Southern California Earthquake Data Center

 Web STP

The webstp  webservice gives access to waveform data for multiple networks, stations, channels, 
locations, time ranges and events as well as phase information for events.
** 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. 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. To see a full list of service parameters and their usage, click

Empty lines and lines beginning with the # character are ignored.
Swap byte order
Correct for station gain
Use true start time in headers
Zero fill off

Continuous Triggered STP Phase

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: SCEDC WebSTP Service:1.0
Division of Geological and Planetary Sciences | California Institute of Technology