DRR2-FOR-STUDENTS

Disaster Readiness and Risk Reduction

Geological Hazards Map

  • A specialized map designed to illustrate various geological features and provide precautionary measures against geological hazards.

Parts of a Geological Map

  • Title: Landslide and Flood Susceptibility Map of Cebu Quadrangle, Cebu Province, Philippines.

  • Coordinate System: Helps in locating specific areas on the map.

  • Legend: Color-coded indicators for different susceptibility levels:

    • Red: Highly susceptible areas (be alert and ready to evacuate).

    • Green: Moderately susceptible areas (be cautious).

    • Yellow: Low susceptibility areas (less likely to experience landslides, but be prepared).

    • Pink and Violet: Indicators for flood susceptibility (varying levels of caution required).

Landslide and Flood Susceptibility Analysis

  • Cebu City: Characterized by low susceptibility to landslides, primarily in flat areas, while mountainous regions show moderate to high susceptibility.

  • Flood Maps: Areas near coastlines are highly susceptible to flooding, necessitating constant vigilance and readiness for evacuation.

Mitigation Strategies for Landslides

  • Understanding Landslide Dynamics: Familiarity with community-specific risk factors is essential for effective land use planning and disaster readiness.

  • Estimate Susceptibility of Slopes: Analyze parameters like slope angle, material, groundwater springs, vegetation, and land use using provided guidelines or resources (e.g., guidebook on rain-induced landslides).

Quick Checklist for Assessing Landslide Potential

  • Questions should include:

    • Historical landslide occurrences in the area.

    • Proximity of structures to steep slopes.

    • Visible signs of ground instability (e.g., cracks, tilting trees).

    • Evidence of water accumulation or poor drainage.

Guidelines for Landslide Preparedness

  1. Education: Be aware of local landslide risks and early warning signs.

  2. Site Selection for Construction: Avoid building on or near high-risk areas (steep slopes, banks of rivers, etc.).

  3. Consult Experts: Engage certified geologists or engineers for site assessments in susceptible areas.

  4. Risk Areas: Pay attention to regions prone to past landslides or operational changes that may alter stability.

Response during a Landslide

  • If indoors: Stay inside and shelter under a stable structure.

  • If outside: Move to higher ground and avoid potential risk areas.

  • If driving: Be cautious of unstable road conditions and avoid collapse-prone structures.

Post-Landslide Actions

  1. Avoid Hazardous Areas: Recurrent landslide risks might exist.

  2. Monitor Flood Risks: Be alert for potential flash floods caused by landslides blocking waterways.

  3. Accountability: Report missing persons and assess damage to facilitate recovery.

  4. Utility Issues: Report any affected utility lines immediately for rapid response and repair.

  5. Structural Assessment: Ensure that buildings are inspected for structural integrity before re-entry.

Area Assessment Guidelines

  • Assess vulnerability to landslides or floods using a checklist to determine the specific risks present in the locality. Key questions involve past incidents, structural integrity near slopes, and visual signs of instability.

  • Community involvement is necessary to strategize effectively against geological hazards. Initiatives could include government action, community preparedness plans, and continuous education on geological risks.

Creative Engagement Activity

  • Model Creation: Design a 3D model of a landslide or sinkhole using recycled materials to visualize risks and impacts. Evaluations focus on relevance, creativity, and presentation quality.

Conclusion

  • Preparedness and understanding of geological risks are crucial for community safety and resilience against disasters. Continuous education, assessment, and strategic planning are key elements in effective disaster risk reduction.