Tonga-Kermadec subduction system

E43916
convergent plate boundary subduction zone tectonic system

The Tonga-Kermadec subduction system is a major convergent plate boundary in the southwest Pacific where the Pacific Plate descends beneath the Indo-Australian Plate, producing one of the world’s deepest ocean trenches and most active seismic and volcanic regions.

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All labels observed (10)

Label Occurrences
Kermadec subduction zone 2
Tonga-Kermadec subduction system canonical 2
Benioff zones 1

Statements (49)

Predicate Object
instanceOf convergent plate boundary ⓘ
subduction zone ⓘ
tectonic system ⓘ
associatedWith Tonga–Kermadec Arc ⓘ
surface form: Kermadec Ridge

Tonga Ridge ⓘ
Tonga–Kermadec Arc ⓘ
surface form: Tonga-Kermadec volcanic arc

Havre Trough ⓘ
surface form: back-arc Havre Trough

back-arc Lau Basin ⓘ
fluid release from subducting slab ⓘ
mantle wedge melting ⓘ
tsunami generation ⓘ
boundedBy Lau Basin to the west ⓘ
Pacific Plate to the east ⓘ
characterizedBy oceanic-oceanic subduction ⓘ
contains Horizon Deep ⓘ
extendsFrom northern Tonga region ⓘ
extendsTo Kermadec region north of New Zealand ⓘ
hasFeature active volcanism ⓘ
back-arc spreading centers ⓘ
deep ocean trench ⓘ
frequent large earthquakes ⓘ
high plate convergence rate ⓘ
high seismicity ⓘ
slab rollback ⓘ
steep subduction angle ⓘ
submarine volcanoes ⓘ
volcanic island arc ⓘ
hasMaximumDepth over 10000 m ⓘ
hasOverridingPlate Indo-Australian Plate ⓘ
hasPart Kermadec Trench ⓘ
Tonga Trench ⓘ
hasSubductingPlate Pacific Plate ⓘ
HorizonDeepDepthApprox about 10800 m ⓘ
locatedIn southwest Pacific Ocean ⓘ
near Kermadec Islands ⓘ
Tonga ⓘ
surface form: Tonga Islands
oneOfWorlds deepest ocean trenches ⓘ
most seismically active regions ⓘ
most volcanically active regions ⓘ
overlies Pacific Plate ⓘ
partOf Pacific Ring of Fire ⓘ
produces deep-focus earthquakes ⓘ
intermediate-depth earthquakes ⓘ
megathrust earthquakes ⓘ
studiedIn marine geology ⓘ
plate tectonics ⓘ
seismology ⓘ
volcanology ⓘ
underlies Indo-Australian Plate ⓘ

Referenced by (12)

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

Tonga Trench → associatedWith → Tonga-Kermadec subduction system ⓘ
Kermadec Trench → partOf → Tonga-Kermadec subduction system ⓘ
this entity surface form: Kermadec-Tonga subduction zone
Kermadec Trench → geologicalProvince → Tonga-Kermadec subduction system ⓘ
this entity surface form: Kermadec-Tonga subduction system
Havre Trough → partOf → Tonga-Kermadec subduction system ⓘ
this entity surface form: Kermadec-Havre-Tonga subduction system
South Fiji Ridge → relatedTo → Tonga-Kermadec subduction system ⓘ
Tonga Ridge → associatedWith → Tonga-Kermadec subduction system ⓘ
this entity surface form: Tonga–Kermadec subduction system
Colville Ridge → associatedWith → Tonga-Kermadec subduction system ⓘ
this entity surface form: Kermadec subduction zone
back-arc Lau Basin → formedBehind → Tonga-Kermadec subduction system ⓘ
subject surface form: Lau Basin
this entity surface form: Tonga-Kermadec subduction zone
back-arc Lau Basin → isPartOf → Tonga-Kermadec subduction system ⓘ
subject surface form: Lau Basin
this entity surface form: Tonga-Lau back-arc system
Hugo Benioff → knownFor → Tonga-Kermadec subduction system ⓘ
this entity surface form: Benioff zones
East Pacific tectonic system → contains → Tonga-Kermadec subduction system ⓘ
this entity surface form: Kermadec–Tonga subduction system
Hikurangi subduction margin → continuationOf → Tonga-Kermadec subduction system ⓘ
this entity surface form: Kermadec subduction zone