Creating the Akira Explosion

So today i attempted to make the main explosion from the end of Akira, and whilst on a very basic level, i.e. basic sphere the gets bigger and a high emissive colour material that has a plannar on it to move towards the centre, i was able to create it. 

I did however run into the issue of ue5 consistently crashing throughout and restarting the progress but i was eventually able to get it to a good place.

To help create the full effect i created a dust/smoke cloud along with rubble that floated into to the sky to mimic what was created in the final scene, along with using cubes to create a makeshift city for the explosion to envelop.