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Plate Boundaries (Divergent (or constructive) Margins (Due to a lack of…
Plate Boundaries
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Collision Margins
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Due to the lack of subduction there is no volcanic activity, but earthquakes are violent due to the constant friction that builds up between the two plates trying to override each other.
When two continental plates converge, neither plate can be subducted due to the plates having a similar density.
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The earth's crust is not uniform in thickness and in some thinner areas hotspots are found where convection currents bring plumes of magma towards the surface, resulting in isolated volcanic areas usually far from plate margins.