What you will learn

• SEO
• Social media marketing
• Content strategy
• Analytics

Course content (38 lessons)

1. Unit 1: Overview — Unit 1: Introduction to Disaster Management This module provides a comprehensive overview of Disaster Management, covering basic concepts, classifications, and the management…
2. Concept & Definitions of Disaster — Introduction A disaster is a serious disruption of the normal functioning of a community or society, causing widespread human, material, economic, or environmental losses that…
3. Hazard, Vulnerability, and Risk — Introduction In Disaster Management, Hazard, Vulnerability, and Risk are three core concepts. A disaster occurs not only because a hazard exists, but because people and systems…
4. Capacity & Development — Introduction Capacity plays a crucial role in reducing disaster impacts. While hazards and vulnerability increase disaster risk, capacity helps individuals, communities, and…
5. Unit 1: Question Bank — Question Bank: Unit 1 Short Answer Questions (2-5 Marks) 1. Define the terms: Hazard, Vulnerability, and Risk. 2. What is a disaster? How is it different from a hazard? 3. Briefly…
6. Unit 2: Overview — Unit 2: Types, Trends, Causes, Consequences and Control of Disasters This unit covers the classification of disasters into Geological, Hydro-Meteorological, Biological,…
7. Geological Disasters — Geological Disasters These are disasters caused by geological processes originating from within the earth. 1. Earthquakes Definition: Sudden shaking of the ground caused by the…
8. Hydro-Meteorological Disasters — Hydro-Meteorological Disasters These are caused by atmospheric and hydrological processes. 1. Floods Causes: Heavy rainfall, dam failure, rapid snowmelt, poor drainage.…
9. Biological Disasters — Biological Disasters These involve the spread of disease-causing agents affecting humans, animals, or plants. 1. Epidemics Definition: Rapid spread of infectious disease to a…
10. Technological & Manmade — Technological & Manmade Disasters These are caused by human error, negligence, or failure of technology. Technological Disasters 1. Chemical: Gas leaks (e.g., Bhopal Gas Tragedy).…
11. Global Trends & Emerging Risks — Global Disaster Trends 1. Increasing Frequency: The number of weather-related disasters has tripled in the last 30 years. 2. Economic Loss: While fewer people are dying due to…
12. Unit 2: Question Bank — Question Bank: Unit 2 Short Answer Questions (2-5 Marks) 1. Classify disasters and give two examples of Geological disasters. 2. What are Biological Disasters? Name two recent…
13. Unit 3: Overview — Unit 3: Disaster Management Cycle & Framework This unit provides an in-depth understanding of the Disaster Management Cycle , a continuous process essential for reducing the…
14. DM Cycle & Paradigm Shift — Disaster Management Cycle The Disaster Management (DM) Cycle illustrates the ongoing process by which governments, businesses, and civil society plan for and reduce the impact of…
15. Pre-Disaster Phase — Pre-Disaster: Prevention & Preparedness This phase includes all activities done before a disaster strikes to reduce its impact. 1. Risk Assessment and Analysis Identifying…
16. During Disaster Phase — During Disaster: The Response Phase This happens when the disaster actually strikes. The focus is to SAVE LIVES. 1. Evacuation Moving people from dangerous areas to safe shelters.…
17. Post-Disaster Phase — Post-Disaster: Recovery & Reconstruction This phase begins after the emergency is over. The goal is to bring life back to normal and improve it. 1. Damage and Needs Assessment…
18. International Frameworks — International Frameworks for Disaster Risk Reduction (DRR) Disasters know no borders. Therefore, the international community has established frameworks to guide countries in…
19. Unit 3: Question Bank — Question Bank: Unit 3 Short Answer Questions (2-5 Marks) 1. What do you understand by the Disaster Management Cycle? 2. Differentiate between Disaster Prevention and Preparedness.…
20. Unit 4: Overview — Unit 4: Disaster Management in India This unit focuses on the disaster management scenario in India. We will study the country's disaster profile, the legal and institutional…
21. Disaster Profile of India — Disaster Profile of India India is one of the most disaster-prone countries in the world due to its geo-climatic conditions and high population density. Key Facts: 58.6% of land…
22. DM Act 2005 & Institutions — Disaster Management Act, 2005 The DM Act 2005 is the most important legal framework for disaster management in India. It was passed on 23rd December 2005 . Objective: To provide…
23. National Policy & Guidelines — National Policy on Disaster Management (NPDM) 2009 Vision: To build a safe and disaster-resilient India by developing a holistic, proactive, multi-disaster oriented, and…
24. Role of Govt & Agencies — Role of Government 1. Central Government: Role: Supportive. Provides financial, logistical, and technical support. Deployment: Sends Army, Air Force, and NDRF when the state…
25. Unit 4: Question Bank — Question Bank: Unit 4 Short Answer Questions (2-5 Marks) 1. Briefly outline the disaster profile of India. 2. What is the primary objective of the Disaster Management Act, 2005?…
26. Unit 5: Overview — Unit 5: Science & Technology for Disaster Management This unit explores the critical role of Science and Technology (S&T) in disaster management. From satellite imagery to early…
27. Geo-informatics (GIS, RS, GPS) — Geo-informatics in Disaster Management Geo-informatics is the science of gathering, analyzing, and using geographic data. It is the "Eye in the Sky" for disaster managers. 1.…
28. Communication & EWS — Disaster Communication System Communication is the lifeline during disasters. When standard networks (Cellular, Landline) fail, alternative systems act as the backbone. Critical…
29. Land Use Planning — Land Use Planning & Regulations Not all land is safe for habitation. Land use planning is the process of deciding what activity should happen where, to minimize disaster risk. Key…
30. Disaster Safe Designs — Disaster Safe Designs and Constructions Engineering plays a vital role in ensuring that hazards do not become disasters. 1. Earthquake Resistant Design: Base Isolation: Separating…
31. Mitigation Strategies — Structural vs. Non-Structural Mitigation Mitigation involves measures to reduce the impact of disasters. It is divided into two types: 1. Structural Mitigation (Engineered…
32. S&T Institutions in India — S&T Institutions for Disaster Management in India Several specialized scientific agencies provide the data and warnings that save lives. 1. IMD (India Meteorological Department):…
33. Unit 5: Question Bank — Question Bank: Unit 5 Short Answer Questions (2-5 Marks) 1. What is Geo-informatics? Mention its components. 2. How does Remote Sensing (RS) help in disaster management? 3.…
34. Unit 6: Projects & Assignments — Unit 6: Projects & Assignments This unit moves from theory to practice. It focuses on studying real-world disasters, developing risk management plans, and understanding the…
35. Study of Recent Disasters — Study of Recent Disasters Analyzing past disasters helps us understand what went wrong and how to improve. Methodology for Study: 1. Cause: Natural or Man-made? 2. Impact: Lives…
36. Preparation of DRMP — Preparation of Disaster Risk Management Plan (DRMP) A DRMP is a document that outlines how an area will prevent, prepare for, and respond to disasters. Project Assignment: Create…
37. Role of Engineers in DM — Role of Engineers in Disaster Management Engineers are the "Builders of Resilience". Every engineering discipline contributes to disaster safety. 1. Civil Engineering: Designing…
38. Unit 6: Question Bank — Question Bank: Unit 6 Short Answer Questions (2-5 Marks) 1. What is a Disaster Risk Management Plan (DRMP)? 2. List the key steps involved in preparing a DRMP. 3. Briefly mention…

