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Legend (Natural_Hazards__multiple_data_sources)

Coastal Hazard Erosion Plan Area (CHEPA) (1)
Current Erosion Risk Zone (CERZ) Current Erosion Risk Zone (CERZ)
50 year (2060) Erosion risk Zone (50 year ERZ) 50 year (2060) Erosion risk Zone (50 year ERZ)
100 year (2100) Erosion Risk Zone (100 year ERZ) 100 year (2100) Erosion Risk Zone (100 year ERZ)
Coastal Erosion - NZVD16 (2)
2130 - SLR 1.4m - extremely unlikely (RCP H+) 2130 - SLR 1.4m - extremely unlikely (RCP H+)
2130 - SLR 1.05m - extremely unlikely (RCP 8.5) 2130 - SLR 1.05m - extremely unlikely (RCP 8.5)
2130 - SLR 1.05m - likely (RCP 8.5) 2130 - SLR 1.05m - likely (RCP 8.5)
2130 - SLR 0.6m - likely (RCP 4.5) 2130 - SLR 0.6m - likely (RCP 4.5)
2080 - SLR 0.4m - extremely unlikely (RCP 8.5) 2080 - SLR 0.4m - extremely unlikely (RCP 8.5)
2080 - SLR 0.4m - likely (RCP 8.5) 2080 - SLR 0.4m - likely (RCP 8.5)
2080 - SLR 0.2m - likely (RCP 4.5) 2080 - SLR 0.2m - likely (RCP 4.5)
2030 - SLR 0m - extremely unlikely 2030 - SLR 0m - extremely unlikely
2030 - SLR 0m - likely 2030 - SLR 0m - likely
Harbour Inundation – Year 2130, SLR 1.25m (Moturiki) /SLR 1.05m (NZVD), 1%AEP (4)
0.1 to 0.25m 0.1 to 0.25m
0.25 to 0.5m 0.25 to 0.5m
0.5 to 1m 0.5 to 1m
Above 1m Above 1m
Harbour Inundation (City Plan) (5)
RL 2.5m Moturiki or RL 2.3m NZVD16 RL 2.5m Moturiki or RL 2.3m NZVD16
RL 2.6m Moturiki or RL 2.4m NZVD16 RL 2.6m Moturiki or RL 2.4m NZVD16
RL 2.7m Moturiki or RL 2.5m NZVD16 RL 2.7m Moturiki or RL 2.5m NZVD16
RL 2.8m Moturiki or RL 2.6m NZVD16 RL 2.8m Moturiki or RL 2.6m NZVD16
RL 2.9m Moturiki or RL 2.7m NZVD16 RL 2.9m Moturiki or RL 2.7m NZVD16
Flood Hazard Plan Area (City Plan) (6)
Future reassessment area (9)
FloodRisk (63)
Flood plain Flood plain
Flooding depth 100-300mm Flooding depth 100-300mm
Flooding depth over 300mm Flooding depth over 300mm
Minor overland flow Minor overland flow
Major overland flow Major overland flow
Flooding from rainfall (1%AEP, pre-2020, Superseded) (29)
0.1 to 0.25 0.1 to 0.25
0.1 to 0.5 0.1 to 0.5
0.25 to 0.5 0.25 to 0.5
0.5 to 1.00 0.5 to 1.00
Above 1m Above 1m
Contact TCC for Flood information Contact TCC for Flood information
Depth x Velocity 100yr Event (14)
< 0.4 < 0.4
0.4 - 0.6 0.4 - 0.6
0.6 - 0.8 0.6 - 0.8
> 0.8 > 0.8
Land (26)
Land Land
Estuary_Sea (27)
Estuary Estuary
Max Tsunami Flood Depth at 9m (16)
Above 2 m Above 2 m
1 - 2 m 1 - 2 m
0.5 - 1 m 0.5 - 1 m
0.25 - 0.5 m 0.25 - 0.5 m
0.1 - 0.25 m 0.1 - 0.25 m
Slope 4:1 (pre-2023, Superseded) (18)
Slope 3:1 (pre-2023, Superseded) (19)
Slope 2:1 (pre-2023, Superseded) (20)
Slope Hazard Zones 2023 (21)
Failure Zone 2:1 Failure Zone 2:1
Regression Zone 3:1 Regression Zone 3:1
Runout Zone 4:1 Runout Zone 4:1
Slope Hazard Zones Study Area Slope Hazard Zones Study Area
Landslide Susceptibility Earthquake 2023 (22)
Very Low Very Low
Low Low
Moderate Moderate
High High
Landslide Susceptibility Rainfall 2023 (23)
Very Low Very Low
Moderate Moderate
Low Low
High High
Relic Slip (24)
Slope debris lobe showing evidence of recent or current activity Slope debris lobe showing evidence of recent or current activity
Possible slope debris lobe Possible slope debris lobe
Probable slope debris lobe Probable slope debris lobe
Interpreted head scarp with poorly defined morphology Interpreted head scarp with poorly defined morphology
Interpreted head scarp with clearly defined morphology Interpreted head scarp with clearly defined morphology
Liquefaction Vulnerability (1:5000 -1:100,000) (25)
Undetermined Undetermined
Unlikely Unlikely
Possible Possible
High High
Medium Medium
Low Low
Very low Very low