This morning a 5.2 quake hit Illinois, shaking a large part of the Midwest, with many aftershocks following the main temblor. The quake was believed by USGS scientists to have involved the Wabash fault, an extension of the New Madrid fault . That fault Read More...

One of Explorer's distinguishing features is its ability to connect directly to a wide variety of Web service-based content and a wide variety of local data, both vector and raster, and integrate and manipulate them all in a single map. It's truly in Read More...