I want to know the answer to the following question:
How far away was the plant located from the epicenter?
All the background I'm provided with is that "The Zipingpu Hydropower Plant (simplified Chinese: 紫坪铺水库; traditional Chinese: 紫坪鋪水庫) located 20 km east of the epicenter was damaged.". Is that enough to answer the question?
Answer: yes