The phrase "eruption site" refers to the location where something, such as a volcano or a skin rash, breaks out or erupts. It's the specific place where this event happens. Full definition
Quartz crystals cover surface rims of eruption sites, so by analyzing them, the researchers were able to determine the rim growth rates times of the volcano based on the concentration of titanium in the crystals. (businessinsider.com)
So Baker began to visit other eruption sites at various segments of the Juan de Fuca Ridge and saw megaplumes at all of them. (discovermagazine.com)
By September 2006, the largest eruption site reached a peak, and enough mud gushed on the surface to fill 72 Olympic - sized swimming pools daily. (sciencedaily.com)