagumpay). 

• There are four (4) barangays with low landslide susceptibility (Bagong Sikat, 

Bagting, Bantug, and Bitulog – North Poblacion). 

• There are three (3) barangays with no landslide susceptibility (Bugnan, 

Camachile, and Ligaya). 

• In terms of flood and flashflood susceptibility, all assessed barangays were found 

to be susceptible to flooding. These barangays are located in low-lying areas 

and/or lie near a major river system. 

7. City of Gapan 

• In terms of landslide susceptibility, no barangays in the City of Gapan have the 

potential for landslide occurrence. 

• Active riverbank erosion is observed in four (4) barangays (Parcutela, Marelo, 

San Lorenzo and Kapalangan). 

• There is one (1) barangay with low to high susceptibility to flooding (Mangino) 

• There are twenty one (21) barangays with moderate to high susceptibility to 

flooding. These barangays have portions adjacent to active creeks and river 

channel (Parcutela, Marelo, San Roque, Malimba, Sto. Cristo Sur, Sto. Cristo 

Norte, Bayanihan, San Nicolas, Pambuan, San Lorenzo, San Vicente, Sta. Cruz, 

Maburak, Mabuga, Putting Tubig, Bungo, Mahipon, Kapalangan, Bulak, Sto. Niño 

and Balante). 

• There is one (1) barangay with high susceptibility to flooding. The barangay has 

portions located near active creeks and river channel (Makabaklay). 

8. Municipality of Gen. M. Natividad 

• There are six (6) barangays with low susceptibility to flooding (barangay centers 

and populated areas) in the municipality of Gen. Natividad (Pinahan, Platero, 

Natividad, Magasawang Sampaloc, Balangkare Norte and Balangkare Sur). 

• There are four (4) barangays with low susceptibility to flooding in most areas of 

the barangay but there are purok/sitio that have moderate susceptibility to 

flooding. Most of the areas affected with localized flooding are located in the lowlying 

portion of the barangay, agricultural areas, no sufficient drainage, located 

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near the creek/river/irrigation channels traversing the barangay and backflooding 

(Manarog, Talabutab Norte, Belen and Poblacion). 

• There are ten (10) barangays with low susceptibility to flooding in most areas but 

there are purok/sitio that have moderate to high susceptibility to flooding. Most of 

the areas affected with flooding are located near the Pampanga River, generally 

locate in the low-lying portion of the barangay, agricultural areas, no sufficient 

drainage, located near the creek/river/irrigation channels traversing the barangay 

and backflooding (Sapang Bato, Kabuluan, Mataas na Kahoy, Burol, Balaring, 

Pulong Singkamas, Picaleon, Panacsac, Talabutab Sur and Bravo) 


• Localized flooding that usually subside after the drains can be attributed to 


9. Municipality of Gen. Tinio 

• In terms of landslide susceptibility, no barangays in Gen. Tinio have the potential 

for landslide occurrence. 

• Active riverbank erosion is observed in seven (7) barangays (Pias, Rio Chico, 

Poblacion East, Poblacion Centro, Poblacion West, Bago and Padolina). 

• There are four (4) barangays with low susceptibility to flooding (Nazareth, San 

Pedro, Sampaguita and Pulong Matong). 

• There is one (1) barangay with low to moderate susceptibility to sheet flooding 

(Concepcion) 

• There are four (4) barangays with portions susceptible to moderate to high level 

floods. These barangays have portions adjacent to active creeks and river 

channel (Pias, Rio Chico, Bago and Padolina). 

• There are three (3) barangays with portions susceptible to high level floods. 

These barangays have portions located near active creeks and river channel 

(Poblacion East, Poblacion Centro and Poblacion West). 

