Statements (20)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:nuclear_test | 
| gptkbp:country | gptkb:United_States | 
| gptkbp:date | 1971-11-06 | 
| gptkbp:deviceTested | gptkb:W71_warhead | 
| gptkbp:environmentalImpact | gptkb:earthquake concerns about radioactive contamination | 
| gptkbp:location | gptkb:Alaska gptkb:Amchitka_Island | 
| gptkbp:maximumDepth | 1790 meters | 
| gptkbp:notableFor | largest underground nuclear test conducted by the United States | 
| gptkbp:opposedBy | environmental groups | 
| gptkbp:purpose | warhead proof test | 
| gptkbp:relatedTo | gptkb:Project_Vela_Uniform gptkb:Anti-nuclear_movement_in_the_United_States | 
| gptkbp:series | gptkb:Operation_Grommet | 
| gptkbp:type | underground | 
| gptkbp:yield | 5 megatons TNT | 
| gptkbp:bfsParent | gptkb:Amchitka_Island | 
| gptkbp:bfsLayer | 6 | 
| https://www.w3.org/2000/01/rdf-schema#label | Cannikin |