II NN DD EE XX MM AA PP :: 125°35'0"E

GIGAQ DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 4119-IV-1 ALEGRIA 4119-IV-3 4119-IV-2 KITCHARAO, ,

4119-IV-6 4119-IV-7 4119-IV-8 4119-IV-7 JALIOBONG QUADRANGLE KITCHARAO 9°25'0"N 9°25'0"N

125°33'0"E 125°34'0"E 125°35'0"E 125°36'0"E BONGA4119-IV-11 4119-IV-12 4119-IV-13

Purok V 125°30'0"E 125°35'0"E (Crossing) # Purok IA 9°27'0"N Purok VI 9°27'0"N (Sangay) # (Mahayahay)# Purok I Purok IB (Mahayahay)# (Sangay)#

Purok II (Mahayahay)# MAHAYAHAY#P μ 0120.5 Purok IV (Sangay)# Purok II Purok VIII Kilometers (Sangay)# (Mahayahay)# SANGAYP #

Purok III Purok IV (Sangay) (Mahayahay)# LL E G E N D : Purok VII (Crossing)# Main road POBLACIONP! center location

So. Magaling Purok V () Purok/Sitio location (Barangay) (Mahayahay) Secondary road # # Purok VII (Mahayahay)# Track; trail n School

River v® Hospital

Municipal boundary G Church

80 Contour (meter) Proposed relocation site

Landslide 9°26'0"N

9°26'0"N Very high landslide susceptibility

Purok VII Areas usually with steep to very steep slopes and underlain by (San Roque) # weak materials. Recent landslides, escarpments and tension cracks are present. Human initiated effects could be an aggravating factor.

Purok V High landslide susceptibility (San #Roque) Areas usually with steep to very steep slopes and underlain by weak materials. Areas with numerous old/inactive landslides. Moderate landslide susceptibility Areas with moderately steep slopes. Soil creep and other indications of possible landslide occurrence are present. Purok II (San Roque) # Low landslide susceptibility Purok# I (San #Roque) Purok IV Kitcharao Central Elementary School Gently sloping areas with no identified landslide. (San Roque) n ( ) # P Debris flow / Possible accumulation zone SAN ROQUE Areas that could be affected by landslide debris.

Active landslide >>>D Creep Inactive landslide Tension crack

Landslide area with mitigating measure HHHGully

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

Purok VI (San Roque) Old landslide deposits # 9°25'0"N 9°25'0"N Recent landslide deposits Areas susceptible to ground subsidence/sinkhole development Purok VI (Canaway)# Flood

Very high flood susceptibility Purok II Purok IV Purok V (San Isidro) # # (San# Isidro) (San# Isidro) Areas likely to experience flood heights of greater than PSAN ISIDRO Purok IV Purok I Purok III 2 meters and/or flood duration of more than 3 days. n Purok V (Canaway) (San# Isidro) (San Isidro) # (Canaway)# 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. Purok I (Canaway)# High flood susceptibility

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

Purok I JALIOBONG Moderate flood susceptibility P (Jaliobong)# # Purok IV Areas likely to experience flood heights of greater than 0.5m up to (Jaliobong) Purok II # (Jaliobong) 1 meter and/or flood duration of 1 to 3 days. These # areas are subject to widespread inundation during prolonged and Purok III (Jaliobong) extensive heavy rainfall or extreme weather condition. Fluvial terraces, alluvial fans, and infilled valleys are areas moderately subjected to flooding. 9°24'0"N 9°24'0"N 125°33'0"E 125°34'0"E 125°35'0"E 125°36'0"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 : ...... 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