10. Municipality of Guimba 

• In terms of landslide susceptibility, no barangays in Guimba have the potential for 


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• Active riverbank erosion is observed in twenty six (26) barangays (Sta. Cruz, San 

Bernardino, Caballero, Triala, Culong, Bagong Barrio, Pasong Inchic, San 

Rafael, Casongsong, Bacayao, Macamias, Guiset, San Andres, Ayos Lomboy, 

Macapabellag, Faigal, Cavite, Sta. Lucia, San Miguel, Manacsac, Caingin-Tabing 

Ilog, Calem, Partida II, Macatcatuit, Narvacan II and Sta. Veronica. 

• There are sixteen (16) barangays with none to low susceptibility to flooding 

(Tampac I, Tampac II, Tampac III, Sta. Cruz, San Bernardino, Caballero, Triala, 

Consuelo, San Roque, Manggang Marikit, San Rafael, Naglabrahan, Cardinal, 

Magpandayan, Catimon and Banitan). 

• There are thirteen (14) barangays with low to moderate susceptibility to flooding. 

Most of the residential area has low flooding susceptibility. Identified low-lying 

and agricultural areas of the barangay has moderate to high susceptibility 

(Bagong Barrio, Pasong Inchic, Casongsong, Guiset, San Andres, Camiling, 

Cabaruan, Lamorito, Maybubon, San Agustin, Magpandayan, Balingog East, 

Bantug and Sto. Cristo). 

• There are twelve (12) barangays with moderate to high susceptibility to flooding. 

The barangay has naturally low-lying areas and portions adjacent to active 

creeks and river channel (Culong, Cawayan Bugtong, Narvacan I, Macamias, 

Ayos Lomboy, San Miguel, Galvan, Yuzon, Agcano, Partida I, Macatcatuit and 

Saranay). 

• There are sixteen (16) barangays with low, moderate to high susceptibility to 

flooding. The barangay has naturally low-lying areas and portions located near 

active creeks and river channel (Pacac, Bacayao, Balbalino, San Marcelino, 

Saint John (Poblacion), Macapabellag, Sta. Ana, Faigal, Sinulatan, Sta. Lucia, 

Bulakid, Escano, Manacsac, Balingog West, Subol and Maturanoc). 

• There are eight (7) barangays with high susceptibility to flooding. These 

barangays have portions adjacent to active creeks and river channel, and has 

naturally low-lying areas (Cavite, Caingin-Tabing Ilog, Calem, Partida II, Lennec, 

Narvacan II and Sta. Veronica). 

11. Municipality of Laur 

• There is one (1) barangay with moderate landslide susceptibility (Bayug) 

• There are four (4) barangays with low landslide susceptibility (Bacao, Burac, 

Pantoc and San Fernando). 

• There are twelve (12) barangays with low flood susceptibility (Poblacion I, II, III, 

San Felipe, San Juan. Paludpod, Pintol, Bacao, Pantoc, Bayug, San Isidro and 

San Fernando). 

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• There is one (1) barangay with moderate flood susceptibility (Pinagbayanan) 

• There are nine (9) barangays with low to moderate flood susceptibility (Poblacion 

IV, Siclong, San Vicente, Canantong, San Josef, Sagana, Labi, Casa Real and 

Burac). 

• There are five (5) barangays and one (1) sitio with portions susceptible to high 

level floods. These barangays are located near active creeks and Coronel River 

and with portions that are located in generally low-lying areas. (Pacarso, 

Kamuning, Panaulo, Betania, San Antonio and Sitio Pangarulong) 

• There are two (2) barangays and one (1) sitio with portions prone to liquefaction 

(Panaulo, Betania and Sitio Pangarulong) 

12. Municipality of Licab 

• In terms of landslide susceptibility, no barangays in Licab have the potential for 


• Active riverbank erosion is observed in three (3) barangays (Tabing Ilog, 

Villarosa and San Cristobal). 

• There are three (3) barangays with low to moderate susceptibility to flooding. 


the barangay has moderate to high susceptibility (San Casimiro, Sta. Maria and 

San Jose). 

• There are seven (7) barangays with moderate to high susceptibility to flooding. 

