(S (S (NP (BASENP (NNS Thousands)) (PP (IN of) (BASENP (NNS people)))) (VP (VBP are) (ADJP (JJ feared) (S (VP (TO to) (VP (VB have) (VP (VBN been) (VP (VBN killed) (PP (IN by) (NP (BASENP (DT the) (NNS tremors)) (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (VBD were) (VP (VBN felt) (ADVP (ADVP (ADVP (RB as)) (ADVP (RB far) (RB away))) (PP (IN as) (BASENP (NNP Venezuela)))))))))))))))))) (PERIOD .))