The USGS, of course,
has its own earthquake map - a map that tracks the latest earthquakes, their locations and magnitude, but the map has limited zoomability.
Ask.com has a zoomable map of the world on which earthquake activity is displayed. Ask.com’s map is limited when compared to other maps provided by interactive mapping sites but does have a physical feature view, something the others don’t have. It appears that
the issue of flooded land mentioned earlier in this blog has been cleared up.
Then, of course, there’s the ubiquitous Google Maps mashup of earthquakes -
here and
here, for instance.
By way of
the Resource Shelf.
The USGS has been supporting Google Earth files for monitoring their earthquake data in real-time. They use a network link which automatically updates with current information. You can see all +1 magnitude or greater seismic activity colorized by age here (requires Google Earth).
It's easy to put this in your Places folder to keep handy to check up on whether North Korea has been doing nuclear bomb tests for example. :-)