Southern California Earthquake Data Center


The Southern California Earthquake Data Center (SCEDC) is the archive of the Southern California Seismic Network (SCSN). It is funded by the U.S. Geological Survey (USGS) and the Southern California Earthquake Center (SCEC). Its primary mission is to distribute data recorded or processed by the SCSN.


Seismic Network Updates
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Worldwide Earthquakes
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Researcher derived location catalogs now available via FDSN Event webservices. 08/28/2017


Join the California earthquake drill ShakeOut on Oct 19, 2017 10:19am PDT 08/28/2017


New focal mechanism catalog for 2015-2016 now available. 01/04/2017


Improved polygon search now available on SCEDC catalog search pages. 12/13/2016


** NOTICE ** On October 19, 2016 the SCEDC will be transitioning to its new archival system. We expect web services and STP to be offline from 10am - 12pm PDT. Please report any issues to if you see any issues accessing SCEDC archives.