No. A volcano is not a plate boundary. Most volcanoes on land are associated with convergent boundaries, but many are associated with divergent boundaries and others with hot spots.
On a convergent boundary.
The Falcon Volcano on the Tonga Islands are in the Indo-Australian Plate- a convergent boundary.
convergent
convergent plate boundary
They can be associated with both, but are most often found near convergent boundaries.
convergent
Composite cone
Paricutin is located on a convergent boundary. The volcano formed as a result of the subduction of the Cocos Plate beneath the North American Plate in Mexico.
The Turrialba Volcano is located on a convergent plate boundary where the Cocos Plate is subducting beneath the Caribbean Plate. This subduction process is responsible for the volcanic activity in the region.
rezy
The Falcon Volcano on the Tonga Islands are in the Indo-Australian Plate- a convergent boundary.
oceanic crest and volcano.