introduction - official website of agusan del...

ENVIRONMENT PROFILE

MR. ARMANDO VALIENTEProvincial Environment and Natural Resources Office

Technical Paper SeriesARNDP – Volume II

14|14

Contents1. Introduction......................................................................................................................1

2. Relevant Data and Information.........................................................................................1

2.1. Climate and Rainfall...................................................................................................1

2.2. Significant Sites and Protected Areas........................................................................4

2.3. Characteristics of the Study Area.............................................................................10

2.4. Disaster Risk Reduction............................................................................................13

2.5. Flooding...................................................................................................................13

2.6. Rain-induced Landslide and Ground Movement......................................................17

2.7. Ground Rupture.......................................................................................................21

2.8. Liquefaction.............................................................................................................21

2.9. Drought....................................................................................................................21

i | E n v i r o n m e n t a l P r o fi l e

List of TablesTable 1: Rainfall in Agusan del Sur from 2006 - 2010..............................................................2

Table 2: List of Watershed Areas..............................................................................................6

Table 3: Tree Parks..................................................................................................................7

Table 4: Natural Significant Sites for Eco-Tourism...................................................................7

Table 5: Ancestral Domain.......................................................................................................9

Table 6: Level of Prioritization for Risk Estimate to Life on Flooding.....................................13

Table 7: Hazard Levels of Municipalities and Barangays.......................................................14

Table 8: Level of Prioritization for Risk Estimate to Life on Rain-Induced Landslide..............16

Table 9: Level of Prioritization for Risk Estimate to Life on Rain-Induced Landslides.............17

Table 10: Summary of Frequency and Occurrence................................................................21

List of FiguresFigure 1: Climate Map.............................................................................................................3

Figure 2: Protection Map.........................................................................................................5

Figure 3: Hazard Map............................................................................................................11

Figure 4: Flood Hazard Map..................................................................................................12

ii | E n v i r o n m e n t P r o fi l e

1. Introductionnvironment refers to our surroundings – all living and non-living things that exist surrounded by other things that occur naturally on earth. The components of the environment are inextricably linked; no component exists in total isolation and

nothing can be changed without affecting something else. Consequently, the environment cannot be assessed by simply examining its components in isolation. Instead, they must be considered as parts of the whole. This concept is crucial in understanding the role which humans play affecting their environment.

ERoad development project, if undertaken without proper understanding of the relationships inherent in environmental functions, can cause serious disruptions to the environment from which it may take a long time to regain equilibrium. In human terms, this may mean that generations must function in a debilitated environment and suffer many possible associated socio-economic hardships and financial losses. Thus, the integrity and carrying capacity of the environment and natural resources are not to be degraded, rather conserved, protected and enhanced in the process of any development. Environmental protection is viewed as a shared and indivisible responsibility of all individuals, families, communities, and other institutions to achieve environmental sustainability.

This paper presents the description of the environment of Agusan del Sur particularly its topography and land features, soil types, climate and rainfall, identified significant sites, and protected areas including ancestral domain and the over all characteristics of the province.

1.2. Objective

The main objective of this paper is to describe the updated data and information of Agusan del Sur relative to its climate and rainfall, identified significant sites, and protected areas including ancestral domain and the overall characteristics as well as Risk Disaster Reduction data, which can be considered in the selection of road investment programs.

1 | E n v i r o n m e n t P r o fi l e

2. Relevant Data and Information

1.2.2.1. Climate and RainfallGeographically, the province is situated below the typhoon belt. But it is usually affected by depressions forming in the typhoon prone regions of Visayas and Surigao del Norte. The Climate Map of the Philippines is based on modified coronas classification where the province falls under Type II.

Type II climate has no dry season but with pronounced maximum rain period that occurs from December to January. The province has not experienced a single dry month. This climate is generally felt in areas near the eastern coast, which are open to the northeast monsoon.

Agusan del Sur has an average daily rainfall of 11.00434 mm for the last five years (2006-2010).

Table 1: Rainfall in Agusan del Sur from 2006 - 2010

Year Ave. Daily Rainfall (mm)

2010 10.28433

2009 12.42959

2008 10.67426

2007 11.28315

2006 10.35036

Average Daily Rainfall from 2006 t0 2009 ( mm)

11.00434

Source : Patin-ay Agromet Station


Figure 1: Climate Map

PAGASA

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NOTE : This map is subject to validation, users noting errors or ommission areurged to inform the Provincial Planning & Development Office - GIS Section.The PPDO is not responsible for any errors or liabilities that may arise from using the map.

LAYOUT BY : Provincial Planning & Development OfficeGIS Section

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Type II (No dry seasonwith pronounced maximum rain period)

Type IV (Rainfull is more or less evenly distributed throughout the year)

CLIMATE MAPSOURCE :


2.2. Significant Sites and Protected AreasThe Province of Agusan del Sur has wondrous significant sites and protected areas such as the Agusan marsh, watersheds, tree parks, lakes and waterfalls, caves, Ancestral Domain areas, flora and fauna resources. The Protection Map of the Province is shown in Figure 2.


Figure 2: Protection Map

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LEGEND :

Mun. Boundary

RoadsPrimary Nat'l. Rd.Secondary Nat'l. Rd.Provincial Rd.Municipal Rd.Barangay Rd.Nia Rd.Private Rd.

River

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SCALE 1 : 150,000

ARC '09Provincial Planning & Development OfficeGIS Section

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This map is subject to validation users noting errors or ommission are urged to inform theProvincial Planning and Development Office - GIS Section.The PPDO is not responsible for any errors or liabilities that may arise from using this map.