These barangays have portions adjacent to active creeks and river channel 

(Poblacion, Poblacion Norte, San Juan, Tabing Ilog, Linao, Villarosa and San 

Cristobal). 

• There is one (1) barangay with high susceptibility to flooding. The barangay has 

naturally low-lying areas and portions located near active creeks and river 

channel (Aquino). 

13. Municipality of Llanera 

• There are eighteen (18) barangays with low susceptibility to flooding (barangay 

centers and populated areas) in the municipality of Llanera (Gomez, Florida 

Blanca, Villa Veniegas, Sta. Barbara, Ligaya, San Nicolas, Caridad Norte, Casile, 

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Gen Luna, Murcon, Gen. Ricarte, Mabini, Inanama, A. Bonifdacio Sur, A. 

Bonifacio Norte, Victoria, Bagumbayan and Plaridel). 

• There are four (4) barangays with low susceptibility to flooding in most areas but 


the areas affected with localized flooding are located in the low-lying portion of 

the barangay, agricultural areas, no sufficient drainage, located near the 

creek/river/irrigation channels traversing the barangay and backflooding (Caridad 

Sur, San Felipe, San Vicente and Basque). 




14. Municipality of Lupao 

• In terms of landslide susceptibility, there are six (6) barangays in Lupao that are 

located on and/or near slopes and have potential for landslide occurrence. The 

rating of each barangay presented herein particularly refers to the barangay 

proper since majority of the population is located there. 

• Most of the barangays in the municipality of Lupao has a low flood and flashflood 

susceptibility. For this rapid geohazard assessment and mapping, flooding had 

been classified into flash, sheet, channel confined or river flooding and urban 

flooding. Since the municipality is generally located at a higher elevation than the 

nearby municipalities, there is a low incidence of the creeks and rivers 

overtopping its banks. However, there are barangays that are possible landslide 

debris accumulation zones based on past events such as the North Luzon 

Earthquake of 1990. 

• The twenty four (24) barangays in the municipality of Lupao have low 

susceptibility to flooding. 

• One barangay (1), Tienzo has a low susceptibility in most area of the barangay; 

however, Purok 3 has a moderate to high susceptibility to flooding. 

• Other hazards identified include river flooding or channel confined flooding, 

active river bank erosion and siltation. Riverbank erosion was observed in the 

active creeks/river and natural channels traversing the municipality (Arimal 

Creek, Panabcan River, Agupalo River, Balibago Creek, Alimutong Creek, 

Macanawed River). Siltation will result to shallow riverbeds. 

15. Science City of Muñoz 

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• There are twenty four (24) barangays with low susceptibility to flooding (Bantug, 

Cabisuculan, Calabalabaan, Calisitan, Curva, Gabaldon, Labney, Licaong, 

Linglingay, Magtanggol, Maligaya, Mangandingay, Maragol, Mapangpang, 

Naglabrahan, Poblacion East, Poblacion South, Poblacion West, Rang-ayan, 

Rizal, San Andres, Villa Quizon, Villa Isla and Villa Nati). 

• There are seven (7) barangays with low to moderate susceptibility to flooding. 

Agricultural areas of the barangay, identified low-lying areas and those located 

near the creek/river channel has moderate susceptibility (Balante, Bical, 

Palusapis, Poblacion North, San Antonio, San Felipe and Sapang Cauayan). 

• There are four (4) barangays with moderate to high susceptibility to flooding. 


creeks and river channel (Bagong Sikat, Catalanacan, Franza and Matingkis). 

• Riverbank erosion was observed in the active creeks/river and natural channels 

traversing the municipality such as Ilog Baliwag, Calisitan Creek, Sinulatan 

Creek and Napnitan Creek. 

• Siltation is evident along the active channels traversing the municipality. 

• The Casecnan irrigation system passes through several barangays of the city. 

To date, the effect of the Casecnan canals with regard to flooding is not evident 

yet. 

