along fault lines
Australia
earthquakes are most likely to occur on the rim of tectonic plates
alpine system
If you mean "where" earthquakes and volcanoes are most likely to occur it is in what's called the "ring of fire" which is the coastal ring around the Pacific Ocean.
The answer is Earthquakes
On plate boundaries .
The answer is Earthquakes
Tectonic Plate boundaries.
The answer is that earthquakes and volcanoes are most frequent along Tectonic plate boundaries, these are the natural pieces that the continents and oceans are on.
Most earthquakes do occur on fault lines.
They will happen around the edges of tectonic plates.
yo momma hahahahahahah jk it's in faults and transform boundries.