Volcanoes and Earthquakes

In science class we are learning about volcanoes and earthquakes. Yesterday  we were doing a lab called mapping earthquakes and volcano skill lab and the guiding question for this topic was: Is there a pattern in the locations of earthquakes and volcanoes?  And i answer yes, because whenever you see a volcano a earthquake has to be close to it or the other way around. One thing i would like to know for future reference is what is the first volcano ever formed? but i don't thing there is an exact answer.
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