| Date | November 2019 | Marks available | 4 | Reference code | 19N.1.bp.7 |
| Level | SL and HL | Paper | 1 | Time zone | |
| Command term | Explain | Question number | 7 | Adapted from | N/A |
Question
The map shows the movements of internally displaced persons (IDPs) out of Port-au-Prince, Haiti, following the earthquake of January 2010.
[Source: adapted from Internal Displacement Monitoring Centre (IDMC). www.internal-displacement.org]
Estimate the number of internally displaced persons (IDPs) moving to Artibonite.
Estimate the furthest distance, in km, from Port-au-Prince at which very strong earthquake intensity was experienced.
Outline how the distance from the epicentre of an earthquake can determine the severity of two associated secondary hazards.
Explain two reasons why internally displaced persons may have to wait a long time to return home after a major earthquake event such as this.
Markscheme
125 000 persons (accept 100 000–150 000).
80 (allow 70–90).
In each case, award [1] for recognizing a valid secondary hazard, and [1] for further development showing applied knowledge of geophysical hazards.
For example: The further from the epicentre, the fewer landslides [1]. This is because shaking is less severe, which can cause instability of slopes [1].
Do not double credit less severe / more severe shaking
Other possibilities include:
- tsunamis
- liquefaction
- fires
- collapse of infrastructure
- disease.
In each case, award [1] for a valid reason and [1] for further development showing applied knowledge of geophysical hazards.
For example: Large scale of devastation [1] means an enormous cost/undertaking to reconstruct housing/infrastructure [1].
Other possibilities include:
- aftershocks
- infrastructure destroyed
- weak government
- lack of funding
- pollution (atmospheric or terrestrial)
- lack of insurance
- wealth/poverty levels
- lack of resources/materials/workers/aid for reconstruction
- fear of returning.
