There were around 11,460 peple who got injured in this big earthquake.
应去掉(who got)改为:
There were around 11,460 peple injured in this big earthquake.
或改写为:
Around 11,460 people were injured (hurt) in this earthquake.为什么不能用定语从句？可以的但不够简洁。 There were around 11,460 peple, who have been injured in this big earthquake.远不比Around 11,460 people were injured in this earthquake. 简明。There were around 11,460 peple, who have been injured in this big earthquake. 定语从句为什么不用过去式很对不起，打错了字，应该是:who had been injured...为什么？因为受了伤是已发生了的事。所以要用: had been injured 过去完成式。