( Furthermore ( , ( ( ( ( the amplitude ) ( -LRB- ( height -RRB- ) ) ) ( of ( ( the ( S wave ) ) ( recorded ( at ( the station ) ) ) ) ) ) ( ( can ( be ( used ( to ( determine ( earthquake magnitude ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Furthermore)) (, ,) (NP (NP (NP (DT the) (NN amplitude)) (PRN (-LRB- -LRB-) (NP (NN height)) (-RRB- -RRB-))) (PP (IN of) (NP (NP (DT the) (NNP S) (NN wave)) (VP (VBN recorded) (PP (IN at) (NP (DT the) (NN station))))))) (VP (MD can) (VP (VB be) (VP (VBN used) (S (VP (TO to) (VP (VB determine) (NP (NN earthquake) (NN magnitude)))))))) (. .)))
Furthermore, the amplitude (height) of the S wave recorded at the station can be used to determine earthquake magnitude.
(ROOT (S (NP (NP (DT The) (NN height)) (PP (IN of) (NP (DT the) (NN wave)))) (VP (VBZ is) (VP (VBN used) (S (VP (TO to) (VP (VB determine) (NP (NP (DT the) (NN magnitude)) (PP (IN of) (NP (DT an) (NN earthquake))))))))) (. .)))