Words given on the left side of (::) are related with each other by some Logic/Rule /Relation. Select the missing word/word pair on the right side of (::) from the given alternatives based on the same Logic/Rule/Relation.

Heart : Cardiology :: Earthquakes : ?

Seismology

Heart : Cardiology :: Earthquakes : ?

The logic followed here is :

Heart is studied in Cardiology

Similarly

Earthquakes : ?

Eathquakes are studied in Seismology