Explanation

Ten years ago, the earthquake destroyed the city. دس سال قبل زلزلے نے شہر کو تباہ کردیا تھا۔

We normally use ago with the past simple.

We don't use it with the present perfect: I received his letter four days ago.

Not: I have received his letter four days ago.

We should use past indefinite tense for a point of time.