4.5 is not very much energy relatively speaking. I've not noticed many under 5.5 earthquakes if they last more than a few seconds. How strong it is in any one particular location varies as well. As the energy wave travels it hits different material; it can be slowed down, bend around, etc. If you are driving or going down stairs or whatever it can also easily go unnoticed.
4.5 is not very much energy relatively speaking. I've not noticed many under 5.5 earthquakes if they last more than a few seconds. How strong it is in any one particular location varies as well. As the energy wave travels it hits different material; it can be slowed down, bend around, etc. If you are driving or going down stairs or whatever it can also easily go unnoticed.