I was on top of a 5.0 and barely felt it. People need to remember it’s a logarithmic scale.
Exactly 4.0 is considered barely perceptible if it’s a shallow quake practically right under your feet.
The largest quake I’ve ever felt was an 8.3 off the coast of Guam in the 90’s. It caused major damage to buildings built to withstand major quakes all over the island.
A newly constructed 5 star resort hotel completely collapsed. It had not yet been occupied. Thank God. Turns out the South Korean company building it cut many corners to keep costs down.