Earthquake 3D is a freeware earthquake viewing application that's well-designed.
Here is a screenshot to illustrate the features and user interface of this application:
Zoom and spin way around the globe while viewing earthquakes and their magnitude almost in real time thanks to this app. Screenshot of Earthquake 3D - 382px · 328px
WindowTop
AutoHideDesktopIcons
DesktopOK
Mouse Jiggler
OneLoupe