There are two areas where volcanic mountains often form. They are subduction zones and hot spots.
they are major zones of volcanic and earthquake activity.
It is difficult to answer exact number of volcanoes but these are distributed into four volcanic zones Northern, Southern, Central and Austral volcanic zones.
There are several volcanic zones located in the Philippines. The activity of these zones are monitored by PHILVOLCS. Some zones which have been known for activity include the Mayon volcano located in Luzon and Taal which is also located within Luzon.
The three zones of increased earthquakes and volcanic eruptions are the ring of fire, the Mediterranean Sea Zone, and the Mid-Atlantic Ocean Ridge
Most movement occurs along narrow zones between plates where the ... Plate boundary zones -- broad belts in which boundaries are not well ... Africa, is but one segment of the global mid-ocean ridge system that encircles the Earth. ... Some of these rifting events were accompanied by volcanic activity.
Subduction zones lead to the formation of volcanic activity because the water combined with crust and mantle material lowers the rock's melting point temperature, causing the rock to melt and produce magma, which then creates volcanic activity.
trench volcanic activity Island Arc
Because of the plate tectonic
Both subduction zones and spreading centers.
a zone where volcanic activity or earthquake etc. is happening
earthquakes and volcanic eruptions