AirAtlas is a series of web maps that show estimated air quality statistics for atmospheric deposition, ozone, and visibility in the contiguous U.S. The maps also show National Park Service (NPS) units and monitoring locations for each of those air pollutant categories. Specific estimates of each statistic are available for every NPS unit in the contiguous U.S.

The USGS Earthquake Hazards program has everything you ever wanted to know about earthquakes and more — from maps to tips to trivia to data in a multitude of formats, serving everyone from your neighbor to your neighborhood scientist. The USGS locates about 50 earthquakes each day and 20,000 a year, and 75 million Americans in 39 states live in places that are at risk of earthquakes. Where do you live?