What is the difference between race and ethnicity

Race doesnt exist and ethnicity is where youre from.

Race: how peole look at you within a society ( ex. Hispanic, caucasian)

Ethnicity: where your parents are from; something other than where you are from. (Ex. You were born in U.S.A and your parents were born in Ireland. Making you Irish too)

Geologists use  seismic waves to  locate an earthquake's epicenter..