The National Atlas of the United States displays several hundred layers of GIS data for the United States. The data is organized into the following categories.
Agriculture (Information about Farms, Livestock, and Crops) Environment (Information about hazardous sites) People (Information about crime rates, economy, food stamps, jobs, mortality rates, population density, etc.) Biology [...]
The Geologic Map of North America was published in 2005 by John C. Reed, Jr. (USGS), John O. Wheeler (Geological Survey of Canada), and Brian E. Tucholke (Woods Hole Oceanographic Institution). This is an amazing piece of work that covers the entire continent of North America at a scale of 1:5,000,000. The map [...]
On Saturday, February 27 at 6:34:14 UTC, a magnitude 8.8 earthquake occurred near Maule, Chile. News is just starting to come in so not sure how much damage there will be from this earthquake.
I will start working on a collection of map and earthquake data overlays for Google Earth. I will continue [...]
This Geologic map of Oregon consists of semi-transparent colored polygons that cover the entire state.
Click on a colored area to get the applicable geologic unit symbol. Then open up the Legend to look up the symbol and the characteristics of that geologic unit.
Google Earth Library
The European Digital Archive on Soil Maps of the World (EuDASM) is a massive repository of scanned soil and geologic maps covering large areas of Africa, Asia, Canada, Caribbean Islands, Europe, Latin America, and the United States. The maps were archived over the years by ISRIC – World Soil Information and were recently been [...]
This collection contains 28 1×2 degree geologic maps covering the entire state of California.
The 1:250,000 scale maps were produced in the 1960s and 1970s by the USGS and State of California Division of Mines and Geology.
Google Earth Library
California Geological Survey
USGS ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes throughout the world. The maps show the epicenter of the earthquake and are color coded to show relative ground motion.
Individual maps are created for each earthquake event. Unfortunately, the maps must be accessed via their website. But I [...]
This collection of earthquake data displays large magnitude (6.5 and above) earthquakes dating back to 1900. Each earthquake is represented by a colored circle located at the approximate location of the epicenter. The color of the circle represents the number of fatalities and the size of the circle represents the the magnitude of the [...]