Chapter 14 of 17
Revision Notes
Disaster Management — Revision Notes
Gujarat Board · Class 11 · Geography
Disaster Management revision notes for Gujarat Board Class 11 Geography: 4 topics in quick points. Part of the Gujarat Board Class 11 Geography syllabus.
41 questions23 flashcards5 concepts
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Key Topics to Revise
1
Introduction to Natural Hazards and Disasters
- Natural hazards are phenomena that cause damage to human life and economy
- In earlier times, natural hazards were believed to result from human interference in natural processes
- Some hazards occur abruptly (earthquakes, volcanoes) while others develop gradually (droughts)
2
Classification of Hazards
- Hazards are classified into 6 main categories based on their origin and nature
- Geophysical hazards: Earthquake, landslide, volcanic eruption
- Meteorological hazards: Cyclone, storms
3
Earthquake
- India is divided into 5 seismic zones (I to V) based on earthquake probability and intensity
- Zone V: Highest risk - Himalayas, North Eastern States, Kachchh region of Gujarat
- Zone IV: High risk - Delhi, Mumbai and surrounding areas, parts of peninsular plateau
4
Major Indian Earthquakes (Last Decade Data)
- 20th October 1991: Uttarkashi (Uttarakhand) - 6.6 Richter scale
- 30th September 1993: Latur (Maharashtra) - 6.3 Richter scale
- 22nd May 1997: Jabalpur (Madhya Pradesh) - 6.3 Richter scale
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Full NotesKey Concepts
Natural hazards are natural phenomena likeHazards are classified into six categoriesIndia is divided into five seismicCyclones are meteorological hazards that originateFloods occur when river flow increases
Frequently Asked Questions
What are the important topics in Disaster Management for Gujarat Board Class 11 Geography?
Key topics in Disaster Management include Introduction to Natural Hazards and Disasters, Classification of Hazards, Earthquake, Major Indian Earthquakes (Last Decade Data). Study these first, then practise questions on each for Class 11 exams.
How should I revise Disaster Management for Class 11 exams?
Learn the core ideas first, then work through the 41 practice questions on Disaster Management. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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