Why is "Saying higher magnitude always means more deaths" a common mistake in Managing Tectonic Hazards: Responses, Mitigation and Case Studies Part 3?

Why it happens: Intuitive. How to avoid it: Japan 2011 (9.0) had FEWER deaths than Haiti 2010 (7.0). Preparedness and development matter as much as magnitude. Source: 0460 Examiner Reports 2022-2024

Tectonic HazardsCambridge IGCSE Geography (0460)

Managing Tectonic Hazards: Responses, Mitigation and Case Studies Part 3

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Managing Tectonic Hazards Part 3 — Case Studies Study Notes — Cambridge IGCSE Geography 0460 (2024-2026 syllabus)

Haiti 2010 vs Japan 2011 earthquakes. Mt St Helens 1980 vs Eyjafjallajökull 2010 eruptions. Lessons learned that improved global preparedness.

What you’ll learn

Mapped to the Cambridge IGCSE 0460 syllabus (2024-2026).

3.13.1 — Compare Haiti 2010 and Japan 2011.
3.13.2 — Compare volcanic case studies.
3.13.3 — State lessons learned.

Haiti 2010 vs Japan 2011

Stark contrast — development level decisive.

Haiti 2010. January, magnitude 7.0. Port-au-Prince. ~230,000 dead. ~1.5M displaced. $14B damage. YEARS for recovery.

Japan 2011. March, magnitude 9.0 (~1,000x stronger than Haiti). ~20,000 dead (mainly tsunami). Fukushima nuclear disaster. $235B damage.

Why different outcomes.

Building codes. Japan: world-class. Haiti: weak enforcement.
Warning systems. Japan: extensive. Haiti: minimal.
Emergency response. Japan: rapid, well-organised. Haiti: slow, chaotic.
Recovery capacity. Japan: insurance, government funds. Haiti: depends on slow international aid.

Lesson. Even at much stronger magnitude, Japan suffered fewer deaths. Development level and preparedness are decisive — not magnitude alone.

Cambridge tip. Memorise the figures. This comparison is heavily tested.

Haiti M7.0 → 230,000 deaths.
Japan M9.0 (1000x stronger) → 20,000 deaths.
Difference: preparedness + development.

See the full worked example for managing tectonic hazards: responses, mitigation and case studies part 3 →

Volcanic eruption case studies

Different types, different impacts.

Mt St Helens (USA, 1980). Lateral blast (sideways explosion). Pyroclastic flows. ~57 dead despite advance evacuation. ~500 km² damage. Demonstrated power of explosive composite volcanoes.

Eyjafjallajökull (Iceland, 2010). Massive ASH cloud. ~0 direct deaths. Disrupted European AVIATION for ~6 days. Cost airlines $1.7 billion. Demonstrated modern interconnectedness — ash affects globally.

Key differences.

St Helens: explosive ground-level damage. Eyjafjallajökull: high-altitude ash plume.
St Helens: local lives lost. Eyjafjallajökull: global economic disruption.
St Helens: monitored in advance. Eyjafjallajökull: ash impact unexpected.

Cambridge tip. Different cases illustrate different aspects of volcanic risk.

St Helens: lateral blast, 57 dead.
Eyjafjallajökull: ash, $1.7B aviation.
Different impacts, different lessons.

See the full worked example for managing tectonic hazards: responses, mitigation and case studies part 3 →

Lessons learned

Disasters drive lasting improvements.

Building codes save lives. After Japan 2011, Christchurch, Mexico City — codes tightened further globally.

Early warning systems work. Japan's network expanded; Mexico City and California also improved.

Tsunami warnings. Pacific-wide warning system now operating since 2004 Indian Ocean tsunami.

Volcanic ash protocols. Aviation has clearer rules since Eyjafjallajökull 2010.

Capacity-building aid. Development aid focuses on LONG-TERM resilience, not just emergency response.

International cooperation. UN Office for Disaster Risk Reduction (UNDRR) coordinates global preparedness.

Cambridge tip. Mark scheme rewards FIVE+ specific lessons.

Building codes, warning systems, tsunami alerts.
Aviation ash protocols.
Capacity-building aid + international coordination.
Each lesson came from a specific disaster.

See the full worked example for managing tectonic hazards: responses, mitigation and case studies part 3 →

How it’s examined

Case-study comparisons are popular on Paper 2. Most-tested: Haiti vs Japan (10 marks), volcanic comparison (8 marks), lessons learned (5 marks).

Sources: Cambridge IGCSE Geography 0460 syllabus (2024-2026); 0460 Examiner Reports 2022-2024; 0460/22 May/Jun 2024 question paper and mark scheme. Last reviewed 2026-05-09.

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Step-by-step worked examples — Managing Tectonic Hazards: Responses, Mitigation and Case Studies Part 3

Step-by-step solutions to past-paper-style questions on managing tectonic hazards: responses, mitigation and case studies part 3, written exactly the way a tutor would explain them at the board.

