Answer
The four major features of subduction zones are:
a. Trenches: Deep oceanic trenches are long, narrow depressions on the seafloor where one tectonic plate is being subducted beneath another.
b. Volcanic Arcs: Volcanic arcs are chains of volcanoes that form on the overriding plate above the subduction zone. They result from the melting of the descending plate and the upward movement of magma.
c. Earthquake Zones: Subduction zones are associated with intense seismic activity due to the intense stress and friction between the plates.
d. Deep Earthquake Focus: Subduction zones also have deep earthquake foci, which occur at greater depths below the Earth's surface compared to other earthquake zones.
Work Step by Step
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