1. PPDO Road Network Map2. Caraga Rivers and Creeks Map

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PROTECTION MAPAGUSAN DEL SUR

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MAP OF THE PHILIPPINES

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BUNAWAN

ROSARIO

BAYUGAN

SIBAGAT

SAN LUIS

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BOCAC

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PASTA

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SALUG

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SINAI

PEREZ

CUEVAS

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AURORA

ANITAP

MAGAUD

CAGBAS

SAGUMAOSMEÑA

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BATAAN

COMOTA OSMEÑA

WASIAN

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LIBUAC

MABTAY

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KARAOS

HUBANG

PISAAN

BORBON

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LANGAS

BALOBO

MAASIN

AGSABU

TAHINA

WIGUAM

ZAMORA

MARBON

LABNIG

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PADIAY

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AURORA

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MAPAGA

PANGYAN

CEBOLIN

MASAYAN

SAWAGAN

SISIMON CANDIIS

JOHNSON

BERSEBA

MABU HAYTAGUBAY

MAHAYAG

SAGMONE

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SAGUNTO

CABAWAN

ALEGRIATAGAPUA

SIBULAN

DUANGAN

DACUTAN

SIGUNDA

STA. FE

OROMICA

BATOHON

MAHAPAG

CECELIA

CULIRAM

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MABUHAY

SAN JOSE

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SINOBON G

KATIPUNAVIOLANTA

KASAPA I

SAN JUAN

STO NIÑO

CALAITAN

TAGLIBAS

CHAR ITO

PANAYTAY

LIBERTAD

CABANTAO

MALIGAYA

STA. ANA

LADGADAN

SAN JOSE

CATMONON

BENTAHON MAHAGKOT

HAWILIANREMEDIOS

TAGABASI

MILAGROS

BUNAGU ETCALABOAN

GUEBUNON

SANTIAGO

MARITULA

MAHAGSAY

ZILLOVIA

LA FLORA

LIBERTAD

ANAHAW AN

SAN JOSE

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PATIN-AY

LIBERTAD

SAN ROQUE

SALVACION

PAG - ASA

MAGSAYSAY

DON MATEO

CAIGANGAN

DEL MONTE

KATIPUNANSTA CRUZ

STO. NIÑ O

BINUCAYAN

KAUSWAGAN

HAMOGAWAY

NEW SALEM

GETSEMANE

MT. OL IVE

CANAYUGAN

SALVACION

KATIPUNAN

MARCELINA

MAMBALILI

NUEVA ERA

VILLA PAZ

VALENTINA

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STA. CRUZ

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STA. INES

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POBLACION

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BARANGAY V

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SAN ISIDRO

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MAC ARTHUR

DIMASALANG SAN ISIDRO

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SAN ISIDRO

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KULAMBUGAN

SAN RAFAEL

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SAN MARTIN

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SAN IGNACIOPULANG LU PASTA. ISABEL

