Cascadia Subduction Zone

E15671

The Cascadia Subduction Zone is a major convergent plate boundary off the Pacific Northwest coast of North America, capable of generating powerful megathrust earthquakes and tsunamis.

All labels observed (10)

How this entity was disambiguated

Statements (54)

Predicate Object
instanceOf convergent plate boundary ⓘ
megathrust fault ⓘ
subduction zone ⓘ
affectsRegion British Columbia ⓘ
Northern California ⓘ
Oregon ⓘ
Pacific Northwest ⓘ
Washington ⓘ
surface form: Washington State
associatedWith Cascadia earthquake hazard ⓘ
Cascadia tsunami hazard ⓘ
Ring of Fire ⓘ
averageRecurrenceInterval approximately 500 years ⓘ
earthquakeType megathrust earthquake ⓘ
extendsFrom Vancouver Island ⓘ
surface form: Northern Vancouver Island
extendsTo Cape Mendocino ⓘ
hazardType coastal subsidence ⓘ
liquefaction ⓘ
strong ground shaking ⓘ
tsunami ⓘ
knownFor potential for large megathrust earthquakes ⓘ
potential for large tsunamis ⓘ
lastKnownGreatEarthquakeDate January 26, 1700 ⓘ
lastKnownGreatEarthquakeGenerated trans-Pacific tsunami ⓘ
lastKnownGreatEarthquakeMagnitude approximately 9.0 ⓘ
length approximately 1000 kilometers ⓘ
locatedIn Pacific Ocean ⓘ
locatedOffCoastOf British Columbia ⓘ
North America ⓘ
Northern California ⓘ
Oregon ⓘ
Pacific Northwest ⓘ
Washington ⓘ
maximumEstimatedMagnitude 9.0 ⓘ
paleoseismologyEvidenceFoundIn coastal marshes ⓘ
offshore turbidites ⓘ
plateMotionType oblique convergence ⓘ
recurrenceIntervalEstimate approximately 300 to 600 years ⓘ
riskTo Coastal communities of British Columbia ⓘ
Coastal communities of Northern California ⓘ
Coastal communities of Oregon ⓘ
Coastal communities of Washington ⓘ
Portland, Oregon, United States ⓘ
surface form: Portland, Oregon

Seattle ⓘ
Vancouver ⓘ
surface form: Vancouver, British Columbia

Victoria, British Columbia ⓘ
seismogenicZoneWidth approximately 60 to 80 kilometers ⓘ
slipType thrust faulting ⓘ
studiedBy Geological Survey of Canada ⓘ
United States Geological Survey ⓘ
tectonicPlateOverriding North American Plate ⓘ
tectonicPlateSubducting Explorer Plate ⓘ
Gorda Plate ⓘ
Juan de Fuca Plate ⓘ
tsunamiRecordedIn Japan ⓘ

How these facts were elicited

Referenced by (42)

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

Juan de Fuca Plate → subductionZoneName → Cascadia Subduction Zone ⓘ
North American Plate → boundaryFeature → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Canada West Coast → locatedOnTectonicPlateBoundary → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Pacific coast of North America → hasNotableFeature → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Cascadia → overlapsWith → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone region
Explorer Plate → subductionZoneName → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Explorer Plate → adjacentTo → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia forearc
Juan de Fuca Ridge → region → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction system back-arc
Gorda Plate → formsPartOf → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Gorda Plate → subductsAt → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Gorda Plate → associatedWith → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia megathrust
Crescent City, California → tsunamiSourceRegion → Cascadia Subduction Zone ⓘ
Mount Meager massif → tectonicSetting → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Queen Charlotte Fault → connectedTo → Cascadia Subduction Zone ⓘ
eastern Pacific Ocean → hasSubductionZone → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
North Coast Ranges → associatedWith → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone region
North American plate boundary system → hasPart → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Explorer Ridge → near → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Mendocino Fracture Zone → near → Cascadia Subduction Zone ⓘ
Blanco Fracture Zone → associatedWith → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Blanco Fracture Zone → isPartOf → Cascadia Subduction Zone ⓘ
this entity surface form: Juan de Fuca–Pacific plate boundary system
Gorda Ridge → geologicalProvince → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone region
Gorda Ridge → nearbyHazardContext → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia megathrust region
Mount Mazama → geologicalSetting → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
High Cascades → tectonicSetting → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Garibaldi Volcanic Belt → orogeny → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Garibaldi Volcanic Belt → associatedWith → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Mendocino Triple Junction → associatedFault → Cascadia Subduction Zone ⓘ
Cascadian orogeny → relatedTo → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Cascadian orogeny → associatedWith → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia megathrust
Cascadian orogeny → associatedWith → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction earthquakes
Pacific margin of the Americas → includesFeature → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Western Cascades → tectonicSetting → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Pacific–North American plate boundary system → hasPart → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Queen Charlotte Triple Junction → associatedWithTrench → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
East Pacific tectonic system → contains → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Explorer Plate and Juan de Fuca Plate → partOf → Cascadia Subduction Zone ⓘ
subject surface form: Explorer Plate
this entity surface form: Cascadia subduction zone
Blanco Transform → connectsTo → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Cascade Range volcanic province → orogeny → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Cascadia back-arc region → locatedEastOf → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Cascadia back-arc region → associatedWith → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction zone
Cascadia back-arc region → partOf → Cascadia Subduction Zone ⓘ
this entity surface form: Cascadia subduction system