Multiple choice

Which instrument is used to measure the magnitude of earthquakes?

  1. Tachometer

  2. Barometer

  3. Seismograph

  4. Anemometer

  5. Sextant

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Seismograph is the instrument used to measure the magnitude of earthquakes by sensing the motions of the outer crust of the earth.