If you are interested in the recent spike in earthquake activity, I discovered this intriguing piece of software (only 858 kb) that is a free download at this link. Quite fascinating and very informative at this particular time.
Zoom and spin your way around the globe while viewing earthquakes in 3D. Adjust and customize the display to see earthquakes in a variety of different ways. Filter earthquakes by size and time – then select from many options that include quake indicators and map references. Earthquakes are shown in near real-time using the latest data from the USGS via the Internet.