20.12.2. Energy Released by Earthquakes

Try these first

1. 1.

   What does the Richter scale measure?

   Hint

   Think about how we quantify energy in earthquakes.

2. 2.

   Is a magnitude 5.0 earthquake more or less powerful than a magnitude 6.0?

   Hint

   Consider the logarithmic nature of the Richter scale.

3. 3.

   What is the formula for calculating energy released by an earthquake?

   Hint

   Look for the variables in the formula.

4. 4.

   True or False: Each increase of 1.0 in magnitude results in less energy release.

   • True
   • False

   Hint

   Recall how the Richter scale is logarithmic.

5. 5.

   If an earthquake's magnitude is measured at 8.5, calculate the energy released in joules. Discuss potential impacts on infrastructure.

   Hint

   Focus first on calculating the energy, then think about significant buildings affected.

6. 6.

   Design a preparedness plan based on energy release estimates for an area prone to 6.0 to 7.0 magnitude earthquakes. What factors would you consider?

   Hint

   Think of how energy implications influence existing infrastructure and community preparedness strategies.