Statements (18)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:nuclear_test | 
| gptkbp:conductedBy | gptkb:United_States | 
| gptkbp:date | November 6, 1971 | 
| gptkbp:depthOfBurial | about 1,800 meters | 
| gptkbp:environmentalImpact | earthquakes and possible radioactive contamination | 
| gptkbp:largestUndergroundTestInUS | true | 
| gptkbp:location | Amchitka Island, Alaska, United States | 
| gptkbp:platform | gptkb:nuclear_test | 
| gptkbp:publicProtests | significant | 
| gptkbp:purpose | test of the Spartan anti-ballistic missile warhead | 
| gptkbp:relatedTo | ABM Treaty debates | 
| gptkbp:resultedIn | surface deformation and creation of a subsidence crater | 
| gptkbp:series | gptkb:Operation_Grommet | 
| gptkbp:type | underground nuclear test | 
| gptkbp:yield | about 5 megatons | 
| gptkbp:bfsParent | gptkb:Amchitka_Island,_Alaska | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | Cannikin (1971) |