Earth Science Links
World Earthquake Locator (interactive maps)
Global Volcanism Program (Smithsonian)
JPL/NASA/Cal Tech Earth Science Research
USGS National Earthquake Information Center (NEIC)
Evolving Earth (earth science news)
USGS Recent Earthquakes in Calif./Nev
USGS Recent Earthquakes Worldwide
Cascade Volcanic information (USGS)
Essentials of Geology Animations
USGS Plate Tectonics Educational materials
Natural Hazards (NASA Earth Observatory)