16. Municipality of Nampicuan 

• All twenty one (21) barangays experience varying degrees of flooding. 

• There are ten (10) barangays with low to moderate susceptibility to flooding (Edy, 

Tony, Maeling, Medico, Cabawangan, East Central Poblacion, South West 

Poblacion, West Poblacion, North West Poblacion and West Central Poblacion). 

• Nine (9) barangays with moderate to high susceptibility to flooding (Recuerdo, 

Mayantoc, Alemania, Cabaducan East, Amb. Alzate Village, Cabaducan West, 

South East Poblacion, Estacion and South Central Poblacion) 

• Only one (1) barangay has a moderate susceptibility to flooding. 




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17. Palayan City 

• Updating of the 2005 Hazard Map (UNDP 2005) 

• Barangay locations are included in the geohazard database. 

• Landslide and flooding hazards are present in the city. 

• Barangays with susceptibility to flooding are influenced by the Pampanga River 

and creeks traversing the barangays. There are generally low lying portions with 

moderate to high susceptibility to flooding. 

• The mountainous areas have moderate to high susceptibility to landslides. 

18. Municipality of Pantabangan 

• There are three (3) barangays with low landslide susceptibility (East Poblacion, 

Malbang and Fatima). 

• There are three (3) barangays with low to moderate landslide susceptibility 

especially along the highway and road shoulders (BLISS-San Juan, Naponnapon 

and Conversion). 

• There is one (1) barangay with moderate to high landslide susceptibility. There 

are indications of old landslides in the barangay (Marikit). 

• Active riverbank erosion is observed in three (3) barangays (Fatima, Cambitala 

and BLISS-San Juan). 

• There are two (2) barangays with portions susceptible to moderate to high level 

floods. These barangays are located near active creeks/river and with portions 

that are located in generally low-lying areas. (Ganduz and Cadaclan). 

19. Municipality of Peñaranda 

• In terms of landslide susceptibility, no barangays in Peñaranda have the potential 


• Active riverbank erosion is observed in seven (7) barangays (Callos, San Josef, 

Sinasajan, Las Piñas, Sto. Tomas, Poblacion 3 and Poblacion 4). 

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• There are three (3) barangays with low susceptibility to flooding (San Mariano, 

Poblacion 1 and Poblacion 2). 

• There are seven (7) barangays with portions susceptible to moderate to high 

level floods. These barangays have areas located near active creeks and river 

channel (Callos, San Josef, Sinasajan, Las Piñas, Sto. Tomas, Poblacion 3 and 

Poblacion 4)). 

• In terms of landslide susceptibility, no barangays in Sasmuan have the potential 


• There are seven (7) barangays with moderate to high susceptibility to flooding 

(Sta. Lucia, Sta. Monica, San Antonio, San Nicolas 1 st , San Nicolas 2 nd , Sto. 

Tomas and San Pedro). 

• There are five (5) barangays with high susceptibility to flooding. These barangays 

have portions that are adjacent to active creeks and river channel and are 

generally located in the low-lying areas (Batang 1 st , Batang 2 nd , Mabuanbuan, 

Sebitanan and Malusak). 

• Liquefaction is possible in all barangays. 

20. Municipality of Quezon 

• In terms of landslide susceptibility, no barangays in Quezon have the potential for 


• Active riverbank erosion is observed in seven (7) barangays (San Alejandro, Sta. 

Rita, Ilog Baliwag, Sta. Clara, Sto. Cristo, San Andres I and San Andres II). 

• There are four (4) barangays with low susceptibility to flooding (Sto. Tomas 

Feria, San Miguel, San Manuel and Doña Lucia) 

• There are seven (7) barangays with low to moderate susceptibility to flooding. 


the barangay has moderate to high susceptibility (Bertese, Sta. Rita, Sta. Clara, 

Brgy. I (Poblacion), Brgy. II (Poblacion), Dulong Bayan and San Andres I). 

