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Earthquakes are common along convergent boundaries. A region of high earthquake activity, the Wadati–Benioff zone, generally dips 45° and marks the subducting plate. Earthquakes will occur to a depth of 670 km (416 mi) along the Wadati-Benioff margin. [citation needed] Both compressional and extensional forces act along convergent boundaries.
Three types of plate boundary Convergent boundary Divergent boundary Transform boundary. Tectonic plate interactions are classified into three basic types: [1] Convergent boundaries are areas where plates move toward each other and collide. These are also known as compressional or destructive boundaries.
Subduction is a geological process in which the oceanic lithosphere and some continental lithosphere is recycled into the Earth's mantle at the convergent boundaries between tectonic plates. Where one tectonic plate converges with a second plate, the heavier plate dives beneath the other and sinks into the mantle.
Depending on how the plates interact with each other, there are three types of boundaries. Movements of tectonic plates and the formation of oceanic ridges and trenches. Convergent boundary: the plates collide, and eventually the denser one slides underneath the lighter one, a process known as subduction.
Divergent boundaries (constructive boundaries or extensional boundaries). These are where two plates slide apart from each other. At zones of ocean-to-ocean rifting, divergent boundaries form by seafloor spreading, allowing for the formation of new ocean basin, e.g. the Mid-Atlantic Ridge and East Pacific Rise. As the ocean plate splits, the ...
Paleomap – Map of continents and mountain ranges in the past based on plate reconstructions; Seamount – Mountain rising from the ocean seafloor that does not reach to the water's surface; Slab (geology) – The portion of a tectonic plate that is being subducted; Slab gap hypothesis – Theory in plate tectonics
[18] [19] The bottom of the trench marks the boundary between the subducting and overriding plates, known as the basal plate boundary shear [20] or the subduction décollement. [2] The depth of the trench depends on the starting depth of the oceanic lithosphere as it begins its plunge into the trench, the angle at which the slab plunges, and ...
There are three types of plate boundaries to consider in the context of interplate earthquake events: [4] Transform fault: Where two boundaries slide laterally relative to each other. Divergent boundary: Where two boundaries move apart. Convergent boundary: Where one plate moves towards, and potentially subducts beneath, another plate.