SAN GABRIEL

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SAN GUSTIN

SAN TEODORO

BAYUGAN III

NEW VISAYAS

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SAN VICENTE

DOÑA MAXIMA

DOÑA FLAVIA

SAN NICOLAS

SAN AGUSTIN

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SAN VICENTE

SAN JOAQUIN

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SALIMBOGAON

SAN LORENZO

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STA . TERESA

SAN VICE NTE

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BARANGAY III

BU NA SUERTE

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Luna

Maica

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Logum

Baubo

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Latay

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Batas

Supon

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Hupas

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Gesok

Curva

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AceroBayog

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Basag

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Tadasi

Cebole

Durian

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Mahabu

Isdaon

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Camp 8

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Dungga

Tugpan

Kiduay

Auro ra

Manawe

Guit as

Barobo

Guitas

Agnaya

Palibo

Nyholm

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Durian

Mabini

Moreca

Burgos

Goshen

Leogos

Tambis

Agsabo

Panyas

Daonon

Hib ron

Tagapo

Taytay

Maitom

Puntod

Maputi

Pahion

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Mactan

Mabaha

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Mabuhay

Mabuhay

Baclisi

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Antonio

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Agsaway

Vergara

Mambuco

BabuyanGu ivara

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Babadan

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Masapia

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Batinga

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KiandagMagbuya

Tawilon

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Mabuhay

Triumph

Mantood

Panghan

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Kinayong

Magading

Taglubog

Candavao

Sanacoge

Luzvimin

Condoyon

El Mondo

Pudlasan

Maguimon

Singanan

Masabong

Patindog

TaglikidPodlosan

Estrella

Consuelo

New Cebu

Katuogan

Dinausan

Maligaya

Bantayan

Tabangao

Sta. Ana

Asunsion

Agpangon

Nanaugan

Kagay-ao

Elmugtan

Pa laygon

Minambao

Limbasan

Kandingan

Divisoria

Kauswagan

San Roque

SinapawanGawa gawa

Nueva Era

Tagbulete

La SuerteLapu-Lapu

Bugdangan

Sto. Niño

Nativ idadSta. Cruz

Mansungad

Linatawan

Boboya-on

Mahayahay

Kasapa II

ValentinaBinahanan

Sinog-ang

Katipayan

Padigusan

Valentina

Kuliba-anKinamasan

KaagsamanNew Leyte

Sta . Cruz

New Davao

Banayacon

Linumbaan

Kahayagan

Hagimitan

San Roque

Hagonoyan

Sto. Niño

Malinawon

Manguicao

Binitayan

Kagulo-an

Linatawan

Pundasion

Ferdinand

Cab - cab Yamaticon

Gu inobatan

Nasangaban

Tagbuyawan

Tinangasan

La Tondena

Pagatpatan

Catigbawan

Manlawigan Tomowahong

Pamintigan

Hubanganan

San Miguel

San Isidro

San Isidro

San Atonio

Mag limatok

Sto. Tomas

Mahayonyon

Bantolinao

Bagumbayan

Hampapalay

Hinagdanan

Cabacungan

Panlabuhan

Immacu lada

Pan-ajatan

Alpha Base

San Miguel

Upper Lucad

Calman Bato

Cabinuangan

Sta. Teresa

Hinagtungan

Tambo Lower

San Lorenzo

New Visayas

New Visayas

Larona Mong

Alang-Alang

Jandayugong

Pamanggutan

Maba (Uppe r)

Little Bohol

Lower Mabini

Upper Mabini

Ramos Vi llage

Bagong Silang

Bagong Silang

Upper BaliwagVilla Hermosa

New Tiniwisan

Sta. Teresit a

Old Sto. Niño

Ilang - Ilang

Emelda Vi llage

Rajah Kabungsuan

PROTECTION AREASProduction AgriculturalProtection BufferProtection ForestProtection wetlandRoadPinagalaan Watershed

3. PDPFP Protection Maps


Table 2: List of Watershed Areas

Name of Watershed Status Location Total Area (Ha)

Andanan WatershedProclaimed WFR w/ PP No. 734 dated 5/29/1991

Bayugan, Esperanza and Sibagat 74,266.00

Duangan Watershed Local declaration on process Esperanza 17.59

Taonaga Watershed Local declaration on process Prosperidad 607.00

Maputi Watershed Local declaration on process Rosario 2,760.00

Masabong Watershed Local declaration on process Rosario 31.00

Mt. Magdiwata Watershed

Local declaration on process San Francisco 1,658.00

Pangyan Watershed Local declaration on process Trento 12,784.00

Dumagoo Watershed Local declaration on process Trento 5,313.00

Alfred WatershedProclaimed WFR w/ PP N0. 1236 dated 5/29/1998

Bunawan 100.00

El Rio Waterhed Local declaration on process Elrio, Sibagat 31.00

Sinobong Watershed Barangay Declared Sinobong, Veruela 264.77

Source: PENRO-DENR, Forest Management – PENRO-LGU, ADS and PPDO


Table 3: Tree Parks

Type of Tree Park Location Area (Hectares)Provincial Tree Parks Provincial Government Center 2

Municipal Tree ParkPoblacion, Sibagat 1

Bentahon, Esperanza 3

Barangay Tree Parks Sta. Irene, Prosperidad 1

Mt. Carmel, Bayugan 1

New Visayas, Trento 1

Table 4: Natural Significant Sites for Eco-Tourism

Significant Sites LocationWaterfalls1. Camponay Waterfalls Tabon-tabon, Sibagat2. Tagubay Waterfalls Tagubay, Bayugan3. Hagintam Falls Mt. Carmel, Bayugan4. Murahya Falls Mt. Ararat, Bayugan5. Lukot Falls Sto. New Bohol, Calaitan, Bayugan6. Bayugan Falls Hamogamaway, Bayugan7. Haran Falls Getsemanie, Bayugan8. Motong Lake and Falls La Paz9. Pinagatan Falls New Tubigon , Sibagat10. Andanan Falls Km. 11, Calaitan , Bayugan11. Kago Falls Andanan, Bayugan12. Wadukan Falls Getsamane, Bayugan13. Nyholm Falls Rosario14. Bega Falls Mabuhay, Prosperidad15. Tandawan Falls Bayugan 3, Rosario16. Maghilot Falls Bayugan 3, Rosario17. Togonon Falls La Purisima, Prosperidad18. Sinai Falls Sinia, Sibagat19. Wadukan Falls Getsemane, Bayugan20. Mt. Diwata Falls # 1 San Francisco21. Mt. Diwata Falls # 2 San Francisco22. Mt. Diwata Falls #3 San Francisco23. Mt. Diwata Falls #4 San Francisco24. Mt. Diwata Falls #5 San Francisco25. Mt. Diwata Falls #6 San Francisco26. Mt. Diwata Falls #7 San Franciso27. Taonaga Falls Taonaga, Magsaysay, Prosperidad


