Southern California Earthquake Data Center

 FDSN Dataselect Web Service

The dataselect webservice gives access to multiple channels of FDSN miniSEED data for specified time ranges.

** Notice ** Waveforms for continuous data requests downloaded between March 3rd 2017 13:00:00 PST to March 7th 2017 14:00 PST are shifted by 1 second due to a bug in our archival. The issue has been fixed. Please re-run your requests made between those dates. Triggered data was not affected. To see a full list of service parameters and their usage, click

URL Builder

  1. Use dashes (-) instead of blank spaces. For e.g. loc=--
Time & Quality
    Format : YYYY-MM-DDTHH:MM:SS
URL: /fdsnws/dataselect/1/query?

Note : Requested time windows that don't fit this formula will return no data.
(timewindow / 1 / sr + 100) <= 400 * 1024 * 1024 / 4
timewindow is end-start in seconds, sr is sample rate of the channel

Submission Form


Retrieve the WADL associated with this service: application.wadl

Please use the citation: 
SCEDC (2013): Southern California Earthquake Data Center. Caltech. Dataset. doi:10.7909/C3WD3xH1
to cite data downloaded from the SCEDC.
Version: FDSN Dataselect Service:1.1.0
Division of Geological and Planetary Sciences | California Institute of Technology