* Earthquakes are a natural process: They occur due to the movement of tectonic plates, a process that has been ongoing for billions of years.
* No record of early earthquakes: There's no way to know when the first earthquake happened because humans haven't been around long enough to record such events from the very beginning.
* Geological evidence: Scientists can use geological evidence like fault lines and rock formations to understand when earthquakes have happened in the past. However, this evidence only goes back so far.
In short, there's no way to know when the "first" earthquake happened. Earth has been experiencing earthquakes for as long as it has had tectonic plates.
