Tamil Nadu (TNBSE) chapters aren't published yet — showing the NCERT equivalent

Tamil Nadu uses Samacheer Kalvi textbooks, not NCERT. Use this for the concepts; check chapter names and order against your own textbook.

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By the end of this chapter you'll be able to…

  • 1Explain what causes earthquakes and how they are measured
  • 2Recall key facts about the 2001 Gujarat earthquake
  • 3Describe how to stay safe during an earthquake
  • 4List items for an emergency kit
  • 5Explain why preparedness and community support matter
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Why this chapter matters
'When the Earth Shook' explains what earthquakes are, recalls the devastating 2001 Gujarat earthquake, and teaches life-saving preparedness. It builds awareness of natural disasters and the 'Drop, Cover, and Hold On' response that can protect children and families.

Before you start — revise these

A 5-minute refresher here will save you 30 minutes of confusion below.

When the Earth Shook — Class 5 EVS (CBSE)

Based on the NCERT Looking Around Grade 5 textbook. Learn about earthquakes and how to prepare for them, then solve the practice set.


1. Why this chapter matters

Earthquakes are one of the most destructive natural disasters. They strike without warning. This chapter discusses the devastating Gujarat earthquake of 2001, the experience of survivors, and the importance of disaster preparedness. Students learn what causes earthquakes, how to stay safe during one, and how communities can support each other in the aftermath.

2. What is an earthquake?

An earthquake is a sudden shaking of the ground caused by movements deep inside the Earth.

What causes earthquakes?

The Earth's surface is made of huge pieces called tectonic plates. These plates are always moving very slowly. Sometimes they get stuck, and pressure builds up. When the pressure is suddenly released, the ground shakes — this is an earthquake.

Measuring earthquakes

Earthquakes are measured on the Richter scale.

MagnitudeEffect
Less than 2.0Not felt by people
2.0 - 3.0Felt lightly by some
4.0 - 5.0Can cause minor damage
6.0 - 7.0Can cause major damage
7.0 - 8.0Can cause widespread destruction
Above 8.0Catastrophic

3. The Gujarat earthquake (2001)

On 26 January 2001, a massive earthquake struck the Kutch region of Gujarat. It measured 7.7 on the Richter scale.

What happened

  • The earthquake struck on India's Republic Day (26 January).
  • Over 20,000 people died.
  • Hundreds of thousands of homes were destroyed.
  • Many towns (like Bhuj, Anjar, Bachau) were badly damaged.
  • The earthquake was felt across India and even in neighbouring countries.

After the earthquake

  • Rescue teams came from all over India and the world.
  • Temporary shelters were set up for people who lost their homes.
  • Medical teams treated the injured.
  • Reconstruction took years.
  • The government and NGOs worked together on relief and rehabilitation.

4. How communities responded

In the face of disaster, people came together:

  • Neighbours helped rescue trapped people.
  • People shared food, water, and shelter.
  • Students collected money and supplies for survivors.
  • Many organisations sent volunteers to help rebuild homes and schools.
  • New building codes were created to make buildings safer.

5. Earthquake preparedness

Before an earthquake (be prepared)

  • Know safe places in your home (under a strong table, against an inside wall).
  • Keep an emergency kit ready (water, food, torch, first aid, radio).
  • Practice 'Drop, Cover, and Hold On' drills.
  • Make sure heavy items are securely fastened to walls.

During an earthquake (stay safe)

  • Drop: Drop to your hands and knees.
  • Cover: Cover your head and neck under a sturdy table or desk.
  • Hold On: Hold on to the table leg until the shaking stops.
  • Stay away from windows, shelves, and heavy objects that could fall.
  • If outside, move away from buildings, trees, and power lines.
  • If in a vehicle, stop in an open area and stay inside.

After an earthquake

  • Check yourself and others for injuries.
  • Be prepared for aftershocks (smaller earthquakes that follow).
  • Listen to the radio or mobile alerts for information.
  • Do not use elevators.
  • Check for gas leaks and electrical damage.

6. Activity corner

Activity 1: Practice a 'Drop, Cover, and Hold On' drill with your family at home. Time how long it takes everyone to get under a safe table.

Activity 2: Prepare an emergency kit. List what you would include and why each item is important.

Activity 3: Draw a picture showing what to do during an earthquake. Label the safe and unsafe places.

7. Common mistakes

  • Mistake: Thinking earthquakes only happen in certain countries Fix: Earthquakes can happen anywhere. India is in a seismically active zone, especially the Himalayan region and Gujarat.
  • Mistake: Running outside during an earthquake is always safer Fix: Running outside can be dangerous because of falling debris and glass. 'Drop, Cover, Hold On' is safer indoors.
  • Mistake: Believing animals can always predict earthquakes Fix: Some animals may sense small vibrations before humans, but there is no reliable way to predict earthquakes.

8. Key facts

  • Earthquakes are caused by movement of tectonic plates deep in the Earth.
  • Measured on the Richter scale.
  • Gujarat earthquake (2001): 7.7 magnitude, over 20,000 deaths.
  • 'Drop, Cover, and Hold On' is the safest response.
  • India is in a seismically active zone.
  • Preparedness saves lives.
  • Community support is essential after a disaster.

9. Self-test

  1. What causes an earthquake?
  2. When did the Gujarat earthquake occur?
  3. What should you do during an earthquake?
  4. Name one item you would keep in an emergency kit.
  5. Why is it important to practice earthquake drills?