• There are two (2) barangays with low, moderate to high susceptibility to flooding. 


creeks and river channel (San Alejandro and Ilog Baliwag). 

• There are three (3) barangays with high susceptibility to flooding. These 

barangays have portions adjacent to active creeks and river channel, and has 

naturally low-lying areas (Pulong Bahay, Sto. Cristo and San Andres II). 

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21. Municipality of Rizal 

• There is one (1) barangay with high landslide susceptibility (Sta. Monica). 

• There are three (3) barangays with low landslide susceptibility (Casilagan, Villa 

Paraiso and Villa Labrador). 

• Active riverbank erosion is observed in one (1) barangay (Canaan East). 

• These barangays are with low susceptibility to flooding (Portal, Balasing, Del 

Pilar, Aglipay, Bicos, Maligaya, Agbannawag, Pag-asa, Paco Roman, 

Cabucbucan, Canaan East, Canaan West, Gen. Luna, Casilagan, Villa Paraiso, 

Villa Labrador) 

• Although most of the populated areas of the barangay have low susceptibility to 

flooding, there are barangays with portions susceptible to moderate to high level 

floods. These barangays have populated portions located near active creeks and 

the Pampanga River and with portions that are located in generally low-lying 

areas. (,Estrella/Subdivision, Calaocan, San Gregorio, San Esteban, 

Cabucbucan, Macapsing, Canaan East and Gen. Luna). 

22. City of San Jose 

• There is one barangay with low landslide susceptibility (Tayabo) 

• There is one barangay with low to moderate landslide susceptibility (Floresta) 

• There are twenty five (25) barangays with low flooding susceptibility. Isolated and 

localized flooding are structurally controlled and due to drainage problems. (Sto. 

Niño 3 rd , Sto. Niño 2 nd , Manikla, Tayabo, Malasin, Porais, Villa Joson, San Juan, 

Villa Marina, Kaliwanagan, Culaylay, Palestina, Pinili, Bagong Sikat, 

Kamanagsakan, Calaocan, Sibut, San Agustin, Abar 1 st , Sto. Tomas, Rafael 

Rueda, Crisanto Sanchez, Canuto Ramos, Raymundo Eugenio, F. E. Marcos) 

• There are four (4) barangays with low to moderate flooding susceptibility. 

Localized flooding is due to absence of drainage system and overflow from silted 

river channels. Moderately flooded are agricultural areas and identified low 

portion of the barangay. (Tulat, Dizol, Abar 2 nd and Caanawan) 

• There are six (6) barangays with moderate to high flooding susceptibility. 

Flooding is due to insufficient and clogged drainage system, overflow from silted 

river channels and identified low-lying areas compared to the rest of the city. 

(Sto. Niño 1 st , Kita-Kita, Tabulak, Parang Mangga, A. Pascual and San Mauricio) 

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• Active riverbank erosion is observed in three (3) barangays (Tulat, Tabulak and 

Parang Mangga). 

23. Municipality of San Leonardo 

• In terms of landslide susceptibility, no barangays in San Leonardo have the 


• Active riverbank erosion is observed in seven (7) barangays (Pias, Rio Chico, 

Poblacion East, Poblacion Centro, Poblacion West, Bago and Padolina). 

• There are four (4) barangays with low susceptibility to flooding (Nazareth, San 

Pedro, Sampaguita and Pulong Matong). 

• There is one (1) barangay with low to moderate susceptibility to sheet flooding 

(Concepcion) 

• There are four (4) barangays with portions susceptible to moderate to high level 

floods. These barangays have portions adjacent to active creeks and river 

channel (Pias, Rio Chico, Bago and Padolina). 

• There are three (3) barangays with portions susceptible to high level floods. 

These barangays have portions located near active creeks and river channel 

(Poblacion East, Poblacion Centro and Poblacion West). 

