Geologic Time Machine. Nice!
Igneous Rocks An intereesting set of pages on igneous rocks (with a few questionable statements).
National Eathquake Information Center: information on recent and large earhtquakes
Community Shake maps:Modified Mercalli Intensity as reported by community members
Crater Lake/ Wizard island, OR An interesting site all about Crater Lake andother links...
Mt. St Helens... Nice pictures and information!
Volcanoes Around the World... A nice page with images and information on volcanoes, region by region.
Continents Through Time. An interesting set of pages showing the location of the continents at different times in the past. (Just a bit slow...)
Textures. Here is a nice web page showing images of the textures of rocks.
Dec 9, 2003: M 4.5 Virgina earthquake
Web site at the University of Cincinnati with images of glaciers and gacial features