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Seismic waveforms

Searchable databases and downloadable earthquake and seismic data.

Earthquake Catalogs & Data - CSV / GIS / KML

Earthquake Catalogs - Lists

Earthquake Catalogs - NEIC via FTP

  • 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
    See the read_me file for more information about these files.
  • 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.
  • 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
  • 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).
  • 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

Global & National Data

Earthquake Source & Effects Data

Earthquake Waveform Data

Geodetic Data

Hazards Mapping Data & Earth Structure

Miscellaneous Data & Resources

Regional Data

California & Nevada

Central U.S.

Eastern U.S.

Intermountain West

Pacific Northwest