Detailed Landslide and Flood Hazard Map of Cagwait

II NN DD EE XX MM AA PP :: 126°15'0"E 126°20'0"E

DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 4218-IV-10 4218-I-6 4218-I-7 8°55'0"N 8°55'0"N CAGWAIT, SURIGAO DEL SUR, PHILIPPINES CAGWAIT 4218-I-11 MATE QUADRANGLE 4218-IV-15 4218-I-11 4218-I-12

126°15'0"E 126°16'0"E 126°17'0"E 126°18'0"E MARIHATAG 4218-I-16 4218-I-17

4218-IV-20 8°50'0"N 8°50'0"N

126°15'0"E 126°20'0"E 8°54'0"N 8°54'0"N

Logging Road μ (Tubo-tubo) # 0120.5

Kilometers Buenavista (Tubo-tubo)# TUBO-TUBOP LL E G E N D : Main road POBLACIONP! Barangay center location

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

Track; trail n School

River v® Hospital

Municipal boundary G Church

80 Contour (meter) Proposed relocation site

Landslide 8°53'0"N

8°53'0"N Very high landslide susceptibility Areas usually with steep to very steep slopes and underlain by weak materials. Recent landslides, escarpments and tension cracks are present. Human initiated effects could be an Maribuhok Km VII (Tubo-tubo)# aggravating factor. High landslide susceptibility 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.

Low landslide susceptibility Maribuhok Km VIII (Tubo-tubo)# Gently sloping areas with no identified landslide.

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

Purok IV Active landslide >>>D Creep (Mat-e)# MAT-E Purok III P (Mat-e) # Inactive landslide Tension crack #Purok I (Mat-e)# Landslide area with mitigating measure HHHGully

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

Old landslide deposits 8°52'0"N

8°52'0"N Recent landslide deposits Areas susceptible to ground subsidence/sinkhole development

Flood

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.

High flood susceptibility Areas likely to experience flood heights of greater than 1 up to Purok IV Hapnit (San #Pedro) 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. Moderate flood susceptibility

Purok III Purok I P (San Pedro) Areas likely to experience flood heights of greater than 0.5m up to (San Pedro) # # SAN PEDRO 1 meter and/or flood duration of 1 to 3 days. These Purok II areas are subject to widespread inundation during prolonged and (San Pedro) extensive heavy rainfall or extreme weather condition. Fluvial terraces, alluvial fans, and infilled valleys are areas moderately subjected to flooding. 8°51'0"N 8°51'0"N 126°15'0"E 126°16'0"E 126°17'0"E 126°18'0"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