24. Municipality of Sta. Rosa 

• In terms of landslide susceptibility, no barangays in Sta. Rosa have the potential 


• There are ten (10) barangays with low susceptibility to flooding (Mapalad, 

Malacañang, Liwayway, Tagpos, Soledad, Rajal Centro, Rajal Sur, Rajal Norte, 

Inspector, Sto. Rosario). 

• There are fifteen (15) barangays with moderate to high susceptibility to flooding 

(San Isidro, San Pedro, San Joseph, Maliolio, Sta. Teresita, Zamora, Gomez, 

San Mariano, Luna, Valenzuela, Mabini, Aguinaldo, Burgos, Tramo and 

Cojuangco). 

• There are four (4) barangays with high susceptibility to flooding. These 

barangays have portions that are adjacent to active creeks and river channel and 

16

are generally located in the low-lying areas (La Fuente, Lourdes, Isla and 

Berang). 

• There are four (4) barangays susceptible to low, moderate to high flooding. 

These barangays are adjacent to creek and are with identified low-lying areas 

(Sapsap, Rizal, Del Pilar and San Gregorio) 

• .Active riverbank erosion is present in six (6) barangays (Mapalad, Malacañang, 

Sto. Rosario, Sapsap, Isla and Tramo). 

• There is possible liquefaction in one (1) barangay (Isla). 

25. Municipality of Sto. Domingo 

• There are sixteen (16) barangays with low susceptibility to flooding (Baloc, 

Buasao, Burgos, Cabugao, Casulucan, Comitang, Gen. Luna, Malasin, 

Malayantok, Mambarao, Poblacion, Pulong Buli, Sagaba, San Francisco, San 

Pascual and Sta. Rita). Brgy. Comitang has portions that are susceptible to 

moderate to high flooding. 

• There are two (2) barangays with low to moderate susceptibility to flooding (Hulo 

and Sto. Rosario). 

• There are five (5) barangays with moderate to high susceptibility to flooding. The 

barangay has naturally low-lying areas and portions located near active creeks 

and river channel (Concepcion, Maligaya, Dolores, San Agustin and San 

Fabian). 

• Brgy. Mabini has portions that are susceptible to low to moderate and moderate 

to high level floods. 


traversing the municipality such as Talavera River, Sapang Cauayan, Papaya 

River and Ilog Baliwag. 


26. Municipality of Talavera 

• There are forty two (42) barangays with low susceptibility to flooding (San 

Pascual, Lomboy, Campos, Burnay, Valle, Calipahan, Andal Alino, Esguerra, 

Marcos, Mamandil, Bantug, Dinarayat, Bacal I, Bacal II, Bacal III, Matingkis, 

Baluga, San Miguel na Munti, Sicsican Matanda, Casulucan Este, Tabacao, 

Basang Hamog, Pantoc Bulac, Tagaytay, Cabubulaunan, Caputian, Mabuhay, 

Collado, Kinalanguyan, Sibul, Bugtong na Buli, Dimasalang Norte, Dimasalang 

Sur, Bantug Hacienda, Gulod, Sampaloc, Paludpod, San Ricardo, Bagong 

Sikat, Homestead I, Homestead II and Pinagpanaan). 

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• There are four (4) barangays with low to moderate susceptibility to flooding. 

Agricultural areas of the barangay, identified low-lying areas and those located 

near the creek/river channel has moderate susceptibility (Pulong San Miguel, 

Maestrang Kikay, La Torre, Caaminaplahan and Pula). 

• There are four (4) barangays with low, moderate to high susceptibility to 

flooding. The barangay has naturally low-lying areas and portions located near 

active creeks and river channel. There are also purok of the barangays that are 

located below the road level, such that when the river overflows, unusually high 

level floods had been experienced (Matias, Poblacion Sur, Pulong San Miguel 

and Bulac). 

