This document introduces the earthquake.gem Twitter client written in Ruby. It uses the Streaming API to provide real-time Twitter updates similar to tail -f. Notifications can be sent to desktops using Growl or libnotify. Earthquake is extensible through plugins and filters that can modify input, output, and queue items. Example configurations are provided for shortening URLs in tweets and defining custom commands. The gem needs Ruby 1.9.2 or newer installed using RVM along with required packages.