Nazca–South America plate boundary

E911310

convergent plate boundary plate boundary subduction zone

The Nazca–South America plate boundary is a major convergent margin along the western edge of South America where the oceanic Nazca Plate subducts beneath the continental South American Plate, driving intense Andean volcanism, seismicity, and mountain building.

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Observed surface forms (3)

Surface form	Occurrences
Andean seismic belt	1
Nazca Plate–South American Plate subduction zone	1
Nazca–South America subduction zone	1

Statements (47)

Predicate	Object
instanceOf	convergent plate boundary ⓘ plate boundary ⓘ subduction zone ⓘ
associatedWith	Andean seismicity ⓘ Andean volcanism ⓘ Andes Mountains NERFINISHED ⓘ Peru–Chile Trench NERFINISHED ⓘ megathrust earthquakes ⓘ mountain building ⓘ tsunamis ⓘ
causes	back-arc deformation ⓘ deformation of the South American Plate ⓘ forearc basin development ⓘ uplift of the Andes ⓘ
characterizedBy	arc volcanism ⓘ crustal shortening ⓘ intense seismicity ⓘ subduction of oceanic lithosphere ⓘ thickening of continental crust ⓘ
continentalPlate	South American Plate NERFINISHED ⓘ
drives	Andean orogeny NERFINISHED ⓘ
extendsAlong	coast of Chile ⓘ coast of Colombia ⓘ coast of Ecuador ⓘ coast of Peru ⓘ coast of southern Argentina ⓘ western margin of South America ⓘ
forms	Peru–Chile Trench NERFINISHED ⓘ
hasFeature	accretionary prism ⓘ back-arc region ⓘ forearc region ⓘ volcanic arc ⓘ
hasProcess	crustal accretion ⓘ interplate coupling ⓘ sediment accretion ⓘ slab subduction ⓘ
influences	hazard distribution in Andean region ⓘ topography of western South America ⓘ
knownFor	Andean volcanic belt NERFINISHED ⓘ large subduction earthquakes ⓘ
locatedIn	South America ⓘ
marginType	convergent margin ⓘ
oceanicPlate	Nazca Plate NERFINISHED ⓘ
overridingPlate	South American Plate NERFINISHED ⓘ
partOf	Pacific Ring of Fire ⓘ
subductingPlate	Nazca Plate NERFINISHED ⓘ
tectonicSetting	oceanic–continental subduction ⓘ

Referenced by (4)

Full triples — surface form annotated when it differs from this entity's canonical label.

Liquiñe-Ofqui Fault Zone → tectonicSetting → Nazca–South America plate boundary ⓘ

Chaitén → tectonicSetting → Nazca–South America plate boundary ⓘ

this entity surface form: Nazca Plate–South American Plate subduction zone

Moquegua → locatedInSeismicZone → Nazca–South America plate boundary ⓘ

this entity surface form: Andean seismic belt

San José volcano → locatedOn → Nazca–South America plate boundary ⓘ

this entity surface form: Nazca–South America subduction zone