Detailed Landslide and Flood Hazard Map of Malimono And

II NN DD EE XX MM AA PP :: 125°25'0"E 125°30'0"E

PLACER DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 4020-II-13 4020-II-14 4020-II-15 MALIMONO AND MAINIT, SURIGAO DEL NORTE, PHILIPPINES

MAINIT 9°35'0"N 9°35'0"N MALIMONO 4020-II-19 BUNYASAN QUADRANGLE 4020-II-19 4020-II-20

125°24'0"E 125°25'0"E 125°26'0"E 125°27'0"E 4020-II-24 4020-II-25

7 6 7 0 0 4 0 0 5 125°25'0"E 9°36'0"N 9°36'0"N

6 0 220 5 80 62 2 0 160 00

0 0 2 2 7 1 μ 0120.5

60 Kilometers

6 0 0 5 6 0

Purok I (Hanagdong)# LL E G E N D : Purok VI POBLACION (Hanagdong)n 7 4 Barangay center location # 0 Main road Purok II P! 0 (Hanagdong) 40 52 Purok V # 0 So. Magaling (Hanagdong)# P Purok III (Poblacion) Purok/Sitio location (Barangay) Purok IV (Hanagdong)# Secondary road # (Hanagdong)# 0 34 Track; trail n School

4 0 6 70

0 River v® Hospital

0 6 7

0 0

2 4 G 7 Church 440 7 Municipal boundary Purok IV (Bunyasan)

# 0 20 8 1 80 Contour (meter) Proposed relocation site Purok III 0 4 Purok II 3 6 (Bunyasan) 0 1 8 6 0 # 0 (Bunyasan)# P 0 BUNYASAN 0 6 660 Purok I Landslide (Bunyasan)# n Bunyasan Elem School ( ) 9°35'0"N 780 9°35'0"N Very high landslide susceptibility 40 0 Purok III 4 n 8 (Cansayong)# Areas usually with steep to very steep slopes and underlain by

CANSAYONG 8 8 2 weak materials. Recent landslides, escarpments and tension 8 P# 6 0 4 0 # 0 Purok I cracks are present. Human initiated effects could be an Purok II (Cansayong)# (Cansayong) aggravating factor. 0 300 4 1 8 00 280 High landslide susceptibility

7 6 0 Areas usually with steep to very steep slopes and underlain by 740 weak materials. Areas with numerous old/inactive landslides. Moderate landslide susceptibility

0 2 0 1 0 1 3 Areas with moderately steep slopes. Soil creep and other 4 8 0 0 0

160 indications of possible landslide occurrence are present.

4 2

0 8 7 0 8 12 0 Low landslide susceptibility Purok I Banana (Masgad) 2 # 60 Gently sloping areas with no identified landslide.

32 0 Debris flow / Possible accumulation zone Areas that could be affected by landslide debris. 80

Masgad National High school >>>D n( ) Active landslide Creep

3 6 0 8 0 0 Inactive landslide Tension crack MASGADP Purok V Atis (Masgad) HHH # Landslide area with mitigating measure Gully Purok IV Panaghiusa (Masgad) MINDANAO SEA /// 5 Rock fall/Rock slide prone area Riverbank erosion 4 Purok VI Marang 0 (Masgad)# 460 Old landslide deposits 9°34'0"N

0 9°34'0"N 2 4 0 8 Recent landslide deposits Purok VII Mangga 4 0 480 (Masgad) 6 # 3 Areas susceptible to ground subsidence/sinkhole development 3 2 0

8 1 Flood

Purok VIII Boongan (Masgad)# Very high flood susceptibility Areas likely to experience flood heights of greater than 2 meters and/or flood duration of more than 3 days. These areas are immediately flooded during heavy rains of several hours; include landforms of topographic lows such as active river channels, abandoned river channels and area along river banks; also prone to flashfloods. 1 4 0

1 2 0 1 0 High flood susceptibility 0 0 0 1 6 Areas likely to experience flood heights of greater than 1 up to 2 meters and/or flood duration of more than 3 days. These areas are immediately flooded during heavy rains 20 Purok IX Silangan of several hours; include landforms of topographic lows (Masgad) 10 such as active river channels, abandoned river channels # 0

3 and area along river banks; also prone to flashfloods. 2 0 Moderate flood susceptibility Areas likely to experience flood heights of greater than 0.5m up to 28 0 1 meter and/or flood duration of 1 to 3 days. These areas are subject to widespread inundation during prolonged and 140 extensive heavy rainfall or extreme weather condition. Fluvial terraces, 2 160 0 0 18 0 alluvial fans, and infilled valleys are areas moderately subjected to flooding. 9°33'0"N 9°33'0"N 125°24'0"E 125°25'0"E 125°26'0"E 125°27'0"E Low flood susceptibility Areas likely to experience flood heights of 0.5 meter or less and/or flood duration of less than 1 day. These areas include Data Sources : Coordinate System : low hills and gentle slopes. They also have sparse to MGB Geohazard Assessment Team moderate drainage density. DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Spheroid : ...... Clark 1866 Lands Geological Survey Division Projection : ...... Transverse Mercator Geosciences Division MGB Regional Office XIII MINES AND GEOSCIENCES BUREAU Datum : ...... Luzon 1911 Direction of 1.2 National Mapping and Resource Information Authority ? Flood depth (meter) North Avenue, Diliman, Quezon City ? rising floodwater