Why are most of the earthquakes and volcanoes located at the border of the tectonic plates?
The plates rub together
What do you notice about the location of earthquakes and the plates that make up the earth's surface?
Volcanoes occur along tectonic borders. More specifically, a border between an oceanic plate, and a land plate. Oceanic plates are more dense than land plates, which causes them to sink beneath land plates. Along these borders, magma can seep up to above the plates, cool, and form a volcano. This is what caused the "Ring of Fire," a ring of volcanoes surrounding the Pacific Ocean.