Significant Sites Location28. Kalingan Falls Kaligayan, Consuelo, Bunawan29. Masapia Falls Consuelo, BunawanLakes1. Danao Lake Km. 11, Calitan, Byugan2. Daking Napo Lake Piglawigan, Bayugan3. Wasian Lake Wasian , Rosario4. Lake De Oro Guadalupe, Esperanza5. Lake Mihaba San Marcos, Bunawan6. Lake Ticgon San Marcos, Bunawan7. Lake Kalobidan San Marcos, Bunawan8. Lake Kayawanon San Marcos, Bunawan9. Lake Kangno San Marcos, Bunawan10. Dinagat Lake Panlabuhan, Loreto11. Kabasayon Lake Panlabuhan, Loreto12. Bukogon Lake Panlabuhan, Loreto13. Kaninbaylan Lake Panlabuhan, Loreto14. Mambaongon Lake Poblacion, La Paz15. Buod Lake Poblacion, La Paz16. Malingin Lake Poblacion, La Paz17. Kaindayo Lake Poblacion, La Paz18. Kasamuligan Lake Poblacion, La Paz19. Kayanitan Lake Poblacion, La Paz20. Casawanagn Lake La Flora, Talacogon21. Tugno Lake La Flora, Talacogon22. Ginhalinan Lake La Flora, Talacogon23. Lake Himbang Poblacion, Talacogon24. Talacogon Lake Poblacion, Talacogon25. Motong Lake Lapaz, Agusan del Sur26. Binoni Lake Disamparados, Talacogon27. Palabuhan Lake Loreto, Agusan del Sur Caves 1. Latay Cave Marfil, Rosario2. Kioya Cave Kioya, Sibagat3. Paniki CAVE Km. 24, San Juan, Bayugan4. Breathing Pinagalaan, Bayugan5. Puting Bato Cave Calaitan, Bayugan6. Tumuahong Cave Sta. Cruz, Rosario7. New Davao Cave San Jose, Prosperidad8. Subterranean Cave Poblacion, Prosperidad9. Kalingayan Cave Bayugan 3, Rosario10. New Hinagdanan Cave Makiangkang, Bayugan11. Pagas Cave Lucac, San Francisco12. Datu Anawa Kalipay Lucac, San Francisco13. Tandawan Cave Bayugan 3, Rosario


Significant Sites Location14. Bugtong Bukid Cave Bayugan 3, Rosario15. Pangyan Cave Pangyan, Trento16. Wasian Cave Wasian, Rosario17. Sinuropan Cave Maica, Trento18. Sisimon Cave Sisimon, Veruela19. Bitan-agan Cave Bitan-agan, San Francisco20. Pilo Cave Afga, Sibagat,21. Felipe Cave Sibagat22. Maximo Cave Sibagat23. Jun-Jun Cave Sibagat24. Junel Cave Sibagat25. Edwin Cave Sibagat26. Bobby Cave SibagatPEAT LANDCaimpugan Peatland Caimpugan, San Francisco

Table 5: Ancestral Domain

Municipality

No. of Barangay Covered

Date Approved

Surveyed Area

(Ha)

No. of right holde

r

Tribe CADT No.

Survey No.

Remarks

Talacogon 4 9/3/2008 13,969 3,439 Manobo R13-TAL0908-

077

Ads-13020005

-Gni

With LRA,CNO transmital to DAR DENR for re-projection on 4/29/2009

Rosario 6 9/3/2008 22,581.33 3,690 Manobo R13-ROS0908

-078

Ads-13020006

-Gni

Transmittal to LRA for re projection and requuest for the issuance of certificate of non -overlap on 9/30/2009

San Luis 1 (Binucalan

)

9/3/2008 25,895.05 2,689 Manubo,

banwaon

R13-SLU 0908-078

Ads-1302 0004-Gni

CADT registered ta ROD 5/07/10

Veruela 18 11/7/2008 30,453.77 5,304 Manobo R13-VER1108-

089

Ads-13020007

-Gni

Transmittal to LRA for projaction transmitted to DAR and DENR for re-projection.

Loreto 2 (Poblacion

and

11/7/2008 5,020.01 2,841 Manobo R13-LOR1108-

Ads-13020008

With LRA and CNO transmittal to DAR & DENR for re-projection


Municipality

No. of Barangay Covered

Date Approved

Surveyed Area

(Ha)

No. of right holde

r

Tribe CADT No.

Survey No.

Remarks

Katipunan)

090 -Gni on 04/29/09

Sibagat 13 11/13/2008 51,000.00 6,435 Manobo R13-SIB1108-

093

Ads-13020011

-Gni

For projection to LRA on 11/23/09

La Paz 5 6/18/2009 67,577.92 3,000 Manobo R13-LAP0609-

117

Ads-13020014

-Gni

With LRA certification TD sent to RO/PO for publication on 10/12/09

Bunawan 4 9/23/2009 29,830.52 8,436 Manobo R13-BUN0909

-136

Ads-13020012

-Gni

Transmitted to LRA for projection on 11/19/09, TD endorsed to PO for publication.

Rosario 5 Brgy. 12/22/2009 1,971.62 341 Manobo R13-ROS1209

-142

Ads-13020018

-Gni

Transmitted to LRA for projection on 11/19/09, TD endorsed to PO for publication.12/8/2009 TD endorsed to RO/PO for publication on 10-16-09 undergone and second reading on 9/9-10/09. However no approved WFP no SPA.

Total 248,299 36,175

2.3. Characteristics of the Study AreaAgusan del Sur is prone to several geologic and natural hazards that include earthquakes, major mass movements (soil erosion) and flood occurrence. The municipalities of La Paz, Loreto, Talacogon, Esperanza, San Francisco, Bunawan, San Luiz and Veruela are prone to flood and landslides. The Hazard and Flood Map is shown in Figure 3.


Figure 3: Hazard Map

HAZARD MAP

RoadsPrimary Nat'l. Rd.Secondary Nat'l. Rd.Provincial Rd.Municipal Rd.Barangay Rd.Nia Rd.Private Rd.

#Y Municipal pointsMun. Boundary

LEGEND :

MIS

. OR

IEN

TAL

N

6 0 6 12

KilometersSCALE 1 : 750,000

MAP OF THE PHILIPPINES

LU Z O N

VI S A YA S

M IN D A N A O

LOCATION MAP

P R O V I N C E O F C O M P O S T E L A V A L L E Y

RO

VIN

CE

OF

Agusan del Sur

Source :

Note :

1. PPDO Road Network Map2. Caraga Rivers and Creeks Map

This map is subject to validation, users notinger rors or ommission are urged to inform the PPDO - GIS Section.The PPDO is not responsible for any errors orliabilities that may arise from using this map.

