This map shows the locations of the 15 largest earthquakes in the world since 1900. All but ONE have all occurred at what type of plate boundary?

ocean-continent convergent boundary

Explanation:

As per the question, the map shows the boundaries of the plates oceanic and the continental plates in the center of the map the pacific plate and is plate that is surrounded by the continental plates and as the pacific plate is shrinking it is moving towards the western side and is subducted under the North American plate and all he plate are moving with the respect to this plate and this one boundary is the ocean and the continental one.