Richter scale is used to measure what?
Correct answer: Earthquakes
Raymond
an earthquake is a seismic wave.
David
Raymond, I agree, Raymond. There are actually two correct answers to this question.
Maxifire
little b,
Do you know anybody who does?
Joey
seismic waves from the impact of earthquakes ??
Bigkev
David, but they marked me incorrect for saying seismic waves, really irritating.