Revision History: dataselect v.1

Release 1.1.47 (2026-3-20)

  • GeoCSV improvement (minor changes and time gap issues)
  • Added support for sac.zip delivery

Release 1.1.46 (2026-3-16)

  • Added support for geocsv.zip delivery
  • POST requests optimized for duplicate time ranges

Release 1.1.33: (2026-1-16)

  • Fix digest authorization for user credentials for edge cases of strict clients (e.g. Python/urllib, including ObsPy)

Release 1.1.32: (2026-1-15)

  • Allow code lists for network, station, location, and channel in POST requests

Release 1.1.31 (2025-12-31)

Major new release and transition to EarthScope’s cloud platform.

If you are using this service through the service.iris.edu domain the connections will be redirected using an HTTP 307 to our new service at service.earthscope.org.

  • Restricted data access requires new credentials. Visit https://www.earthscope.org/user, create an account (if you do not already have one), then:
    • navigate to the Credentials tab
    • click “REVEAL MY CREDENTIALS,” and “CREATE FDSNWS CREDENTIALS” if none exist
  • The SAC and text output formats are not yet supported.
  • The service now requires secure HTTPS, specifically TLS 1.2 or later. Requests to the unencrypted HTTP endpoint will be redirected to the HTTPS endpoint according to current best practices.

Some older software may not follow redirects from unencrypted HTTP to secure HTTPS. Configure the software, if possible, to use the direct URL to the service https://service.earthscope.org/fdsnws/dataselect/1

  • The following parameters are permanently retired:
    • quality – Select data based on miniSEED data quality indicator
    • minimumlength – Limit results to continuous data segments of a minimum length
    • longestonly – Limit results to the longest continuous segment per channel
    • repository – Limit results to specified repositories
    • szsrecs – Skip data records with zero samples, such as event detection records
  • With the removal of the szsrecs parameter the service will not remove zero-sample records by default.
  • The service now limits the volume of miniSEED data that will be returned with a single query. We recommend limiting requests to one station for a 24-hour period at the most.
  • The service now returns version 2 miniSEED data records without modification of the quality code. Previously data were marked with an M quality regardless of modification to indicate it had been through a merging process. Now users will see the quality codes of the data as they were submitted to the archive. In some cases this may result in a time series that is composed of data records of more than one quality.
  • Some HTTP response codes for errors have changed to be more precise, but they remain broadly recognized codes.

Release 1.1.9 (2019-05-02)

  • Added support for parameter scale when using GeoCSV format

Release 1.1.8 (2018-11-01)

  • Support for sac.zip and GeoCSV formats

Release 1.1.7 (2018-09-13)

  • Added parameter szsrecs to handle data requests for event detection records

Release 1.1.6 (2018-06-29)

  • Updated service for compatibility with WebServiceShell v 2.4.6

Release 1.1.5 (2017-02-07)

  • Updated service for compatibility with WebServiceShell v 2.2.5

Release 1.1.4 (2017-01-24)

  • Added support for new parameter repository. See documentation for usage details.

Release 1.1.3 (2016-09-30)

  • Updated WSS to version 2.2.3

Release 1.1.2 (2015-03-18)

  • Updated WSS to version 1.1.9 and switched authentication to new backend database.

Release 1.1.1 (2014-10-02)

  • Updated to increase service performance. Effects will vary depending on the quality of the individual network connection to the DMC, with relatively slower connections being unlikely to see substantial improvements.

Release 1.1.0 (2014-04-29)

Release 1.0.1 (2014-02-10):

  • Update to fix request parameter confusion between requests under very high concurrency.

Release 1.0.0 (2013-02-27):

  • Initial release, conforms to fdsnws-dataselect 1.0 with IRIS extensions