(S (S (PP-SBJ (NP (PP (NP (BASENP (NN マグニチュード)) (BASENP (NN ５．８))) (IN の)) (NN 地震)) (IN が)) (COMMA 、) (VP (PP-OBJ (NP (S-REL (SBAR (S-NSBJ (ADJP (NN まれ))) (INCON ながら)) (S (ADVP (RB 時々)) (S (PP-SBJ (BASENP (JJ 大きい) (NN 地震)) (IN が)) (VP (VB 起こる))))) (NN 場所)) (IN を)) (VP (VBV 襲っ) (VP (MD た))))) (PERIOD 。))
マグニチュード 5.8 の 地震 が 、 まれ ながら 時々 大きい 地震 が 起こる 場所 を 襲っ た 。
A magnitude 5.8 earthquake has struck in a place where earthquakes are rare , but sometimes large .