10. Answer key

  1. What causes an earthquake? Answer: The sudden release of pressure when tectonic plates under the Earth's surface move and get unstuck.

  2. When did the Gujarat earthquake occur? Answer: 26 January 2001 (Republic Day of India), magnitude 7.7.

  3. What should you do during an earthquake? Answer: Drop, Cover, and Hold On. Get under a sturdy table, cover your head and neck, and hold on until the shaking stops.

  4. Name one item you would keep in an emergency kit. Answer: Torch (flashlight), water, first aid kit, radio, food (any one).

  5. Why is it important to practice earthquake drills? Answer: So that everyone knows exactly what to do when an earthquake strikes, which saves lives.

11. Quick revision

  • Earthquakes: sudden ground shaking from tectonic plate movement.
  • Gujarat 2001: 7.7 magnitude, 20,000+ deaths.
  • Safe response: Drop, Cover, Hold On.
  • India is seismically active — be prepared.
  • Emergency kit: water, food, torch, first aid, radio.
  • Community support helps recovery after a disaster.
  • Preparation and practice save lives during earthquakes.

Key formulas & results

Everything you need to memorise, in one card. Screenshot this for revision.

Cause of earthquakes
Moving tectonic plates release built-up pressure
Measured on the Richter scale.
Safe response
Drop, Cover, and Hold On
The safest action during the shaking.
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Common mistakes & fixes

These are the exact errors that cost students marks in board exams. Read them once, save yourself the trouble.

WATCH OUT
✗ Thinking earthquakes only happen in some countries
✓ Earthquakes can occur anywhere; India is seismically active, especially the Himalayas and Gujarat.
WATCH OUT
✗ Believing running outside is always safest
✓ Running out can be dangerous due to falling debris and glass; 'Drop, Cover, Hold On' indoors is safer.
WATCH OUT
✗ Believing animals can reliably predict earthquakes
✓ Some animals sense early vibrations, but there is no reliable way to predict earthquakes.

NCERT exercises

Every NCERT exercise from this chapter — what it covers and how many questions to expect.

Think and Discuss
Think and Discuss
Questions on earthquakes and safety
4
Questions
Find Out
Find Out
Preparing for disasters
4
Questions

Practice problems

Work through this chapter's problems as a readiness check — reveal each solution, mark yourself honestly, and get your gap report at the end.

Readiness check

Are you exam-ready for When the Earth Shook?

4 problems from this chapter. Try each one, reveal the worked solution, mark yourself honestly — get your gap report at the end.

4 questions~3 min worth ~5 marks in Tamil Nadu (TNBSE) exams

5-minute revision

The whole chapter, distilled. Read this the night before the exam.

  • •Earthquakes are caused by the movement of tectonic plates deep in the Earth.
  • •They are measured on the Richter scale.
  • •The 2001 Gujarat earthquake (7.7) killed over 20,000 people.
  • •Safe response: Drop, Cover, and Hold On.
  • •Stay away from windows and heavy objects; move to open ground if outside.
  • •Keep an emergency kit: water, food, torch, first aid, radio.
  • •Preparedness and community support save lives.

Tamil Nadu (TNBSE) marks blueprint

Where the marks come from in this chapter — so you can plan your prep.

Typical chapter weightage: 3-5 marks, depending on the school paper

Question typeMarks eachTypical countWhat it tests
Very Short / MCQ1-21-2Causes and the Gujarat earthquake
Short Answer2-31Safety steps and preparedness
Prep strategy
  • Understand tectonic plate movement
  • Remember the 2001 Gujarat earthquake facts
  • Memorise 'Drop, Cover, and Hold On'
  • List emergency-kit items

Where this shows up in the real world

This chapter isn't just an exam topic — it lives in the world around you.

Personal safety

Knowing how to respond protects you and your family during earthquakes.

Disaster management

Preparedness and safe buildings reduce loss of life in quake-prone areas.

Community resilience

Helping one another speeds recovery after a disaster.

Exam strategy

Battle-tested tips from teachers and toppers for this chapter.

1
Explain earthquakes using tectonic plates
2
Quote the Gujarat 2001 facts
3
Always give the 'Drop, Cover, Hold On' steps
4
List emergency-kit items

Going beyond the textbook

For olympiad aspirants and curious learners — topics that build on this chapter.

STRETCH
Practise a 'Drop, Cover, Hold On' drill and time it.
STRETCH
Find out which regions of India are most earthquake-prone and why.

Where else this chapter is tested

CBSE board isn't the only one — other exams test this chapter too.

CBSE Class 5 School ExamHigh
EVS / disaster-awareness OlympiadMedium

Questions students ask

The real ones — pulled from the Q&A community and tutor sessions.

When the ground shakes, the greatest danger indoors comes from falling objects, broken glass, and collapsing parts of the building, especially near exits and windows. Trying to run outside while the floor is moving makes you likely to fall or be hit by debris. Instead, dropping down, taking cover under a sturdy table to protect your head and neck, and holding on until the shaking stops keeps you protected in a relatively safe spot until it is safe to move.

Earthquakes strike suddenly and can cut off electricity, water, and roads, sometimes for days. An emergency kit with water, non-perishable food, a torch, a first-aid box, and a radio means a family can manage the first crucial hours and days while help arrives. Having everything ready in advance saves time and panic during the emergency, when shops may be closed and it is unsafe to go searching for supplies.
Verified by the tuition.in editorial team
Last reviewed on 30 May 2026. Written and reviewed by subject-matter experts — read about our process.
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