USGS.gov | Science for a changing world
Dec 14, 2025 · Part of the U.S. Department of the Interior, the USGS began in 1879 to study the nation’s lands and resources. Today, we monitor, analyze, and predict Earth’s changing systems.
U.S. Geological Survey (USGS) | USAGov
The U.S. Geological Survey (USGS) is the nation's largest water, earth, and biological science and civilian mapping agency. It collects, monitors, analyzes, and provides scientific understanding of …
Latest Earthquakes
2025-12-19 15:29:54 (UTC-08:00) 40.3 km
USGS - EarthExplorer
The provided maps are not for purchase or for download; they are to be used as a guide for reference and search purposes only; layers not owned or managed by the USGS may not reflect new naming …
Lehigh County Pennsylvania Township Maps - usgwarchives.net
The township images are cropped from a 1/50,000 USGS Geological Survey Map of Lehigh County dated 1987; based on 1/24,000 maps dated 1956 through 1965. Adjacent counties shown on the …
Topographic Maps | U.S. Geological Survey - USGS.gov
US Topo is the current USGS topographic map series for the Nation. These are modeled on the legacy 7.5-minute maps, but are mass-produced from GIS databases of The National Map and published as …
Earthquakes | U.S. Geological Survey - USGS.gov
Earthquake Photo Collections USGS and non-USGS collections of earthquake-related features and effects and shaking damage. Search Earthquake Catalog View historic seismicity, find past …