Reyna died in a major earthquake and she reincarnates into the past-- and becomes Aurelia, the founder of a very powerful Empire who died so suddenly, the Empire broke into pieces which caused nearly millions of deaths. And a 10 year old cycle which brings disasters to the world.

now that Reyna somewhat has memories of her modern life, will she be able to change the fate or, does she have to?

Alternative: must i change the fate

short story