This project will help you record earthquakes from around the world and start your amateur seismology projects.. The seismometer is fairly easy to build and doesn’t require any fancy parts, just your usual electronics store or radio shack will do just fine for the parts supply. There is though an expensive part of this project, the Seismometer software that you will need to use in order to link your sensor to the computer. This software license will need to be bought.
DIY Seismometer: [Link]