II NN DD EE XX MM AA PP :: DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 126°0'0"E 126°5'0"E 4117-II-15 BUNAWAN 4217-III-12 BUNAWAN, SANTA JOSEFA, AND 4217-III-11 8°5'0"N TRENTO, AGUSAN DEL SUR, PHILIPPINES 8°5'0"N VERUELA 4217-III-16 4217-III-17 4117-II-20 TRENTO 4217-III-16 KAPATUNGAN QUADRANGLE SANTA JOSEFA 126°0'0"E 126°1'0"E 126°2'0"E 126°3'0"E 4117-II-25 4217-III-21 4217-III-22 126°0'0"E 126°5'0"E 8°6'0"N 8°6'0"N 40 0 4 2 0 Purok IIIB Purok VI (Libertad) # (Libertad)# μ 0120.5 0 2 Kilometers 20 LL E G E N D : Maica Main road POBLACION Barangay center location (Kapatungan)# P! 0 20 So. Magaling 2 (Poblacion) 2 Secondary road Purok/Sitio location (Barangay) 0 # 20 20 Track; trail n 0 School 2 Cahian Purok IV Cahian Purok III Cahian Purok II Cahian Purok I (Kapatungan) (Kapatungan) Purok I # # (Kapatungan) (Kapatungan) n # # (Kapatungan)# River v® Hospital Cahian Elem. School 20 (Kapatungan) 20 Municipal boundary G Church 0 2 0 2 Proposed relocation site 2 80 Contour (meter) 0 20 Purok II Relocation Site Landslide (Kapatungan) Purok II 8°5'0"N 8°5'0"N KAPATUNGAN Purok IV (Kapatungan)# P Very high landslide susceptibility (Pag-asa)# n Kapatungan Elem. School Purok III Areas usually with steep to very steep slopes and underlain by (Kapatungan) (Kapatungan)# Maica Elem. School weak materials. Recent landslides, escarpments and tension Kapatungan Nat'l. High School (Basa)n (Kapatungan) n Maica Elem. School cracks are present. Human initiated effects could be an (Kapatungan) aggravating factor. Purok IV (Kapatungan)# High landslide susceptibility Areas usually with steep to very steep slopes and underlain by weak materials. Areas with numerous old/inactive landslides. Purok V Aurora Elem. School (Kapatungan) # 2 (Aurora)nP 0 Moderate landslide susceptibility PAG-ASA Areas with moderately steep slopes. Soil creep and other indications of possible landslide occurrence are present. Purok VIII Low landslide susceptibility (Kapatungan)# Gently sloping areas with no identified landslide. Purok VII San Antonio (Kapatungan) Debris flow / Possible accumulation zone (Kapatungan)# # Areas that could be affected by landslide debris. Purok VI (Kapatungan)# Active landslide >>>D Creep Purok VI Malipayon (Pag-asa) Inactive landslide Tension crack # Purok IA (Poblacion)# Landslide area with mitigating measure HHHGully Purok VII Malipayon (Pag-asa) # ///Rock fall/Rock slide prone area Riverbank erosion Old landslide deposits 8°4'0"N 8°4'0"N Purok XVA Recent landslide deposits (Poblacion)# 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 Purok X Kaangayan II Purok XVB and area along river banks; also prone to flashfloods. (Aurora)# (Poblacion)# High flood susceptibility 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 of several hours; include landforms of topographic lows Purok# XIV Kaangayan II such as active river channels, abandoned river channels (Aurora)# and area along river banks; also prone to flashfloods. 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 Purok X Kaangayan I (Aurora)# areas are subject to widespread inundation during prolonged and extensive heavy rainfall or extreme weather condition. Fluvial terraces, alluvial fans, and infilled valleys are areas moderately 8°3'0"N subjected to flooding. 8°3'0"N 126°0'0"E 126°1'0"E 126°2'0"E 126°3'0"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.