28.7.1. Seismometers and Accelerographs

Try these first

1. 1.

   What does a seismometer measure?

   Hint

   Think about what happens during shaking.

2. 2.

   What do accelerographs record?

   Hint

   Consider how the ground speed changes during an earthquake.

3. 3.

   What does a seismometer measure?

   • Ground acceleration
   • Ground displacement
   • Seismic wave frequency

   Hint

   Think about what happens when the ground shakes.

4. 4.

   True or False: Accelerographs are used to measure ground displacement.

   • True
   • False

   Hint

   Consider the different roles of these instruments.

5. 5.

   Design a hypothetical study using seismometer and accelerograph data to assess earthquake risks in a newly developed urban area.

   Hint

   Think about the type of locations where installations might be beneficial.

6. 6.

   Discuss how inaccurate readings from accelerographs can impact building codes and retrofitting strategies.

   Hint

   Consider the implications of following incorrect data for safety.