from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A region of raised rock debris which forms between the subduction zone and any associated volcano or volcanic chain.
Sorry, no etymologies found.
The evolving morphologic, structural, and tectonic elements of a subduction zone's submerged forearc points to its past history of having repeatedly discharged giant earthquakes and tsunamis.
It is not a back-arc spreading centre (there is no forearc subduction zone associated with it etc).