Earthquake Measurement and Safety

The video introduces earthquakes, explaining their causes, effects, and how they are measured. It covers the movement of rock masses beneath the Earth's crust, the formation of faults, and the release of energy as shock waves. The video also discusses the potential damage caused by earthquakes, including tsunamis and structural damage. It highlights the Ring of Fire and the San Andreas Fault. The video explains how earthquakes are measured using the Richter and Mercalli scales. Finally, it provides safety tips for staying safe during an earthquake, whether indoors, outdoors, or in a vehicle.

What is the primary cause of the ground shaking during an earthquake?

• Sunlight

• Rainfall

• Wind blowing

• Movement of tectonic plates

What are the large rock masses that make up the Earth's crust called?

• Volcanoes

• Mountains

• Tectonic plates

• Faults

What natural event can trigger an earthquake besides tectonic movement?

• Tornado

• Volcanic eruption

• Hurricane

• Flood

What is a potential consequence of an earthquake occurring near an ocean?

• Hurricane

• Tsunami

• Tornado

• Flood

What is the name of the earthquake belt that circles the Pacific Ocean?

• Tornado Alley

• Ring of Fire

• Volcano Belt

• Hurricane Zone

Which instrument is used to record shock waves produced by an earthquake?

• Thermometer

• Barometer

• Seismograph

• Anemometer

What scale measures the energy released by an earthquake?

• Mercalli scale

• Richter scale

• Fahrenheit scale

• Celsius scale

What should you do if you are inside during an earthquake?

• Run outside immediately

• Stand under a doorway

• Drop, cover, and hold on

• Stand still

Where is the safest place to be during an earthquake if you are outside?

• Under a tree

• Near a building

• Next to a streetlight

• In an open area

What is the Mercalli scale used to measure?

• Rainfall

• Destruction caused by an earthquake

• Wind speed

• Temperature