Earthquake

The video explains how energy within the Earth's crust generates seismic waves, leading to earthquakes, particularly at tectonic plate boundaries. It describes how tension builds up and is released, causing rocks to move. The power of earthquakes is measured using the Richter scale, with values indicating the severity of the quake.

What is generated by the energy within the Earth's crust?

• Tsunamis

• Seismic waves

• Hurricanes

• Volcanic eruptions

Where do earthquakes most commonly occur?

• In the middle of tectonic plates

• In the ocean

• In the desert

• At the boundaries of tectonic plates

What happens when tension is released between tectonic plates?

• A volcanic eruption occurs

• Rocks move over one another

• A tsunami is generated

• The plates stop moving

On what scale is the power of earthquakes measured?

• Beaufort scale

• Fahrenheit scale

• Celsius scale

• Richter scale

What is considered a major earthquake on the Richter scale?

• 5 to 6

• 3 or lower

• 7 to 8

• 9 or higher