Layout by : PPDO - GIS Section

#Y

#Y

#Y

#Y

#Y

#Y

#Y

#Y

#Y

#Y

#Y

#Y#Y

#Y

TRENTO

LORETO

LA PAZ

SIBAGAT

BAYUGAN

ROSARIO

BUNAW AN

VERUELA

SAN LUIS

TALACOGON

ESPERANZA

PROSPERIDAD

STA. JOSEFA

SAN FRANCISCO

8°00

' 8°00'

8°10

' 8°10'

8°20

' 8°20'

8°30

' 8°30'

8°40

' 8°40'

8°50

' 8°50'

9°00

' 9°00'

9°10

' 9°10'

125°20'

125°20'

125°30'

125°30'

125°40'

125°40'

125°50'

125°50'

126°00'

126°00'

126°10'

126°10'

126°20'

126°20'126

126

8 8

9 9

Floodprone Fault LineSoil Erosion


Figure 4: Flood Hazard Map

Loreto

La Paz

Trento

Esperanza

San Luis

Sibagat

Talacogon

Bayugan

Prosperidad

Bunawan

Rosario

Veruela

San Francisco

Sta. Josefa

Sab od

Kas ap a

Ly di a

Angel e s

Kas ap a II

Sta Ma ri a

Zil lo v ia

Ma ha gs a y

Pa di ay

Bi n ica l an

Des am pa rados

Ma nat

Imel da

Mi l ag ros

Ags abo

Na to

Bay u gan III

Sta Rita

Was ian

Balu bo

Co mo ta

Mar fil

Buna guit

Pob laci on

San M artin

Gui bono n

San Is idr o

Sta Cr uz

Co ns u el o

Ta gbali l i

Sa lug

Maha y ahay

Kin am aybay

Sa n M ari an o

New Tu bigon

Ma te

Pe re z

Pol ic arpo

Kula mb ogan

Pa ng yan

La P uris ima

Ma as i n

Oro

Sa n Andres

Seg un da

Sto . Ni ño

San Vi c en te

Anita p

Ca im p ug an

Afg a

Cau s wag an

Tan dang S ora

Mam bal i l i

Sa n M arc o s

No v el e

Si nakung an

Nue v a Era

Ka lab uan

Tah ina

Tude la

Au rora

Sa l vac ion

San Pe dro

Del Mo nte

Buna wan B rook

Sta Te res a

Bal it

Bana gban ag

Awao

Mt. C arm e l

Anga s

Bi nucay a n

Ebro

Sta, Iren e

Aos Arc os

Kau s wag an

Pas ta

Ba s a

Caba nta o

Si nob ong

San Lorez o

Haw ili a n

Al eg ria

John s on

Nuev o Trabaj o

Bac a y

San J ua n

Mt. A ra rat

Patin ay

La F ortun a

Ri z a l

Wal oe

New Vi s ay as

Ili han

Villa P a z

Mag audVal entina

New Sal em

Sa waganCu ev a s

Sta . In i s

Dua nga n

Bers eb a

San G rabrie l

Vill a ngi t

Mag sa y s a y

Ba k ing K i ng

Ba taa n

Verdu

Ka patun gan

Lib erta d

Fil i

Li m ot

Ma buh ay

Bu enas uer teMar bon

Borbon

Pa g-a s a

Si nai

San J ose

Sta . M aria

Sta Im elia

La ngk il aa n

Pi sa- an

Ma r cel ina

Tapaz

Os m eñ a Sa ban g Adgawa n

Tag apua

Say on

Maha r lik a

Ce bol in

La F lo r a

Nue v a G ra ci a

Coa l ici o n

Sta Is ab el

Orma c a

Sto Tom as

Nol i

La U nio n Luc ena

Pi nag alaa n

Map aga

Awa

Patro c in io

San Teo doro

Sagu nto

Tag abas e

San Roqu e

Con c ord i a

Sam pagu ita

San Jo aqui n

Mas ay an

Cal a i ta n

Sisi mo n

Ba y ugan 2

Boc ac

Nap o

Buen a Gr aci a

Sta. Irene

El Rio

Katip unan

Ana hawan

Bi non gan

Zam ora

Ba ylo

Tag ub ay

Ca iga nga n

Kioya

Luc a c

Guad al o pe

Az petia

La P eria n

Lap i n ig an

Cebu la n

La nga si a n

Dac utan

Cu li ram

San To ri b i o

Tab ontabon

Mt. O li v e

La dgada n

Mah ay ag

Pul a ng _Lupa

Tag bayaga n

Vio la nta

Lan gag

Saban g Gibo ng

Lab ni g

New Ma ug

Wa w a

Ano lin gan

San M ateo

Libu ac

Ga mo

Hala pitan

Ba tuc an