1Compare Haiti 2010 and Japan 2011 (10 marks)
Extended• Adapted from 0460/22 May/Jun 2024• case-study
Question
Compare the impacts of the Haiti 2010 earthquake and Japan 2011 earthquake. Explain why outcomes differed. (10 marks)
Step-by-step solution
1. Step 1
  Haiti facts (2 marks). January 2010, magnitude 7.0. Capital Port-au-Prince. ~230,000 dead. ~1.5 million displaced. $14+ billion damage. Years for recovery.
2. Step 2
  Japan facts (2 marks). March 2011, magnitude 9.0 (~1000x stronger). ~20,000 dead (mainly from tsunami). Fukushima nuclear disaster. $235+ billion damage.
3. Step 3
  Building codes (2 marks). Japan: world-class earthquake-resistant codes. Most buildings survived the shaking. Haiti: weak enforcement; many buildings collapsed even at lower magnitude.
4. Step 4
  Emergency response (2 marks). Japan: rapid, well-organised, military deployment. Haiti: slow, chaotic, depended on slow international aid.
5. Step 5
  Conclusion (2 marks). Despite Japan's stronger quake, far fewer deaths and faster recovery thanks to preparedness. Demonstrates: development level and preparedness matter more than magnitude alone.
Answer
Haiti (lower mag, ~230k dead, slow recovery) vs Japan (higher mag, ~20k dead, fast recovery). Building codes, response capacity, and preparedness are decisive.
Examiner tip
This is Cambridge's all-time favourite comparison question. Memorise figures.
2Compare volcanic eruption case studies (8 marks)
Extended• case-study
Question
Compare Mt St Helens (USA, 1980) and Eyjafjallajökull (Iceland, 2010). State THREE key differences. (8 marks)
Step-by-step solution
1. Step 1
  Mt St Helens (2 marks). 1980. Lateral blast (sideways explosion), pyroclastic flows, ~57 dead, damage to ~500 km², lasted ~9 hours of major activity.
2. Step 2
  Eyjafjallajökull (2 marks). 2010. Glacier-melted lahars, but main impact was ASH CLOUD. ~0 direct deaths but disrupted European aviation for ~6 days, cost airlines $1.7 billion.
3. Step 3
  Difference 1 — type (1 mark). St Helens = explosive, ground-level damage. Eyjafjallajökull = ash plume into atmosphere.
4. Step 4
  Difference 2 — impact (1 mark). St Helens = local lives lost. Eyjafjallajökull = global economic disruption via aviation.
5. Step 5
  Difference 3 — preparedness (2 marks). St Helens evacuated weeks in advance based on monitoring. Eyjafjallajökull's impact was unexpected — until it happened, aviation didn't realise how vulnerable it was.
Answer
St Helens: explosive, local deaths, well-monitored. Eyjafjallajökull: ash, global aviation disruption, taught new lessons about modern interconnection.
3Lessons from case studies (5 marks)
Extended• lessons
Question
State FIVE lessons learned from tectonic disasters that have improved global preparedness. (5 marks)
Step-by-step solution
1. Step 1
  Building codes save lives (1 mark). After Japan 2011, Christchurch, Mexico City — codes were tightened further.
2. Step 2
  Early warning systems work (1 mark). Japan's network has improved; Mexico City and California also expanded.
3. Step 3
  Tsunami warnings (1 mark). Pacific-wide warning system now operating since 2004 Indian Ocean tsunami.
4. Step 4
  Volcanic ash protocols (1 mark). Aviation has clearer rules for ash-affected airspace since Eyjafjallajökull 2010.
5. Step 5
  Capacity-building aid (1 mark). Development aid increasingly focuses on LONG-TERM resilience, not just emergency response.
Answer
Building codes, warning systems, tsunami warnings, aviation protocols, capacity-building. Disasters drive lasting improvements.

Key Definitions and Keywords — Managing Tectonic Hazards: Responses, Mitigation and Case Studies Part 3

Definitions to memorise and the exact keywords mark schemes credit for managing tectonic hazards: responses, mitigation and case studies part 3 answers — sharpened from recent examiner reports for the 2026 0460 sitting.

Haiti earthquake 2010 (case study)
Examiner keyword
Magnitude 7.0, ~230,000 dead. Demonstrates impact of weak building codes and slow response in a developing country.
Japan earthquake 2011 (case study)
Examiner keyword
Magnitude 9.0, ~20,000 dead (mainly tsunami). Demonstrates effective preparedness; also showed limits (Fukushima).
Mt St Helens 1980 (case study)
Examiner keyword
USA, explosive lateral blast. ~57 dead despite advance evacuation. Major lesson: even with monitoring, volcanic blasts can surprise.
Eyjafjallajökull 2010 (case study)
Examiner keyword
Iceland eruption with massive ash cloud. ~0 direct deaths, but $1.7 billion in aviation losses. Showed modern interconnectedness.

Common Mistakes and Misconceptions — Managing Tectonic Hazards: Responses, Mitigation and Case Studies Part 3

The traps other students keep falling into on managing tectonic hazards: responses, mitigation and case studies part 3 questions — taken from recent Cambridge IGCSE 0460 examiner reports and mark schemes — and how to avoid them.

✕Saying higher magnitude always means more deaths
0460 Examiner Reports 2022-2024
Why it happens
Intuitive.
How to avoid it
Japan 2011 (9.0) had FEWER deaths than Haiti 2010 (7.0). Preparedness and development matter as much as magnitude.

Practice questions

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Past paper style quiz

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Managing Tectonic Hazards: Responses, Mitigation and Case Studies Part 3

Short Study Notes in the form of Slides

Detailed Study Notes

What you’ll learn

How it’s examined

1Compare Haiti 2010 and Japan 2011 (10 marks)

2Compare volcanic eruption case studies (8 marks)

3Lessons from case studies (5 marks)

Haiti earthquake 2010 (case study)

Japan earthquake 2011 (case study)

Mt St Helens 1980 (case study)

Eyjafjallajökull 2010 (case study)

✕Saying higher magnitude always means more deaths

Practice questions

Past paper style quiz

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