Topography

ETOPO5 (Global topography, 5 minute resolution)
GTOPO30 (Global topography, 0.5 minute resolution)
DEM1 (U.S. 1 by 1 degree Topography, 0.05 minute resolution), its Index Map , and files sorted by states
DEM7.5 (U.S. 7.5min by 7.5min Topography, 30 meter resolution) and its Index Map
USGS Global Land Information System


Seismicity

Global seismicity (1910-1997, Magnitude >= 4.5)
Western U.S. seismicity (1986-1998, All magnitudes)
Recent earthquakes east of the Rocky Mountains
Earthquake focal spheres (1976-1998, Magnitude >= 5.5)


Volcanoes and hotspots

Holocene volcano locations (1509 of them over the last 10,000 years)
Global distribution of hotspots


Tectonic plates

Tectonic plate boundaries
Depth contours of subducting slabs


Other geophysical data sets

Global gravity anomalies (2 minute resolution)
Global stress map
Seafloor ages (6 minute resolution)
Large Igneous Provinces
U.S. Precipitation FTP site
Parkfield Crustal Deformation Data Retrieval
Parkfield Two-Color Geodimeter Network
California Geothermal, Oil, & Gas Resources
List of meteorite impact structures

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