Mur itu la

Cul i

Sta Fe

Sa gum a

Geth s em ane

Las N av a s

Das -aga n

Ch ari to

San Rafael

Ne w Gi ngo og

Do n Al i ja ndro

Sa gm one

Cec i ll a

Cl a ro C ortes

San Ni c o l as

Anisl aga n

De l Ro sa rio

Ma gk a lap e

Salim b ogaon

Hu ba ng

Dim as alan gSantiag o

Lab ao

Pi g law ig anRem edi o s

Mac A rthur

Sta. Te res i taCa gb as

San Pa tri c i o

La C ari da d

Con c ep tion

Candi is

Doña Fl av ia

May gatas a n

Mo nte V is ta

La S u erte

Pa naytay

Ham og awa y

Ma gk i an gk a ng

Mah agk o t

San Sal v ad or

Bi ta n-a gan

Cabawan

Tag lib as

Vi lla U nda yon

Od ion g

Sa n Ig na cio

San Agu s tin

We ggu am

Can ay uga n

Sta. An a

Cros s in g L una

Kara os

Tag-o yan go

Grac e E sta te

Cu bo

Bentah on

Agui nald o

Tagla ta w a n

Mal i gay a

Doñ a M ax im a

Tag-an ahaw

Ba ran gay 1

Maha pag

N

rov

Province of Compostela Valley

10 0 10

Kilometers

5

Flood hazard map.shpAlmost flooded tSeverely flooded Moderately flooded Slight seasonal No Flooding Observed

Provincial RoadSecondary RoadPrimary RoadBarangay BoundaryMunic ipal Boundary

FLOOD HAZARD MAP

LEGEND :

Agusan del Sur

SOURCE : BSWM


2.4. Disaster Risk ReductionAgusan del Sur identified six hazards that could possibly be experienced by the province, but the yearly hazards that occurred and incurred damages are floods, rain-induced landslide, and ground rupture.

Areas within Agusan Marsh and along rivers are the areas prone to flooding but could not experience flash floods because it is a catch basin of the waters from Compostela Valley, Bukidnon, and Surigao provinces. It covers a total area of 110,069 hectares, absorbing flood waters during long rainy seasons that happen from October to February.

Areas within 50o slopes and above which are present in the 13 municipalities are areas prone to rain-induced landslide as shown in the hazard map and in tables affected by landslides.

2.5. FloodingOn flooding and rain-induced landslides, the province aims to manage a fatality of one person per one hundred thousand populations. As shown in the computation on fatality (see Table 6), the province will manage to fall on Level 1, (less than l fatality per 100,000 population in a year). On vulnerability level, a number of barangays are considered as highly vulnerable thus initiatives will be done to mitigate such risk particularly by the Local Disaster Risk Reduction and Management Office. Table 7 shows the population and barangay at risk during flooding.

Table 6: Level of Prioritization for Risk Estimate to Life on Flooding

Level Value Description Priority

1 0.0 to 0.00001 Less than 1 fatality in 100,000 Population per year 5 (Very Low)

2 0.00001 to 0.0001

1 to 10 fatalities in 100,00 Population per year 4 (Low)

3 0.0001 to 0.001 1 to 10 fatalities in 1,000 Population per year 3 (Moderate)

4 0.001 to 0.01 1 to 10 fatalities in 100 Population per year 2 (High)

5 0.01 to <max> 1 to <max> fatalities in 10 Population per year 1 (Urgent)


