National Geophysical Data Center (NGDC), NOAA Satellite and Information Service

Back to Collection NOAA/NESDIS/NGDC/MGG/Hazards
View Metadata As: Get Data, FAQ, HTML, 19139 XML
Assess Metadata For: Completeness, DOI Readiness, CSW Readiness, Components

United States Earthquake Intensity Database, 1638-1985

browse graphicMap of earthquake intensity locations.
The United States Earthquake Intensity Database is a collection of damage and felt reports for over 23,000 U.S. earthquakes from 1638-1985. The majority of intensities are for U.S. cities, but there are also a few earthquakes and intensities for Panama (1925-1975), the Philippines (1926-1937), and Mexico (1887-1981). The data were compiled from various publications, newspaper reports, and special catalogs. The annual serial "United States Earthquakes," is the principal data source and provides 90 percent of the observations. Most records in the file contain the date and time of occurrence and location of the earthquake, magnitude, focal depth, two-digit state code, name and coordinates of observing city or town, the observed intensity at each town, and the distance from city (or locality) to epicenter. The file consists of more than 150,000 earthquake intensity observations. The data file serves as an important information source for the preparation of intensity histories that are useful for environmental and hazard impact statements. The file is static and is no longer being updated.

Cite this dataset when used as a source.

Search and Download
  • United States Earthquake Intensity Database Search (search)
    Use this form to search the U.S. Earthquake Intensity Database collection of intensities for over 23,000 U.S. earthquakes. The digital database contains information regarding epicentral coordinates, magnitudes, focal depths, names and coordinates of reporting cities (or localities), reported intensities, and the distance from city (or locality) to epicenter. The file is static and is no longer being updated.
Distribution Formats
Distributor Distributor information not available
No point of contact available for this dataset
Documentation links not available.
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • publication: 1972-01-01
Dataset Progress Status Complete
Data Update Frequency: Not planned
Purpose: Environmental and hazard impact studies, Research
Time Period: 1638-06-11  to  1985-12-31
Spatial Bounding Box Coordinates:
N: 69.000000
S: 4.000000
E: 180.000000
W: -180.000000
Spatial Coverage Map:
  • EARTH SCIENCE > Solid Earth > Seismology > Earthquake Occurrences
  • EARTH SCIENCE > Solid Earth > Seismology > Earthquake Dynamics
  • EARTH SCIENCE > Solid Earth > Tectonics > Continental Tectonics
  • INFOTERRA > Disasters > Catastrophic phenomena > Earthquakes
  • INFOTERRA > Lithosphere > Seismic activity > Seismic activity
  • INFOTERRA > Lithosphere > Seismic monitoring > Seismic monitoring
  • Epicenter
  • Hypocenter
  • Seismographs
  • Seismometers
  • Global
Use Constraints No constraint information available
  • Free online
Lineage Statement Lineage statement not available.

Metadata Last Modified: 2015-10-01

For questions about the information on this page, please email: