View Metadata
Global GIS : Earthquake epicenters (1973-2003)
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Identification Information
- Citation
- Originator
- American Geological Institute
- Originator
- Geological Survey (U.S.)
- Originator
- Environmental Systems Research Institute (Redlands, Calif.)
- Originator
- National Earthquake Information Center
- Originator
- National Geophysical Data Center
- Publication Date
- 2003
- Title
- Global GIS : Earthquake epicenters (1973-2003)
- Geospatial Data Presentation Form
- vector digital data
- Collection Title
- Global GIS : global coverage
- Publication Information
- Publication Place
- [Alexandria, VA]
- Publisher
- American Geological Institute
- Online Linkage
- https://hgl.harvard.edu/catalog/harvard-glb-qukepi
- Abstract
- This datalayer is a point coverage representing earthquake epicenters (1973 through March, 2003). Historical data for this layer were derived from: USGS/NEIC, 1973- March 2003: (PDE) Preliminary Determinations of Epicenters, Monthly Listing. This list is the most complete computation of hypocenters and magnitudes done by the USGS NEIC. It is normally produced a few months after the events occur. The publication is called "Preliminary" because the "final" computation of hypocenters for the world is considered to be the Bulletin of the Internation Seismological Centre (ISC), which is produced about two years after the earthquakes occur. The NEIC PDE program contributes about one-third off all data used by the ISC.
- Purpose
- This layer is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. This layer will provide a basemap for layers related to geomorphology or geological analysis, statistical enumeration and analysis, or to support graphical overlays and analysis with other spatial data. More advanced user applications may focus on urban and rural land use planning and related areas including defining boundaries, managing assets and facilities, integrating attribute databases with geographic features, spatial analysis, and presentation output.
- Supplemental Information
- Portions of this metadata are taken directly from the American Geological Institute, Global GIS, Web pages: http://www.agiweb.org/pubs/globalgis/
- Temporal Extent
- Currentness Reference
- ground condition
- Time Period
- Beginning
- 1973
- End
- 200303
- Bounding Box
- West
- -180.000000
- East
- 180.000000
- North
- 87.220000
- South
- -82.060000
- Theme Keyword
- Earthquakes
- Seismic event location
- Seismology
- Theme Keyword Thesaurus
- LCSH
- ISO Topic Category
- geoscientificInformation
- Place Keyword
- Earth
- Northern Hemisphere
- Southern Hemisphere
- Eastern Hemisphere
- Western Hemisphere
- Africa
- Asia
- Australia
- Europe
- North America
- South America
- Place Keyword Thesaurus
- LCSH
- Temporal Keyword
- Access Restrictions
- None.
- Use Restrictions
- For educational non-commercial use only. Harvard University makes no claims, no representations, and no warranties, express or implied, concerning the validity, the reliability or the accuracy of the GIS data and GIS data products furnished, including the implied validity of any uses of such data.
- Status
- Complete
- Maintenance and Update Frequency
- None planned
- Point of Contact
- Contact Organization
- Geological Survey (U.S.)
- Delivery Point
- Box 25046, DFC, MS 966
- City
- Denver
- State
- CO
- Postal Code
- 80225-0046
- Country
- USA
- Contact Telephone
- 303-273-8500
- Contact Facsimile Telephone
- 303-273-8450
- Contact Electronic Mail Address
- sedas@usgs.gov
- Hours of Service
- 9 am. to 5 pm. U.S. Mountain Time Zone
- Credit
- Acknowledgment of the National Earthquake Information Center (NEIC) would be appreciated in products derived from these data.
- Native Data Set Environment
- Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.0.0.535
- Collection
- Originator
- American Geological Institute
- Originator
- Geological Survey (U.S)
- Originator
- Environmental Systems Research Institute (Redlands, Calif.)
- Originator
- Hearn, Paul P.
- Publication Date
- 2003
- Title
- Global GIS : global coverage
- Geospatial Data Presentation Form
- digital data
- Series Information
- Series Name
- U.S. Geological Survey digital data series
- Issue Identification
- DDS-62A-H
- Publication Information
- Publication Place
- [Alexandria, VA]
- Publisher
- American Geological Institute
- Other Citation Details
- 1 DVD-ROM; Developed by the U.S. Geological Survey; Published by the American Geological Institute; by P. Hearn ... [et al.].
- Data Quality Information
- Logical Consistency Report
- Unknown
- Completeness Report
- Unknown
- Lineage
- Source
- Originator
- National Earthquake Information Center
- Publication Date
- Unknown
- Title
- Preliminary determination of epicenters.
