A new Kickstarter project called Raspberry Shake is a DIY seismograph that tracks everything from nearby footsteps to deep-earth tremors. The name comes from the device's plug-and-play use of the Raspberry Pi, a popular and affordable single-board computer.
While the Kickstarter page clarifies that the Raspberry Shake will not track some of the earthquake subtleties that more expensive, non-consumer-targeted seismographs would pick up, it should graph quite a bit. According to the Kickstarter page, "Raspberry Shake is sensor-digitizer that records earthquakes from about magnitude 2 and higher within a radius of 50 miles, and a magnitude 4 and higher in a radius of 300 miles."
The Kickstarter project has already exceeded its target funding goal of $7000 by nearly $80,000, and while the 50 Early Bird offers of $79 have almost all been claimed, the Raspberry Pi is still available for a limited time at the price of $99. Check out the Kickstarter page for more details.