subduction zones


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Related to subduction zones: Tectonic plates

subduction zones

[səb′dək·shən ‚zōnz]
(geology)
Regions where portions of the earth's tectonic plates are diving beneath other plates, into the earth's interior. They are defined by deep oceanic trenches, lines of volcanoes parallel to the trenches, and zones of large earthquakes that extend from the trenches landward.
References in periodicals archive ?
Most of the coastal areas along the subduction zone appear to have suddenly subsided or uplifted during the late 1600s.
Stretching from northern Californiainto British Columbia, this subduction zone is the junction between two huge plates of the earth's crust.
Subduction zone earthquakes can produce large tsunamis because there are large and rapid displacements of the seafloor during the earthquakes.
There are two subduction zones in the United States.
That means researchers can set up monitoring stations on land, much closer to the place where slow slip is happening--about 15 kilometers below the shoreline--than they can at other subduction zones.
Japan - The South Japan Subduction Zone (Nankai Trough) has a complex pattern of three segments.
This year's program focused on subduction zones, where Earth's tectonic plates bend back down toward the planet's interior, usually creating volcanoes in the process.
The relative motions between adjacent plates give rise to earthquakes along the plate boundaries that include spreading oceanic ridges, converging subduction zones, collisional continental plate boundaries, and transform faults along which they shear past each other (Bird, 2003; Turcotte and Schubert, 2002; Cediel et al.
The effect of subduction zones on crustal evolution is preserved in the tectonic evolution of the plate above the subduction zone (upperplate) where there is a relatively predictable zonation (Fig.
That's because the area that borders the ocean, dubbed the "Ring of Fire," contains most of Earth's subduction zones.
Subduction zones, where the plates move vertically, pose the most severe threat for tsunamis.