Did you feel the earthquake? Here are three ways you can report earthquake-related information and contribute to a global map of critical earthquake data. Did you feel it? Help researchers at the U.S. Geological Survey learn more about the recent earthquake that shook parts of the east coast. Did you feel it? Share information and contribute to a map of shaking intensities and damage. The US Geological Survey's Twitter Earthquake Detection Program gathers real-time, earthquake-related messages from Twitter and applies place, time, and keyword filtering to gather geo-located accounts of shaking Stanford University's Quake-Catcher Network links existing networked laptops and desktops in hopes to form the world’s largest and densest earthquake monitoring system. For a basic primer on earthquakes, here's more from Science Cheerleader, Christine. For more citizen science projects you can do, visit Science For Citizens, a partner in the Changing Planet series produced by Discover magazine, NBC Learn and the National Science Foundation.