Izu–Ogasawara Trench

E49726

The Izu–Ogasawara Trench is a deep oceanic trench in the western Pacific formed by the subduction of the Pacific Plate beneath the Philippine Sea Plate, contributing to intense seismic and volcanic activity in the region.

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Observed surface forms (3)


Statements (47)

Predicate Object
instanceOf oceanic trench
subduction zone
associatedHazard megathrust earthquakes
tsunamis
associatedPlate Pacific Plate
Philippine Sea Plate
associatedWith Izu–Bonin Arc
surface form: Izu–Bonin volcanic arc

Izu–Bonin Arc
surface form: Izu–Bonin–Mariana Arc system

Ogasawara Islands
surface form: Ogasawara (Bonin) Islands
causes frequent earthquakes
intense seismic activity
volcanic activity
countryBorder Japan
crustType oceanic crust
depthCategory hadal zone
extendsFrom south of Honshu, Japan
extendsToward the Mariana Trench region
featureType deep-sea trench
formedBy subduction of the Pacific Plate beneath the Philippine Sea Plate
geologicalAge Cenozoic origin
geologicalProcess oceanic–oceanic subduction
influences regional tsunami hazard
seismic hazard in Japan
isSegmentOf Izu–Bonin–Mariana Trench system
linkedTo Izu–Bonin forearc
Philippine Sea Plate
surface form: Philippine Sea Plate interior
locatedIn western Pacific Ocean
locatedOffCoastOf Japan
marginType active continental margin (Japan side)
oceanic island arc margin
maximumDepth over 29000 ft
over 9000 m
monitoredBy Japanese seismic networks
ocean-bottom seismometers
namedAfter Izu Islands
Ogasawara Islands
surface form: Ogasawara (Bonin) Islands
ocean Pacific Ocean
orientation roughly north–south
parallelTo Izu–Bonin Arc
surface form: Izu–Bonin–Mariana island arc
partOf Pacific Ring of Fire
northwest Pacific plate boundary zone
relatedTo Japan Trench
Mariana Trench
researchInterest deep-sea ecosystems
plate subduction dynamics
supports hadal benthic communities
tectonicSetting convergent plate boundary

Referenced by (6)

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

Izu–Bonin Arc adjacentTo Izu–Ogasawara Trench
this entity surface form: Izu–Bonin Trench
western Pacific Ocean contains Izu–Ogasawara Trench
this entity surface form: Izu–Bonin Trench
Japan Trench formsArcSystemWith Izu–Ogasawara Trench
this entity surface form: Izu-Bonin Trench
Philippine Sea hasOceanTrench Izu–Ogasawara Trench
Philippine Sea Plate hasTrench Izu–Ogasawara Trench
this entity surface form: Izu–Bonin Trench
RV Kairei operatesIn Izu–Ogasawara Trench
this entity surface form: Izu–Ogasawara Trench region