Table 7: Hazard Levels of Municipalities and Barangays

Municipality/Barangay Popul

ation

Land Area sq.km

PopDensity

Vulnera-bility

HazardArea sq.km

Conse-quence

PopulationAt Risk

Priority

Bayugan

Poblacion 16913 2.9 5832 High 2.89303

1.68721510

0.0188200 1 Urgent

Maygatasan 3663 6.33 670 High 6.33363

0.38635149

0.0041700 2 High

Noli 3427 6.12 560 High 6.08924

0.34099778

0.3509900 2 High

Salvacion 5080 11.47 443 High 11.46980

0.33534540

0.0036200 2 High

Taglatawan 12259 2.79 4394 High 0.58250

0.25595314

0.0027600 2 High

Sagmone 2043 2043 300 Med 6.15021

0.12177430

0.0013100 2 High

Prosperidad

Lucena 2209 11.54 287 Med 9.63124

0.18243508

0.0019700 2 High

Patin-ay 7697 21.09 365 Med 4.91508

0.11840440

0.0012780 2 High

La Caridad 1519 5.83 261 Med 5.83357

0.10048915

0.0010850 2 High

San Francisco

Barangay 3 2933 1.19 2465 High 1.01322

0.24976021

0.0026970 2 High

Barangay 5 4500 2.08 2163 High 0.45725

0.09890469

0.0010680 2 High

Rosario

Bayugan 8360 77.07 108 Low 2.62159

0.11539980

0.0012463 2 High

Bunawan

Libertad 6605 17.5 377 Med 17.48330

0.43502000

0.0046982 2 High

San Teodoro 6988 19.97 350 Med 6.62584

0.15305690

0.0016530 2 High

Poblacion 4108 26.28 156 Low 26.27590

0.13526830

0.0014609 2 High

Trento

Kapatungan 3378 26.04 130 Low 25.65380

0.11005520

0.0011886 2 High

Poblacion 17664 27.12 651 High 16.71610

1.08822280

0.0117526 1 Urgent

Veruela

Sampaguita 5698 17.2 331 Med 8.82947

0.19288850

0.0020830 2 High

Poblacion 5237 26 201 Low 24.15270

0.16020530

0.0017302 2 High

Loreto

Poblacion 5912 73.47 80 Low 52.43000

0.13841530

0.0014949 2 High

La Paz

Poblacion 4391 40.77 108 Low 39.19780

0.13970100

0.0015087 2 High

Talacogon

San Agustin 3217 3.93 819 High 3.993080

0.32211950

0.0013265 2 High

Labnig 2925 6.81 430 Med 6.09533 0.1910129 0.0010 2 High


Municipality/Barangay Popul

ation

Land Area sq.km

PopDensity

Vulnera-bility

HazardArea sq.km

Conse-quence

PopulationAt Risk

Priority

0 0 521

Zamora 1112 9.63 115 Low 31.143200

0.11818850

0.0012764 2 High

San Luis

Dona Flavia 2432 4.63 503 High 2.34845

0.12282400

0.0013265 2 High

Esperanza

Poblacion 4129 5.02 823 High 4.94498

0.40697240

0.0043952 2 High

Dacutan 2709 9.74 2.78 Med 9.74007

0.17871090

0.0019300 2 High

Catmonton 1426 3.21 444 Med 3.21039

0.09407730

0.0010160 2 High

Santa Fe 1411 5.29 267 Med 5.28699

0.09316730

0.0010062 2 High

2.6. Rain-induced Landslide and Ground MovementAlmost all the barangays of the municipality of Sibagat are prone to landslide. It could be observed that portion of the National Highway located in the municipality have been under repair due to landslide and ground movement. Other landslide prone municipalities are Bayugan, Esperanza, San Francisco, La Paz, Loreto, Bunawan, and Prosperidad.

To reduce risk, hazard prone areas should not be used for settlement; but as shown in the hazard maps, these are regular barangays that are within the landslide prone areas. On areas like these, preparedness plan should be effected to avoid fatality, loss of crops and properties. All the 314 barangays of Agusan del Sur are within levels 3, 4 and 5.

Table 8: Level of Prioritization for Risk Estimate to Life on Rain-Induced Landslide

Level Value Description Priority

1 0.0 to 0.00001 Less than 1 fatality in 100,000 Population per year 5 (Very Low)

20.00001 to

0.00011 to 10 fatalities in 100,00 Population

per year 4 (Low)

3 0.0001 to 0.001 1 to 10 fatalities in 1,000 Population per year 3 (Moderate)

4 0.001 to 0.01 1 to 10 fatalities in 100 Population per year 2 (High)

5 0.01 to <max> 1 to <max> fatalities in 10 Population per year 1 (Urgent)


Table 9: Level of Prioritization for Risk Estimate to Life on Rain-Induced Landslides

MUNICIPALITY/ BARANGAY

POPULA-TION

LAND AREA

(Sq Km)

POPULATION

DENSITY

VULNERABILI

TY LEVEL

HAZARD AREA (Sq Km)

CONSE-QUENCE

POPULA-TION RISK

PRIORITY

Sibagat 1 Tabontabon 2741 13.33 206 Low 5.60 0.0494874

50.000534

463 (Moderate)

2 Kolambugan 1695 64.33 26 Low 35.98 0.04013640

0.00043347

3 (Moderate)

3 Padiay 1731 141.01 12 Low 52.35 0.02695114

0.00029107

3 (Moderate)

4 San Isidro 922 30.51 30 Low 16.43 0.02114741

0.00022839

3 (Moderate)

5 New Tubigon 1332 73.43 18 Low 26.37 0.02036149

0.00021990

3 (Moderate)

6 Magsaysay 1046 7.10 147 Low 2.83 0.01787245

0.00019302

3 (Moderate)

7 Sta Maria 600 16.09 37 Low 10.72 0.01701862

0.00018380

3 (Moderate)

8 Villangit 945 17.65 54 Low 5.39 0.01247932

0.00013478

3 (Moderate)

9 Sta Cruz 472 20.15 23 Low 8.43 0.00831352

0.00008979

4 (Low)

10 Kioya 680 6.60 103 Low 1.84 0.00813549

0.00008786

4 (Low)

11 Perez 933 31.67 29 Low 6.09 0.00758193

0.00008188

4 (Low)

12 Magkalape 190 6.90 28 Low 6.14 0.00737680

0.00007967

4 (Low)

13 El Rio 1287 7.65 168 Low 1.01 0.00728826

0.00007871

4 (Low)

14 Afga 3160 19.54 162 Low 0.48 0.00333925

0.00003606

4 (Low)

15 Banagbanag 739 41.00 18 Low 3.76 0.00290558

0.00003138

4 (Low)

16 Del Rosario 318 7.45 43 Low 1.31 0.00240763

0.00002600

4 (Low)

17 Mahayahay 1407 8.94 157 Low 0.16 0.00110586

0.00001194

4 (Low)

18 Tag-oyango 626 4.27 147 Low 0.15 0.00096742

0.00001045

5 (Very Low)

Bayugan 1 Taglatawan 12259 2.79 4394 High 0.57 0.3235064

50.003493

872 (High)

2 Calaitan 2280 10.90 209 Low 8.33 0.07470625

0.00080683

3 (Moderate)

3 San Juan 3344 24.59 136 Low 7.50 0.04377759

0.00047280

3 (Moderate)

4 Sto. Ni±o 1865 43.10 43 Low 21.38 0.03943733

0.00042592

3 (Moderate)

5 Sta. Irene 2508 12.46 201 Low 4.46 0.03842837

0.00041503

3 (Moderate)



POPULA-TION

LAND AREA

(Sq Km)

POPULATION

DENSITY

VULNERABILI

TY LEVEL

HAZARD AREA (Sq Km)

CONSE-QUENCE

POPULA-TION RISK

PRIORITY

6 Mt. Carmel 2255 35.04 64 Low 13.80 0.03789930

0.00040931

3 (Moderate)

7 Berseba 1951 18.96 103 Low 8.27 0.03655648

0.00039481

3 (Moderate)

