( ( ( The ( ( ( second and ) ( more familiar ) ) method ) ) ( of ( measuring ( earthquake intensity ) ) ) ) ( ( is ( ( the ( Richter Scale ) ) ( of Magnitude ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (ADJP (ADJP (JJ second)) (CC and) (ADJP (RBR more) (JJ familiar))) (NN method)) (PP (IN of) (S (VP (VBG measuring) (NP (NN earthquake) (NN intensity)))))) (VP (VBZ is) (NP (NP (DT the) (NNP Richter) (NNP Scale)) (PP (IN of) (NP (NNP Magnitude))))) (. .)))
The second and more familiar method of measuring earthquake intensity is the Richter Scale of Magnitude.
(ROOT (S (NP (NNS Seismologists)) (ADVP (RB originally)) (VP (VBD measured) (NP (NP (DT the) (NN intensity)) (PP (IN of) (NP (DT an) (NN earthquake)))) (PP (IN with) (NP (DT the) (JJ mercalli) (NN scale)))) (. .)))
Seismologists originally measured the intensity of an earthquake with the mercalli scale.