Metadata Identifier: gov.noaa.ngdc.mgg.hazards:G01142

Aggregation Info | Bands | Citations | Constraints | Coverage Descriptions | Dimensions | Extents | Formats | Geographic Bounding Box
Georectified Information | Georeferenceable Information | Identifiers | Instruments | Mediums | OnlineResources | Operations
Platforms | Process Steps | Range Elements | Reference Systems | Responsible Parties | Series | Sources | Spatial Grids | Temporal Extents

MD_DataIdentification

Count Component Title Abstract
1 United States Earthquake Intensity Database, 1638-1985 (Superseded Version) The NOAA National Centers for Environmental Information decommissioned the United States Earthquake Intensity Database, 1638-1985 on May 05, 2025 with no further updates. Upon termination, the underlying data will be available from https://doi.org/10.25921/wa4z-d240. Comments and questions may be sent to: ncei.info@noaa.gov. Note this metadata record is accompanied by another newer version of metadata for the same product. 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 The file is static and is no longer being updated.
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SV_Identification

none found
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CI_Citation

Count Component Title Date Citation Identifier
1 GCMD Data Center Keywords Global Change Master Directory (GCMD) Data Center Keywords
    2020-01-09
1 NASA/GCMD Instrument Keywords Global Change Master Directory (GCMD) Instrument Keywords
    2020-01-09
1 NASA/GCMD Location Keywords Global Change Master Directory (GCMD) Location Keywords
    2024
1 GCMD Project Keywords Global Change Master Directory (GCMD) Project Keywords
    2020-01-09
1 NASA/GCMD Science Keywords Global Change Master Directory (GCMD) Science Keywords
    2024
1 INFOTERRA Keyword Thesaurus
    1 International DOI Foundation (IDF)
      1 Modified Mercalli Intensity Scale of 1931
        1931-12-01
      1 NOAA National Centers for Environmental Information
        1 Uncontrolled Keywords
          1 United States Earthquake Intensity Database, 1638-1985 (Superseded Version)
            1972-01-01
          		doi:10.25921/wa4z-d240
          NCEI Metadata ID: gov.noaa.ngdc.mgg.hazards:G01142
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          CI_Series

          Count Component Name Issue Identification Page
          1 Bulletin of the Seismological Society of America 21(4)
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          CI_ResponsibleParty

          Count Component Individual Organization Position Email Role Linkage
          1 https://pubs.geoscienceworld.org/ssa/bssa/article-pdf/21/4/277/5299070/bssa0210040277.pdf
          5 GCMD Landing Page Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) custodian https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
          3 NCEI (pointOfContact) ncei.info@noaa.gov pointOfContact https://www.ncei.noaa.gov/contact
          1 ncei.info@noaa.gov publisher https://www.ncei.noaa.gov/contact
          1 Anna Milan NOAA National Centers for Environmental Information Metadata Specialist editor
          1 Neumann, Frank author
          1 United States Geological Survey (USGS) originator
          1 United States Geological Survey > Earthquakes Hazards Program originator https://earthquake.usgs.gov/
          1 Wood, Harry O. author
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          CI_OnlineResource

          Count Component Linkage Name Description Function
          2 https://doi.org/10.25921/wa4z-d240 NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information
          1 https://earthquake.usgs.gov/ United States Geological Survey (USGS) Earthquakes Hazards Program The USGS Earthquake Hazards Program is part of the National Earthquake Hazards Reduction Program (NEHRP), established by Congress in 1977. We monitor and report earthquakes, assess earthquake impacts and hazards, and research the causes and effects of earthquakes. information
          5 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information
          1 https://pubs.geoscienceworld.org/ssa/bssa/article-pdf/21/4/277/5299070/bssa0210040277.pdf Modified Mercalli Intensity Scale of 1931 download
          4 https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information
          1 https://www.ngdc.noaa.gov/hazard/data/publications/eqint_tsqp.xlsx United States Earthquake Intensity Database Direct file download link for the U.S. Earthquake Intensity Database, a 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 database file is static and is no longer being updated. download
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          MD_Identifier or RS_Identifier

