(NP (NP (NP (PP (IN At) (NP (BASENP (NN 13.30)) (BASENP (NN GMT)))) (COMMA ,) (NP (BASENP (DT a) (NN magnitude) (NN 6.0) (NN earthquake)) (ADVP (BASENP (NN 800) (NN km)) (ADVP (RB south) (PP (IN of) (BASENP (NNP Tokyo))))))) (PP (VBG according) (PP (TO to) (BASENP (DT the) (NNP Japan) (NNP Meteorological) (NNP Agency))))) (PERIOD .))