Maps

INVENTORY OF HAZARD AND RISK MAPS: 2024

Climate Change Exposure Maps

Description: These maps illustrate the exposure of critical assets—such as residential areas, agricultural land, lifeline utilities, and critical facilities—to climate change-related hazards, including floods and landslides.

Significance: By mapping exposure, the municipality can prioritize areas for resilience-building projects and make informed decisions about resource allocation and risk management.

Climate Change Vulnerability Maps

Description: This set of maps assesses the vulnerability of various assets and populations to specific climate-related events. Vulnerability factors include susceptibility to extreme rainfall, temperature fluctuations, and other climate-induced hazards.

Significance: Vulnerability maps help identify the most at-risk populations and infrastructures, guiding policies and programs aimed at reducing the impact of climate change on vulnerable sectors.

Flood Susceptibility Maps by Barangay

Description: These maps show areas at risk of flooding based on terrain features, hydrology, land use, and climate data. The maps categorize flood risk levels from low to very high susceptibility.

Significance: Flood susceptibility maps are essential for flood mitigation planning, enabling authorities to implement preventive measures in high-risk zones and enhance early warning systems.

Landslide Susceptibility Maps by Barangay

Description: These maps identify areas that are prone to landslides, using factors such as slope, elevation, land cover, and proximity to streams. Landslide susceptibility levels are categorized from low to very high.

Significance: Landslide susceptibility maps allow for targeted slope stabilization, land use restrictions, and preparedness activities in high-risk areas, helping to protect lives and infrastructure. 

Seismic Hazards Assessment Maps

Description: This category includes maps that simulate potential seismic hazards, such as ground shaking intensity and peak ground acceleration, from an Ms7.5 earthquake on the Lubang Fault.

Significance: Seismic hazard maps help assess earthquake risks, informing the design of earthquake-resistant structures and guiding emergency response planning for earthquake-prone areas.

Susceptibility Factors for Hazard Modeling

Flood Susceptibility Factors

Description: These maps focus on individual factors that contribute to flood susceptibility, including stream density, elevation, slope, distance to stream network, topographic wetness index, land use/land cover, population density, and proximity to road networks.

Significance: Each factor-based map provides a specific layer of information that, when combined, creates a comprehensive flood susceptibility model. This modeling supports targeted flood risk mitigation and land use planning.

Landslide Susceptibility Factors

Description: Similar to flood hazard modeling, this category includes maps of key susceptibility factors for landslides, such as stream density, elevation, slope, distance to stream network, topographic wetness index, land use/land cover, and proximity to road networks.

Significance: By analyzing these factors individually, the landslide susceptibility model enables the identification of zones that require slope stabilization and other preventive measures to mitigate landslide risk.