You can download NZ Earthquakes 1.2 for Mac from our software library for free. The actual developer of this free software for Mac is Jan Barnholt. The program relates to Theming Tools.
From the developer:
This screen saver you're about to experience uses the real-time data provided by GeoNet (www.geonet.org.nz) and the Google Maps API (http://maps.google.co.nz/maps) to show the location of the latest earthquakes that occured in New Zealand.
It's a great, informational screen saver that highlights how shaky these islands are!
You may want to check out more Mac applications, such as Was That an Earthquake, Tectonic or QuakeBar, which might be related to NZ Earthquakes.