8 Mt. Olive 1547 9.93 156 Low 4.85 0.03243694

0.00035032

3 (Moderate)

9 Pinagalaan 1187 17.49 68 Low 9.21 0.02686932

0.00029019

3 (Moderate)

10 Tagubay 735 10.47 70 Low 7.33 0.02201245

0.00023773

3 (Moderate)

11 New Salem 590 26.74 22 Low 13.73 0.01295495

0.00013991

3 (Moderate)

12 Claro Cortes 575 8.88 65 Low 4.14 0.01155772

0.00012482

3 (Moderate)

13 Grace Estate 529 4.69 113 Low 1.62 0.00786561

0.00008495

4 (Low)

14 Mahayag 660 9.89 67 Low 2.65 0.00762775

0.00008238

4 (Low)

15 Hamogaway 1346 5.98 225 Low 0.75 0.00719958

0.00007776

4 (Low)

16 Villa Undayon

1227 5.95 206 Low 0.81 0.00718858

0.00007764

4 (Low)

17 Wawa 971 5.82 167 Low 0.89 0.00635791

0.00006867

4 (Low)

18 Getsemane 372 10.22 36 Low 4.02 0.00620555

0.00006702

4 (Low)

19 Magkiangkang

1693 6.91 245 Low 0.21 0.00225663

0.00002437

4 (Low)

20 Fili 2441 6.20 394 Medium

0.01 0.00049518

0.00000535

5 (Very Low)

21 Mt. Ararat 619 25.86 24 Low 0.01 0.00001000

0.00000011

5 (Very Low)

Prosperidad 1 La Purisima 2286 59.18 39 Low 8.20 0.0137157

20.000148

133 (Moderate)

2 Sta Irene 5832 30.81 189 Low 1.56 0.01268494

0.00013700

3 (Moderate)

San Francisco 1 San Isidro 2933 11.02 266 Mediu

m2.06 0.0470441

50.000508

083 (Moderate)

2 Alegria 5209 19.48 267 Medium

1.88 0.04312261

0.00046572

3 (Moderate)

3 Bayugan 2 4166 13.91 299 Medium

0.35 0.00908038

0.00009807

4 (Low)

4 Karaos 2625 2.59 1014 High 0.06 0.00731324

0.00007898

4 (Low)

5 Ormaca 697 12.74 55 Low 0.25 0.00057943

0.00000626

5 (Very Low)



POPULA-TION

LAND AREA

(Sq Km)

POPULATION

DENSITY

VULNERABILI

TY LEVEL

HAZARD AREA (Sq Km)

CONSE-QUENCE

POPULA-TION RISK

PRIORITY

Rosario 1 Bayugan 3 8,360 77.07 108 Low 2.29 0.0431226

10.000465

723 (Moderate)

2 Sta Cruz 5146 57.22 90 Low 6.25 0.02414969

0.00026082

3 (Moderate)

3 Marfil 1,850 39.47 47 Low 3.68 0.00813549

0.00008786

4 Wasian 3239 48.81 66 Low 0.00 0.00000448

0.00000005

5 (Very Low)

Bunawan 1 Bunawan

Brook4795 54.40 88 Low 1.86 0.0070070

20.000075

684 (Low)

2 Imelda 1395 74.40 19 Low 2.75 0.00223830

0.00002417

4 (Low)

Trento 1 Pangyan 667.00 44.66 14.94 Low 4.3300 0.0011058

60.000011

944 (Low)

2 Salvacion 1831.00 36.06 50.78 Low 2.8200 0.00096742

0.00001045

5 (Very Low)

Loreto 1 Kasapa 2768 495.48 6 Low 99.90 0.0257141

50.000277

713 (Moderate)

2 Sabod 961 441.99 2 Low 123.96 0.01063606

0.00011487

3 (Moderate)

3 San Mariano 1833 70.56 26 Low 0.24 0.00027290

0.00000295

5 (Very Low)

La Paz1 Valentina 2082 17.63 118 Low 5.48 0.027756

690.000299

773 (Moderate)

2 Angeles 999 643.53 2 Low 266.23 0.02284228

0.00024670

3 (Moderate)

3 Kasapa II 825 352.51 2 Low 179.27 0.01538128

0.00016612

3 (Moderate)

Esperanza 1 San Vicente 586 55.58 11 Low 33.12 0.015628

070.000168

783 (Moderate)

2 Guibonon 659 69.71 9 Low 26.94 0.01040194

0.00011234

3 (Moderate)


2.7. Ground RuptureOn underground rupture, the river municipalities are within the major fault lines. These are the municipalities of Esperanza, San Luis, Talacogon, La Paz, Loreto, and Veruela.

Sibagat, San Francisco, Prosperidad are also affected by ground rupture due to geological contacts, which are observed in the National Highways. Lianga fault connects Bayugan passing through Prosperidad to the municipality of Lianga.

On risk management, settlements and infrastructure projects should not be constructed near fault lines.

2.8. LiquefactionOn liquefaction, the Talacogon Lake is identified to be prone to liquefaction with the major fault line traversing the lake.

2.9. DroughtThe province seldom experienced drought due to its geographical location, climate and rainfall pattern.

Table 10: Summary of Frequency and Occurrence

Main Causal Agent Hazard Frequency

Meteorological/hydrological FloodRain induced landslide

1 per year & 1 every 10 years1 per year

Geological (earthquake) Ground raptureLandslideLiquefaction

1 per 5 years 1 per 20 years1 every 5 years


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