United States Earthquake Intensity Database, 1638-1985

Metadata Updated: February 6, 2017

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 The file is static and is no longer being updated.

Access & Use Information

Downloads & Resources


Metadata Date October 1, 2015
Metadata Created Date September 27, 2015
Metadata Updated Date February 6, 2017
Reference Date(s) January 1, 1972 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

Map of earthquake intensity locations.

Additional Metadata

Resource Type Dataset
Metadata Date October 1, 2015
Metadata Created Date September 27, 2015
Metadata Updated Date February 6, 2017
Reference Date(s) January 1, 1972 (publication)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints
Bbox East Long 180.000000
Bbox North Lat 69.000000
Bbox South Lat 4.000000
Bbox West Long -180.000000
Coupled Resource
Frequency Of Update notPlanned
Graphic Preview Description Map of earthquake intensity locations.
Graphic Preview File http://www.ngdc.noaa.gov/hazard/icons/usaint.jpg
Graphic Preview Type jpg
Guid gov.noaa.ngdc.mgg.hazards:G01142
Harvest Object Id 1e75146b-9de0-46df-a40f-94a089658e9e
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States., While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1638-06-11
Temporal Extent End 1985-12-31

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