Understanding Earthquake Safety and Effects

The video tutorial by Niara covers the topic of earthquakes, explaining their sudden occurrence and the energy release from the Earth's crust that causes seismic waves. It introduces technical terms like the Richter scale and seismograph, and discusses the effects of earthquakes, including landslides, avalanches, and tsunamis. The video also provides descriptive words to articulate the impact of earthquakes and offers safety measures such as 'drop, cover, and hold on' to prepare for such natural calamities.

What causes the ground to shake violently during an earthquake?

• Sudden release of energy from the Earth's core

• Sudden release of energy from the Earth's crust

• Gradual release of energy from the Earth's crust

• Gradual release of energy from the Earth's core

What is the Richter scale used for?

• Measuring the depth of an earthquake

• Measuring the temperature of an earthquake

• Measuring the energy released by an earthquake

• Measuring the speed of seismic waves

What follows a main shock in an earthquake sequence?

• Pre-shocks

• Aftershocks

• Tremors

• Seismic waves

Which instrument is used to measure the vibrations of an earthquake?

• Seismograph

• Thermometer

• Richter scale

• Barometer

What is a common effect of earthquakes on infrastructure?

• Increase in temperature

• Improvement in communication services

• Collapse of buildings and bridges

• Formation of new land

Which natural disaster can be triggered by an earthquake near the ocean?

• Tornado

• Hurricane

• Tsunami

• Flood

Which word describes an earthquake that causes a lot of damage?

• Calm

• Gentle

• Disastrous

• Mild

What does the term 'catastrophic' imply when describing an earthquake?

• No impact

• Complete destruction

• Slight inconvenience

• Minor damage

What is the first step in the 'drop, cover, and hold on' technique?

• Run outside

• Drop to the ground

• Cover your head

• Hold onto a sturdy object

Why is it important to cover your head during an earthquake?

• To see better

• To stay warm

• To protect from debris

• To avoid falling