          Count Component Code
          1 NCEI Metadata ID: gov.noaa.ngdc.mgg.hazards:G01142
          1 doi:10.25921/wa4z-d240
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          EX_Extent

          Bounding Box Temporal Extent
          Count Component Description West East North South Start End
          1 -180.000000 180.000000 69.000000 4.000000 1638-06-11 1985-12-31
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          EX_GeographicBoundingBox

          Count Component West East North South
          1 -180.000000 180.000000 69.000000 4.000000
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          EX_TemporalExtent

          Count Component Start End
          1 1638-06-11 1985-12-31
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          MD_Format

          Count Component Name Version specification
          1 Microsoft Excel Spreadsheet
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          MD_Medium

          none found
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          MD_Constraints

          Count Component Use Limitation
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          MD_ReferenceSystem

          none found
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          MD_GridSpatialRepresentation

          none found
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          MD_Georeferenceable or MI_Georeferenceable

          none found
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          MD_Georectified or MI_Georectified

          none found
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          MD_Dimension

          none found
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          MD_CoverageDescription or MI_CoverageDescription

          Count Component Attribute Description Content Type
          1 Event Date
          1 Earthquake Parameters
          1 Felt Report Parameters
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          MD_Band or MI_Band

          Count Component Identifier Descriptor
          1 Latitude Distance measured north or south from the equator. Distance north is positive, distance south is negative.
          1 Longitude Longitude is measured from the Prime Meridian (which is the north/south line that runs through Greenwich, England), values measured east are positive and values measured west are negative.
          1 Focal Depth The depth of the earthquake is given in kilometers, positive downward.
          1 Magnitude The value in this column contains the earthquake magnitude, it is usually the Ms magnitude. The Ms magnitude is the surface-wave magnitude of the earthquake. The magnitude is a measure of seismic energy. The magnitude scale is logarithmic. An increase of one in magnitude represents a tenfold increase in the recorded wave amplitude. However, the energy release associated with an increase of one in magnitude is not tenfold, but about thirtyfold. For example, approximately 900 times more energy is released in an earthquake of magnitude 7 than in an earthquake of magnitude 5. Each increase in magnitude of one unit is equivalent to an increase of seismic energy of about 1.6 x 10,000,000,000,000 ergs.
          1 City Name The City where the felt report occurred.
          1 State The State or Province abbreviation where the felt report occurred.
          1 Felt Report Latitude Distance measured north or south from the equator. Distance north is positive, distance south is negative.
          1 Felt Report Longitude Longitude is measured from the Prime Meridian (which is the north/south line that runs through Greenwich, England), values measured east are positive and values measured west are negative.
          1 Epicentral Distance The distance from the earthquake source to the felt report location.
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          MI_RangeElementDescription

          Count Component Name Definition
          1 Modified Mercalli Intensity (MMI) The Modified Mercalli Intensity (Int) is given in Roman Numerals (converted to numbers in the digital database).
          1 Unpublished or Group Intensity Definition not provided.
          1 Country The Country where the felt report occurred.
          1 Data Source This is a code referring to the source of one or more of the reported parameters (e.g., epicenter, city and intensity). References are listed below.
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          MD_AggregateInformation

          Count Component Title Code Association Type Code
          1 Modified Mercalli Intensity Scale of 1931 crossReference
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          LE_Source or LI_Source

          none found
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          LE_ProcessStep or LI_ProcessStep

          Count Component DateTime Description
          1 Earthquake intensity data is gathered.
          1 2015-04-22T00:00:00 NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
          1 2025-05-05T00:00:00Z The NOAA National Centers for Environmental Information decommissioned the United States Earthquake Intensity Database, 1638-1985 on May 05, 2025 with no further updates. Upon termination, the underlying data will be available from https://doi.org/10.25921/wa4z-d240. Comments and questions may be sent to: ncei.info@noaa.gov
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          MI_Operation

          none found
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          MI_Platform

          none found
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          MI_Instrument

          none found
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