Shock is a type of Earthquake. Shock is related to Huge. Huge is a synonym of Great. Great is related to Heavy. 
Vertical is a synonym of Sheer. Sheer is related to Slip. Slip is a synonym of Steal. 
Earthquake <--IsA-- Shock <--RelatedTo--> Huge <--Synonym--> Great <--RelatedTo--> Heavy 
Vertical <--Synonym--> Sheer <--RelatedTo--> Slip <--Synonym--> Steal 