Hi, hope you’re having a good day.
An earthquake epicenter is the point on the earth's surface above the hypocenter (or focus), point in the crust where a seismic rupture begins.
Idk, you could search more on the internet but if you need help understanding more, you can just comment it and I’ll try to reply ASAP.
Anyways, thanks for reading, have an amazing day, and stay happy. ❤️❤️