Question: Describe the cause(s) for the ring of fire?
Disambiguated questions and answers: question: What is the general cause for the ring of fire?
What is the cause for the ring of fire on the eastern section?
What is the cause for the ring of fire on the northern section?
What is the cause for the ring of fire on the southern section?
answer: the movement and collisions of lithospheric plates
plate tectonics
the Nazca Plate and the Cocos Plate being subducted beneath the westward-moving South American Plate
Cocos Plate is being subducted beneath the Caribbean Plate
the Pacific Plate and the small Juan de Fuca Plate are being subducted beneath the North American Plate
Pacific Plate is being subducted along the Kamchatka Peninsula arcs
Pacific Plate is being subducted beneath the Aleutian Islands arc
smaller tectonic plates in collision with the Pacific Plate from the Mariana Islands, the Philippines, Bougainville, Tonga, and New Zealand
Natural Questions answer: plate tectonics (from the Wikipedia article "Ring of Fire")