question archive A subduction zone is where one tectonic plate is sliding under another one
A subduction zone is where one tectonic plate is sliding under another one
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A subduction zone is where one tectonic plate is sliding under another one. It is not usually a continuous smooth motion, but an intermittent cycle of building pressure of one plate against the other and then a "slip" or movement that relieves the pressure by moving the plates.
This movement is an earthquake. The impact of the pressure/motion waves through the earth actually are felt across the entire planet. But only the areas close to the actual movement feel a distinct - sometimes catastrophic - shock.
Thus, the areas near a subduction zone will feel the effects of this movement as an earthquake more frequently and severely than other parts of the world.
