II NN DD EE XX MM AA PP :: DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 125°25'0"E 125°30'0"E

4019-I-4 4019-I-5 4119-IV-1 JABONGA, ;

KITCHARAO AND MALIMONO AND MAINIT, 4019-I-9 4019-I-10 4119-IV-6 9°25'0"N 4019-I-10 BUNGA QUADRANGLE 9°25'0"N JABONGA

125°27'0"E 125°28'0"E 125°29'0"E 125°30'0"E 4019-I-15 4119-IV-11

Purok III Mahogany (Karihatag)# 125°25'0"E 125°30'0"E 9°27'0"N 9°27'0"N

Purok IV Malbago (Karihatag)# 0 2 1 Karihatag Elem. School #P n( ) KARIHATAG Purok VII# Naga (Karihatag)# μ 0120.5

Kilometers

4

8

0

0 0 0 0 5 1 LL E G E N D : Main road POBLACIONP! center location

So. Magaling Secondary road ()# Purok/Sitio location (Barangay)

180 3 40 Track; trail n

0 School

8

4 River v® Hospital

Municipal boundary G Church Purok IB Purok II 0 500 0 (Bunga) (Bunga) 5 # # 80 Contour (meter) Proposed relocation site BUNGA 2 0 60 P 6 0 4 2 4

Purok IA (Bunga) Landslide 0 # 52 9°26'0"N

9°26'0"N Very high landslide susceptibility

0

0 3 2 8 0 1 Areas usually with steep to very steep slopes and underlain by 3 0 0 5 0 32 0 0 0 4

0 6 0 4 1 1 weak materials. Recent landslides, escarpments and tension cracks are present. Human initiated effects could be an aggravating factor. High landslide susceptibility 260

2

0

0 40 0 Areas usually with steep to very steep slopes and underlain by

4 0 Purok III Sitio Kayatoog 5 (Bunga)# weak materials. Areas with numerous old/inactive landslides.

4 1 Moderate landslide susceptibility 80 80 Areas with moderately steep slopes. Soil creep and other indications of possible landslide occurrence are present. 480

Low landslide susceptibility Gently sloping areas with no identified landslide.

0 24 Debris flow / Possible accumulation zone Areas that could be affected by landslide debris.

4 4 0 Active landslide >>>D Creep 0 2 2 280

2 Inactive landslide Tension crack 0

Landslide area with mitigating measure HHHGully

///Rock fall/Rock slide prone area Riverbank erosion 5 0 0

Purok I Old landslide deposits

(San Vicente) 9°25'0"N # 60 9°25'0"N Recent landslide deposits

220

0 32 Areas susceptible to ground subsidence/sinkhole development

100 Flood

22 440 0 Very high flood susceptibility

4 4 3 8 6 0 0 0 Areas likely to experience flood heights of greater than 2 meters and/or flood duration of more than 3 days. 500 These areas are immediately flooded during heavy rains of several hours; include landforms of topographic lows MINDANAO SEA

5 such as active river channels, abandoned river channels 0 0 SAN VICENTE and area along river banks; also prone to flashfloods. P Purok V (San Vicente)# Purok VI High flood susceptibility (San Vicente)# 0

2

5 Areas likely to experience flood heights of greater than 1 up to 50 0 2 meters and/or flood duration of more than 3 days. These areas are immediately flooded during heavy rains 5 0 0 2 0 5 8 of several hours; include landforms of topographic lows 0 such as active river channels, abandoned river channels 0 4 5 and area along river banks; also prone to flashfloods.

5

2 0 Moderate flood susceptibility Areas likely to experience flood heights of greater than 0.5m up to 1 meter and/or flood duration of 1 to 3 days. These 0 46 areas are subject to widespread inundation during prolonged and 3 00

Purok VIII 0 extensive heavy rainfall or extreme weather condition. Fluvial terraces, 4 (San Vicente)# 5 alluvial fans, and infilled valleys are areas moderately subjected to flooding. 9°24'0"N 9°24'0"N 125°27'0"E 125°28'0"E 125°29'0"E 125°30'0"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

Direction of ! Mapping scale 1:10,000 Flashflood exit point ? % ALL RIGHTS RESERVED GIS Processing : receding floodwater PUBLISHED DECEMBER 2015 Lands Geological Survey Division