The purpose of a seismotectonic map is to describe the distribution of historic seismic activity in relation to geologic structures and tectonic provinces and to identify structures or regions that are characterized by consistent relations between seismic activity and structural features. An experimental study to test the feasibility of preparing such a map and its usefulness in evaluating earthqu

All Maps

Fundamental Science Practices

USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.

Reconnaissance geologic map of the Electric Peak Quadrangle, Custer and Saguache counties, Colorado

Reconnaissance geologic map of the Fairplay West, Mount Sherman, South Peak, and Jones Hill 7 1/2 minute quadrangles, Park, Lake, and Chaffee counties, Colorado

Reconnaissance geologic map of the Hayfork Quadrangle, Trinity County, California

Reconnaissance geologic map of the Pine Quadrangle, Jefferson County, Colorado

Reconnaissance geologic map of the Plunket Point Quadrangle, Transantarctic Mountains, Antarctica

Reconnaissance geologic map of the Rockvale Quadrangle, Custer and Fremont counties, Colorado

Reconnaissance photointerpretation map of landslides in parts of the Hopland, Kelseyville, and Lower Lake 15-minute quadrangles, Sonoma County, California

Reference mosaic of Mercury

Relative susceptibility of lakes to water-quality degradation in the southern Hood Canal area, Washington

Reported occurrences of selected minerals in the southern third of California

Sediment source and deposition sites and erosional and depositional provinces, Marin and Sonoma Counties, California

Seismotectonic map of the Eastern United States

U.S. Geological Survey

U.S. Department of the Interior