- Geospatial Data Presentation Form
- document
- Publication Information
- Publication Place
- [Golden, Colo.?]
- Publisher
- U.S. Dept. of the Interior, Geological Survey, National Earthquake Information Service
- Type of Source Media
- paper
- Source Temporal Extent
- Time Period Information
- Range of Dates/Times
- Beginning Date
- 1973
- Ending Date
- Present
- Source Currentness Reference
- ground condition
- Contribution
- Source from which data is derived.
- Spatial Data Organization Information
- Direct Spatial Reference Method
- Vector
- Point and Vector Object Information
- SDTS Terms Description
- SDTS Point and Vector Object Type
- Entity point
- Point and Vector Object Count
- 347070
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Geographic
- Latitude Resolution
- 0.000001
- Longitude Resolution
- 0.000001
- Geographic Coordinate Units
- Decimal degrees
- Geodetic Model
- Horizontal Datum Name
- North American Datum of 1927
- Ellipsoid Name
- Clarke 1866
- Semi-major Axis
- 6378206.400000
- Denominator of Flattening Ratio
- 294.978698
- Vertical Coordinate System Definition
- Altitude System Definition
- Altitude Datum Name
- Unknown
- Altitude Resolution
- 1.000000
- Altitude Distance Units
- Unknown
- Altitude Encoding Method
- Explicit elevation coordinate included with horizontal coordinates
- Entity and Attribute Information
- Entity Type
- Entity Type Label
- Earthquake Epicenters
- Entity Type Definition
- Points represent earthquake epicenters
- Entity Type Definition Source
- USGS
- Attributes
- YEAR
- Year of the event
- 1973-2003
- n/a
- Definition Source
- NEIC
- MONTH
- Month of the event
- 1-12
- n/a
- Definition Source
- NEIC
- DAY
- Day of the event
- 1-31
- n/a
- Definition Source
- NEIC
- TIME_HHMMS
- Time of the event in Universal Time Coordinated (UTC) in hours, minutes, seconds, and decimal seconds expressed as a single real number.
- 000000.0 - 235959.9
- n/a
- Definition Source
- NEIC
- LATITUDE
- Latitude of earthquake
- -90 to 90
- n/a
- Definition Source
- NEIC
- LONGITUDE
- Longitude of earthquake
- -180 to 180
- n/a
- Definition Source
- NEIC
- MAGNITUDE
- Magnitude of the earthquake. It is a logarithmic measure of the "size" of an earthquake. Commonly referred to as the "Richter scale". (1 to 8.8)
- Definition Source
- NEIC
- DEPTH
- Depth of earthquake in kilometers (0 to 700 kilometers (rounded up to nearest km))
- Definition Source
- NEIC
- SOURCE
- Source for earthquake data
- PDE
- Preliminary Determinations of Epicenters, Monthly Listings
- Definition Source
- USGS/NEIC
- SHAPE
- Feature geometry. (Coordinates defining the features.)
- Definition Source
- ESRI
- SHAPE.FID
- Internal feature number. (Sequential unique whole numbers that are automatically generated.)
- Definition Source
- ESRI
- Distribution Information
- Format Name
- Shape
- Distributor
- Harvard Geospatial Library
- Online Access
- http://hgl.harvard.edu/
- Name
- Metadata Reference Information
- Metadata Date
- 20060117
- Metadata Contact
- Contact Information
- Contact Organization Primary
- Contact Organization
- Harvard Geospatial Library
- Contact Position
- Geospatial Resources Cataloger
- Contact Address
- Address
- Harvard University Library
- Address
- Office For Information Systems
- Address
- 1280 Massachusetts Avenue
- City
- Cambridge
- State or Province
- MA
- Postal Code
- 02138
- Country
- USA
- Contact Voice Telephone
- 617-495-2417
- Contact Facsimile Telephone
- 617-496-0440
- Contact Electronic Mail Address
- hgl_ref@hulmail.harvard.edu
- Hours of Service
- Monday - Friday, 9:00 am - 4:00 pm EST-USA
- Metadata Standard Name
- FGDC Content Standards for Digital Geospatial Metadata
- Metadata Standard Version
- FGDC-STD-001-1998
- Metadata Extensions
- Online Linkage
- http://www.esri.com/metadata/esriprof80.html
- Profile Name
- ESRI Metadata Profile
