Scientific Data
Seismic waveforms
Searchable databases and downloadable earthquake and seismic data.
Earthquake Catalogs & Data - CSV / GIS / KML
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Current Earthquake List - Last 7 Days
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Earthquake Catalog Search
After you select either Global, Rectangular, or Circular as your search area, select Spreadsheet Format as the Output File Type.
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Google Earth KML Files
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Largest Earthquakes in the World Since 1900
See: Largest Earthquakes in the World Since 1900
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QED List - Last 30 Days
Updated once a day, at approximately 7:00 AM Mountain Time
Source: Quick Epicenter Determinations (QED) file
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Seismograph Station List
Updated as needed. See: Seismograph Station Information
Earthquake Catalogs - Lists
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ANSS/NEIC Combined Earthquake List
Past 14 days. Using the publically available software QDDS and QDM, we maintain a catalog of earthquakes that merges the catalogs of the NEIC with those of the US Advanced National Seismic System (ANSS) regional networks. The catalog is preliminary and dynamic. It is continually being updated as event parameters are updated, new events are added, and, occasionally, events are deleted. Although the events contributed by the NEIC are always reviewed by an analyst, some of the regional networks submit computer generated solutions initially, which are later replaced by reviewed solutions. This file is intended to be read by computer programs. Description of format for ASCII file. A more readable format is also available.
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Catalogs, Latest - Last 7 Days
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Centennial Catalog
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Intraplate Earthquakes (495-2002)
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ISS - International Seismological Summary Earthquake Catalog (1918-1963)
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PAGER-CAT
Combines high-quality source and casualty estimates gathered from several published catalogs for earthquakes of magnitude M 5.5 and greater. Created for calibration of earthquake fatality and loss estimation models such as those to be used by the USGS Prompt Assessment of Global Earthquakes for Response (PAGER) system.
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Preferred Magnitudes of Selected Significant Earthquakes (Word file)
(last updated 2008/08/21)
Earthquake Catalogs - NEIC via FTP
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Monthly Bulletin (EDR)
Available in several formats in subdirectories. The filenames are isfbulYYYYMM.dat, mchedrYYYYMM.dat.Z and ofedrYYYYMMN.dat, where YYYY is the year, MM is the month and N is a sequence number, and all contain the EDR data. Check the read_me file for more information. The mchedr format is available from 1990 and the isf format is available from 1999. The /edr directory also contains the following miscellaneous monthly files:- Unassociated readings, in files named isfarrYYYYMM.dat
- Station data contribution summaries, in files named sdrYYYYMM.dat
- Mining seismicity bulletins
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Monthly EHDF Files
1990 to the current monthly bulletin in-press. These are similar to the PDE monthly bulletins but are in a different format. The filenames are ehdfYYYYMM.dat, where YYYY is the year and MM is the month (e.g. ehdf199001.dat). Check the read_me file for more information. The ehdf.txt file contains the format.
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PDE Monthly Listing
1994 to most recent. The filenames are monYYYYMM.lis, where YYYY is the year and MM is the month (e.g. mon199801.lis). Beginning March 2001, the maps that were originally published in the paper listing are now available electronically. They are postscript files and are named monYYYYMMak.ps for earthquakes in Alaska, monYYYYMMus.ps for earthquakes in the United States, and monYYYYMMworld.ps for worldwide earthquakes. The earthquake focal mechanisms are in monYYYYMMfm.ps
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PDE Weekly Listing
2008 to most recent. The filenames are pdeYYYY##w.lis, where YYYY is the year and ## is the corresponding WEEK of the year (e.g. pde199801w.lis).
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Weekly EHDF and EDR Files
2008 to the current PDE. The filenames are ehdfYYYY##w.dat and mchedrYYYY##w.dat, where YYYY is the year and ## is the corresponding WEEK of the year (e.g. ehdf199641w.dat and mchedr199641w.dat). The QED file, which is updated daily, contains the previous 3 weeks of events and is called qedevents.txt. The phase data file for the QED is called mchedrqed.dat. Check the read_me file for more information.
Earthquake Catalogs - Searchable
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Alaska
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Canada
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Eastern U.S.
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International Seismological Centre (ISC)
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National Geophysical Data Center Searches
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Nevada
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New Madrid Region/Central U.S.
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Northern California
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Pacific Northwest
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Southern California
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World - ANSS Composite Catalog
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World - National Earthquake Information Center (NEIC)
Global & National Data
Earthquake Source & Effects Data
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Did You Feel It?
Archives
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Global Centroid Moment Tensor Project
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NEIC Moment Tensor and Broadband Source Parameter Search
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NGDC - National Geophysical Data Center - NOAA EQ Data
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NGDC - NOAA Earthquake Social Data
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NGDC - NOAA Geotechnical Data
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NGDC -NOAA Earthquake Technical Data
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NSMP - National Strong Motion Program Data
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PAGER-Prompt Assessment of Global Earthquakes for Response
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ShakeMap
Archives
Earthquake Waveform Data
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Automatic Data Request Manager - AutoDRM
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IRIS - Incorporated Research Institutes for Seismology Data
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NSMP - National Strong Motion Program Data
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USGS General Earthquake Observation System (GEOS)
Geodetic Data
Hazards Mapping Data & Earth Structure
Miscellaneous Data & Resources
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Flinn-Engdahl Regionalization Files
Also see Flinn-Engdahl Documentation.
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NEIC U.S. Mining Seismicity
Regional Data
California & Nevada
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Average 30-m Shear-Wave Velocity in the Los Angeles Area
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Berkeley Seismological Laboratory
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California Fault Model Repository
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California Geological Survey Strong Motion Data
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Intermountain West Earthquake Lists
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NCEDC - Northern California Earthquake Data Center Archives
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Parkfield Monitoring Data
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Real-time "Low frequency" geophysical and fault monitoring data for Selected California Areas
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SCIGN-Southern California Integrated GPS Network
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SeismiQuery
access data and information stored in the NCEDC Oracle database
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ShakeMap Archives - Northern California
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ShakeMap Archives - Southern California
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Southern California Crustal Deformation Monitoring Data
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Southern California Earthquake Data Center
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Two-Color EDM (Electronic Distance Meter) for Selected California Areas
Central U.S.
Eastern U.S.
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Eastern U.S. Data Access
Archives for Lamont Doherty Seismic Network