Question: what was the magnitude of the northridge earthquake
[{'answer': '6.7', 'provenance': [{'wikipedia_id': '267024', 'title': '1994 Northridge earthquake', 'start_paragraph_id': 1, 'start_character': 40, 'end_paragraph_id': 1, 'end_character': 43, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]