What are the patterns in the distribution of zones of earthquakes and volcanism?

The regularity of the location of the zones of earthquakes and volcanism is caused by the location of these territories on the faults of the lithospheric plates.
These processes often occur at the moment of active movement of lithospheric plates, which, in turn, causes massive tremors of the entire earth’s surface.
Volcanic areas are also located at the junction of borders.
When one plate is on another, the magma channels rise high up.
After the next shock occurs, the pressure and temperature rise, and magma comes to the surface.