• There are three (3) barangays with moderate to high susceptibility to flooding 

(Bagong Silang, Pagasa and Minabuyok). Silted creek channels, topographic 

and structure control, and being adjacent to the creek/rivers are the factors that 

influence flooding in the vicinity. 


traversing the municipality. Talavera River is the main drainage in the 

municipality. Other natural drainage include Siksikan River, Sapang Mangga, 

Pantoc Bulac Creek, Balasiwa Creek, Vaca Creek and Pinagpanaan Creek. 


27. Municipality of Talugtog 

• There are eighteen (18) barangays with low susceptibility to flooding (barangay 

centers and populated areas) in the municipality of Talugtug (Alula, Sampaloc, 

Maasin, Villa Rosario, Calisitan, Culiat, Saguing, Buted, Tibag, Patola, Sto. 

Domingo, Sta. Catalina, Osmeña, Roxas, Quirino, Magsaysay, Quezon and 

Cabiangan). 

• There are five (5) barangays with low susceptibility to flooding in most areas but 


the areas affected with localized flooding are located in the low-lying portion of 

the barangay, agricultural areas, do not have sufficient drainage and located near 

the creek/river/irrigation channels traversing the barangay (Saverona, Fronda, 

Villa Rosenda, Villa Boado and Mayamot II). 

• The are 5 (5) barangays experiencing different susceptibility to flooding from low, 

moderate to high depending on the topographic location (Nangabulan, Cinense, 

Tandoc, Mayamot and Baybayabas). These are low-lying areas affected by the 

overflow from the creek/rivers and excessive surface run-off coming from the 

18

adjacent barangays and municipalities. Backflooding results from the inadequate 

drainage and exit points during unusually heavy rainy day and typhoon periods. 

Structurally controlled flooding such as elevated roads and road system with 

insufficient drainage, irrigation canals and excessive release of water from dams 

and temporary water impoundments are also common factors. 




28. Municipality of Zaragosa 

• In terms of landslide susceptibility, no barangays in Zaragosa have the 


• There are seven (7) barangays with moderate to high susceptibility to flooding 

(San Vicente, Carmen, Pantoc, Concepcion, San Isidro, Sta. Cruz and San 

Rafael). 

• There are twelve (12) barangays with high susceptibility to flooding. These 

barangays have portions that are adjacent to active creeks and river channel 

and are generally located in the low-lying areas (Sta. Lucia Young, Sta. Lucia 

Old, Del Pilar, Sto. Rosario Young, Sto. Rosario Old, Macarse, Mayamot, 

Veleriana, Batitang, Manaol, H. Romero and Gen. Luna). 

It should be noted that these susceptibility ratings were arrived at as of the field 

assessment. However the rating could advance (e.g., from low to moderate, moderate 

to high) due to changing physical conditions. Hence, the MGB constantly recommends 

strict and continuous monitoring of the affected barangays. 

Attached herewith are the matrices of the municipalities included in the assessment. 

The geohazard assessment in the municipalities of Cabiao, Jaen, San Antonio and San 

Isidro was conducted in 2004-2005 during the Hazard Assessment along the Pampanga 

River. The location of the barangays was included in the geohazard data base. The 

data collected during this period was incorporated in the 1:50,000 Flood Susceptibility 

Map of the Province of Nueva Ecija. 

The hazard maps of Cabanatuan City and Palayan City was initially prepared by the 

MGBCO-UNDP 2005 and updated during this hazard mapping and assessment project. 

The location of the barangays was included in the geohazard data base. The data 

collected during this period was also incorporated in the 1:50,000 Flood Susceptibility 

Map of the Province of Nueva Ecija. 

19

MGB-RIII Assessment Team 

Cecil G. Martinez Carolyn V. Sacdalan 

Supervising Geologist Senior Science Research Specialist 

Bryan Noel Mallare Rick Rodell Luis Clarissa G. Villanueva 

Senior Geologist Senior Geologist Senior Geologist 

Noted by: 

Noel B. Lacadin 

OIC, Geosciences Division 

20

SUMMARY REPORT - MGB Region III

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