Question Improvement for existing skill effect with Particle System or other solution

Hello everyone,

I've build an Example Project for an Earthquake/Shockwave Effect that I want to create.
Example here. (Effect is triggered with left Mouse button)

My Goal
I wanted to ask if there is a better way to implement this, technically?

My first thought was to use one GameObject as an Projectile and add an Particle System that places the
crevices behind it, but I didn't find a way to achieve this.

So I came up with this solution but I don't like it at all.

Anyone has an good advice?