Benioff zone

E878590

geological feature seismotectonic structure subduction-related seismic zone

The Benioff zone is a deep, inclined seismic region within a subducting tectonic plate where many earthquakes originate as the plate descends into the mantle.

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Observed surface forms (2)

Surface form	Occurrences
Benioff seismic zone	1
Wadati–Benioff zone	1

Statements (49)

Predicate	Object
instanceOf	geological feature ⓘ seismotectonic structure ⓘ subduction-related seismic zone ⓘ
alsoKnownAs	Wadati-Benioff zone NERFINISHED ⓘ Wadati–Benioff zone NERFINISHED ⓘ
associatedWith	convergent plate boundary ⓘ oceanic-continental convergence ⓘ oceanic-oceanic convergence ⓘ subduction zone ⓘ
characterizedBy	deep-focus earthquakes ⓘ inclined planar distribution of earthquakes ⓘ intermediate-focus earthquakes ⓘ shallow-focus earthquakes ⓘ
componentOf	global seismicity pattern ⓘ
discoveredBy	Hugo Benioff NERFINISHED ⓘ Kiyoo Wadati NERFINISHED ⓘ
evidenceFor	plate tectonics theory ⓘ subduction theory ⓘ
extendsFrom	near oceanic trench ⓘ
extendsToDepth	about 700 km ⓘ
extendsToward	volcanic arc ⓘ
formedBy	subduction of a lithospheric plate ⓘ
locatedIn	subducting tectonic plate ⓘ
mechanism	brittle failure of cold subducting lithosphere ⓘ dehydration embrittlement ⓘ phase transformations in mantle minerals ⓘ
namedAfter	Hugo Benioff NERFINISHED ⓘ
notedExample	Andean subduction zone NERFINISHED ⓘ Cascadia subduction zone NERFINISHED ⓘ Japan subduction zones ⓘ Tonga–Kermadec subduction zone NERFINISHED ⓘ
occursWithin	descending slab ⓘ
orientation	dipping into the mantle ⓘ
relatedTo	global plate tectonics ⓘ mantle wedge processes ⓘ volcanic arc magmatism ⓘ
seismicHazard	can generate damaging regional shaking ⓘ source of large intermediate-depth earthquakes ⓘ
seismicityType	intraslab earthquakes ⓘ normal-fault earthquakes ⓘ strike-slip earthquakes ⓘ thrust-fault earthquakes ⓘ
studiedBy	seismologists ⓘ tectonophysicists ⓘ
timeOfDiscovery	early 20th century ⓘ
typicalDipAngle	about 30 to 70 degrees GENERATED ⓘ
usedFor	estimating dip angle of subduction ⓘ inferring plate convergence direction ⓘ mapping geometry of subducting slabs ⓘ

Referenced by (5)

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

Izu–Bonin–Mariana Trench system → associatedWith → Benioff zone ⓘ

this entity surface form: Benioff seismic zone

Hugo Benioff → hasPartNamedAfter → Benioff zone ⓘ

Hugo Benioff → notableConcept → Benioff zone ⓘ

Victor Benioff → notableConcept → Benioff zone ⓘ

Aleutian subduction system → seismicZoneType → Benioff zone ⓘ

this entity surface form: Wadati–Benioff zone