Hazard Adaptation Flashcards
What is the purpose of hazard mapping in relation to geophysical hazards?
To inform government planning and avoid large-scale disasters.
Hazard mapping helps identify high-risk areas and guides zoning and relocation efforts.
What significant event did the hazard risk map for Southern Leyte help prevent?
A repeat of the Guinsaugnon landslide disaster.
The map informed the relocation of Guinsaugnon and six other local villages deemed too dangerous.
What does the hazard risk map for landslides indicate?
Potential rock slide zones and the extent of debris flow or rock avalanche.
The darkest red areas on the map indicate the highest risk.
How has hazard mapping informed urban zoning in Mocoa, Columbia?
By encouraging the relocation of populations at risk from landslides.
Mocoa’s policy is influenced by detailed hazard mapping of landslide risk.
What scale is used in the hazard maps for New Zealand and L’Aquila, Italy?
Modified Mercalli Scale.
This scale maps the impacts of seismic events across an area.
What risk does the Christchurch liquefaction potential map indicate?
Areas most at risk from liquefaction during an earthquake.
The darker shaded sections indicate higher risk due to underlying soil conditions.
What is the main purpose of urban zoning?
To ensure people and infrastructure are located in the safest areas of the city.
It avoids placing high-density neighborhoods and vital infrastructure in vulnerable locations.
What percentage probability does Istanbul have of being hit by a 7 magnitude earthquake in the next thirty years?
30-70% probability.
This risk has led to the implementation of stricter building codes.
What significant law was passed in Istanbul in May 2012 regarding buildings?
Urban Transformation Law requiring demolition of non-compliant buildings.
Nearly 6.5 million buildings in Turkey could be affected by this law.
What is the Great Californian Shakeout?
An annual earthquake drill promoting preparedness.
In 2019, over 6.5 million participants took part in this event.
How does earthquake insurance contribute to resilience?
By providing financial protection against earthquake damage.
Organizations like the California Earthquake Authority offer flexible insurance products.
What are the benefits of retrofitting homes for seismic security?
Reduces insurance costs and likelihood of earthquake damage.
Retrofitting can help older homes meet current seismic design standards.
