They are detected using seismometers.
See the related links.
ask them :) although i don't know how rob felt but i do know how Kristen felt........... she felt really weird and freaked.
awesomness
I want to know if felt is an adjective.
I know belly button link comes from felt... but oddly enough, felt is produced from belly button lint too.
I don't know if this answers your question, but the related link below has uses of felt.
you would know right away the way she looks and how she reacts.
Only you will know within you if you felt love.
Harry felt no fright, but he kind felt weird hearing that name
Bad
Felt is a fabric that has been felt or turned into felt by matting and compressing wool fibers. By roughing up the surface of the woolen fabric, it becomes not only more durable but more flexible as well.
i know for myself when i got my period in felt fine but something was different because my stomach was hurting and i felt like i was going to be angry and upset all day and when i found out i was on it then i kind of felt better but i had to take pain free peels and i sleep everytime i get it now.
When he didn't know her name, he felt abasement