How to make an earthquake effect in Roblox?

Recently, I have attempted to make a tool, which serves the purpose as an attack, which deals damage to hit players. Here's a quick briefing of what this tool does; first, it makes a hulk smash type animation in the wielder's humanoid. Then, when anything touches the arms when the animation is proceeding, it creates a giant shock-wave making everything go flying. The trouble is, I made an if statement to do a separate function when the hand completes its animation+hits the ground, which I named, "Mountainsxdxdxd" for some reason, then the ground shakes, the part which I don't know how to re-create. Do I violently make the ground shake with a gyro, or is there another way?

This could kinda simulate an effect.

Shakes camera up and down.

--Earthquake is just the custom name i gave to the event, link this function to however you want to trigger it.
Earthquake.OnClientEvent:Connect(function()
	
	local cam = game.Workspace.CurrentCamera -- get camera
	cam.CameraType = "Track" -- set camera to mode where we can move it without freezing it's position. Chose track because it fits the best.
	
	--Actual effect
	for i=1.5,0,-0.05 do
		if i > 1 then
			i = 1
		end
		cam.CFrame = cam.CFrame + Vector3.new(0,i,0)
		wait(0)
		cam.CFrame = cam.CFrame - Vector3.new(0,i,0)
		wait(0)
	end
	
	--reset camera to original mode.
	cam.CameraType = "Custom"
end)