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Southern California Earthquake Data Center

Research Tools

Waveform Data

Seismogram Transfer Program (STP)


What Is STP?
"STP" is a client side program for retrieving waveform data for seismic events from the Southern California Earthquake Data Center. This program can be used via this WWW graphical interface or as a standalone program running on the users local computer. If you have questions, please visit: frequently asked questions.


The STP User Manual (Version 1.01) is now available.


Standalone Version of STP Program recommended for repeated searching of archive
The program can be run standalone on the user's local computer by downloading the software from our product download page. Users who use the standalone version of the software can retrieve the waveforms directly to their local machine.


Graphical Interface to STP Program recommended for one-time access of archive

Please Note: This interface is still under some development. Please email us to inform us of any problems you encounter, or if you have suggestions on how we can improve this interface. Thank you!


In order to use this graphical interface to STP, please enter your full name in the following format (first.last) in the box below and click the START button to begin using STP!



Waveforms retrieved via this graphical interface to stp can be downloaded from the anonymous ftp site. This can be done from the interactive page itself, or by manually running ftp and retrieving the data from pub/stpdata/"username" on NOTE: Waveform files will be deleted from the ftp site 24 hours after they have been retrieved. HAPPY WAVEFORM RETRIEVING!