Seismic Stations in the ISC Bulletin

The ISC Bulletin contains arrivals from 32,000 stations, these are part of the International Seismograph Station Registry ( FDSN network code IR) and data from stations registered as part of the International Federation of Digital Seismograph Networks (FDSN).

The project to extend the use of stations beyond the IR and expand the level of detail of arrival data is detailed on the ISC ADSL project page

Sponsored by:


Stations contributing to the ISC Bulletin


Both indicates that a station has been reported to the ISC as IR and with a network code, depending on the reporting agency. ADSL alone means there is no IR code equivalent.

Station File download

A combined IR and FDSN station list of stations in the ISC Bulletin in station xml, text format and KMZ, is downloadable using the links below.

Please note:

  • That depth and elevation are compulsary in stationXML so have to be set to 0 when not known.
  • The text file has data for Network, Station, Latitude, Longitude, Elevation, Channel, Location, Opendate, Closedate and Sitename.
  • Open and close dates of IR stations are often not known or have been set based on data reporting.

Station search

The station book may be searched by station codes, or by defining a search region.

Station registration

Only new stations that you wish to have as part of the IR (International Registry) can be registered at the ISC, registration page.

Otherwise please see the International Federation of Digital Seismograph Networks (FDSN) or other agency as appropriate.

Please note, this is the first version of the new station pages and changes are to be expected.