Quiet is the opposite of Loud. Loud is a different concept from Silence. Silence is related to Condition. Condition is a type of Premise. 
Earthquake is derived from Earth. Earthquake is related to Fault. 
Quiet <--Antonym--> Loud <--DistinctFrom--> Silence <--RelatedTo--> Condition --IsA--> Premise 
Earth <--DerivedFrom-- Earthquake <--RelatedTo--> Fault 