Maps and Data

Printable Maps

​Interactive Web Maps and Data

  • Ma​p Data Layer Viewer
    Very versatile and popular! ​Map layers include Earthquake Shaki​ng Potential (CGS Map Sheet 48)​, Tsunami Inundation Zones,

Quadrangle-based indexes to maps and reports


 Other Map Resources

Can't find the map you need? The USGS National Geologic Map Database is an excellent resource.