This sound effect can be found on Sony Pictures Sound Effects Library Volumes 6-10, which was made by Sound Ideas. It's basically the same sound effect as SKYWALKER, EXPLOSION - MASSIVE INFERNO ROARING, but in reverb. Links: https://soundeffects.fandom.com/wiki/Sound_Ideas,_WWII_Explosion_With_Flare_05_-_Single,_World_War_II_era_explosion_with_flare-up#Audio_Samples