Multiple choice

Richter scale is used for measuring the

  1. velocity of wind

  2. depth of an ocean

  3. velocity of earth's rotation

  4. intensity of an earthquake

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

The Richter scale, developed by Charles Richter in 1935, measures the magnitude (intensity) of earthquakes based on seismic wave amplitude recorded by seismographs. It's logarithmic - each whole number increase represents 10 times greater amplitude and about 31.6 times more energy release.