Northern California
Earthquake Data Center

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The Northern California Earthquake Data Center (NCEDC) is a joint project of the University of California Berkeley Seismological Laboratory (BSL) and the United States Geological Survey (USGS). The NCEDC is a long-term archive and distribution center for seismological and geodetic data for Northern and Central California and is partially supported by funding from the USGS component of the National Earthquake Hazards Reduction Program (NEHRP).

**** NOTICE ****

The NCEDC FTP disk that was lost on 2010/02/03 has been restored. Please report any problems you encounter. We apologize for the inconvenience.

For more information about the NCEDC and its data archive, please explore the following links:

News and Updates - Information on new tools, changes, and problems (updated 2008/07/18)
Top Picks - Quick access to popular NCEDC services
Summary of Products - Summary and overview of NCEDC products
Data Collections - Description of the many data available at the NCEDC
Data Access - Tools for retrieving data
Contributing Networks - Summary of the networks that contribute data to the NCEDC
Help - Relevant documentation and reports
FAQ - Frequently Asked Questions

or search the site to find data and information.

We encourage you to contact us with questions, comments and feedback concerning the NCEDC. You can reach us via email at www@ncedc.org or by filling out a comment form.

Northern California Earthquake Data Center
215 McCone Hall, UC Berkeley
Berkeley CA 94720-4760

www@ncedc.org