Which option is a planning tool used in tectonic hazard preparedness?

• A. Hazard maps
• B. Steep roofs
• C. Earth embankments
• D. Ground-swelling detection

Answer: (A)

Hazard maps provide a planning tool by translating hazard data into a spatial picture that guides decisions before an event. They show where tectonic hazards are likely to occur and how severe they could be, which helps determine safe locations for new development, where to reinforce buildings, and how to plan evacuation routes and resource allocation. By layering information on fault lines, expected ground shaking, landslide or tsunami risk, and population or infrastructure, planners can identify high-risk areas and implement targeted preparedness measures.

The other options are not planning tools in this context. Steep roofs are a structural design feature to reduce danger during events, not a planning tool you use to map or plan ahead. Earth embankments are physical protections, not planning aids. Ground-swelling detection relates to monitoring and early warning during or after events, rather than pre-event preparedness planning.