Seismometers

Question 0

Seismometers measure the magnitude ________ of earthquakes and the amount of energy they release. The also measure the ________ and the _________ of the vibrations (horizontal or vertical)

Answer 0

Strength duration direction

Question 1

Seismometers measure the amount of ______ that is ________ in an earthquake.

Answer 1

Energy released

Question 2

Seismic records have been built up over time and allow us to look at the _________ of earthquakes in different areas.

Answer 2

Frequency