In a soup pot over medium heat, bring the sesame oil and Sriracha to a low simmer then immediately add in the tomatoes and onion. Let the ingredients simmer for 2 to 3 minutes, stirring often.
Add in the garlic, ginger, crushed red pepper garlic powder, and celery salt. Continue cooking, stirring often for 1 to 2 minutes.
Add the water, then using a food processor or blender, blend the mix until smooth.
Add the vegetable broth, soy sauce, and rice vinegar and allow the mix to simmer for 10 minutes.
Add the ramen noodles and continue simmering for 2 minutes.
Add the scallions, stir to combine, then serve.