(S (S (PP (IN At) (BASENP (PRPD its) (NN center))) (COMMA ,) (S (NP (BASENP (DT the) (NN depth)) (PP (IN of) (BASENP (DT the) (NN earthquake)))) (VP (VBD had) (VP (VBN been) (VP (VBN measured) (PP (IN at) (NP (BASENP (NN ten) (NNS kilometers)) (PRN (LRB -LRB-) (BASENP (NN 6.2) (NNS miles)) (RRB -RRB-))))))))) (PERIOD .))