Concept & Definitions of Disaster

Introduction

A disaster is a serious disruption of the normal functioning of a community or society, causing widespread human, material, economic, or environmental losses that exceed the ability of the affected community to cope using its own resources.

Disasters can occur due to natural causes, human activities, or a combination of both.

Definition of Disaster

General Definition: A disaster is a sudden or progressive event that causes significant damage, destruction, and human suffering.

UN Definition: A disaster is a serious disruption of the functioning of a community or society involving widespread losses and impacts, exceeding the affected community’s capacity to cope.

Key Characteristics of a Disaster

• Sudden or slow onset (earthquake is sudden, drought is slow) • Large-scale impact on people and property • Disruption of normal life • Beyond local coping capacity • Requires external assistance

Disaster vs Hazard vs Risk

Hazard: A potentially dangerous event or phenomenon (e.g., earthquake, flood).

Risk: Probability of loss due to a hazard.

Disaster: Actual occurrence causing serious damage and loss.

Example: • Earthquake (Hazard) • Earthquake in a crowded city (Risk) • Earthquake causing deaths and damage (Disaster)

Types of Disasters

Natural Disasters: • Earthquakes • Floods • Cyclones • Droughts • Landslides • Tsunamis • Volcanic Eruptions

Man-Made Disasters: • Industrial Accidents • Chemical Leaks • Nuclear Disasters • Fire Accidents • Transportation Accidents • War and Terrorism

Impact of Disasters

Human Impact: Loss of life, injuries, psychological trauma.

Economic Impact: Damage to infrastructure, industries, agriculture.

Environmental Impact: Soil erosion, water pollution, deforestation.

Social Impact: Displacement of people, disruption of education and health services.

Disaster Management (Brief Concept)

Disaster Management refers to organized efforts to: Prevent, Prepare, Respond, and Recover. This is commonly known as the Disaster Management Cycle.

Importance of Studying Disaster Management

• Reduces loss of life and property • Enhances preparedness and awareness • Promotes sustainable development • Helps in quick response and recovery

Summary

• A disaster is a major disruption beyond coping capacity. • Disasters can be natural or man-made. • Understanding disaster concepts helps in effective planning and response.

Continue reading: Concept & Definitions of Disaster →

Frequently asked questions

Is the Disaster Management course really free?

Yes. The entire Disaster Management course on Siksha Sarovar is free to read with no account required. You can optionally sign in with Google to save your progress.

Do I get a certificate for Disaster Management?

Yes — finish the lessons and pass the quiz to earn a free, verifiable certificate you can share on LinkedIn or with recruiters.

Can I run code while learning?

Yes. The built-in online compiler runs C, C++, Python, Java, PHP, JavaScript, C# and SQL directly in your browser — no installation needed.