Northern California Earthquake Catalog Search
Acknowledgements and References
When you use data from the NCEDC, please provide a proper acknowledgementof the data source.
When using the double-difference catalog please use the following two references for the base catalog (1984-2011) and the real-time catalog (2012-present), respectively:
- Waldhauser, F. and D.P. Schaff, Large-scale relocation of two decades of Northern California seismicity using cross-correlation and double-difference methods, J. Geophys. Res.,113, B08311, doi:10.1029/2007JB005479, 2008.
- Waldhauser, F., Near-real-time double-difference event location using long-term seismic archives, with application to Northern California, Bull. Seism. Soc. Am., 99, 2736-2848, doi:10.1785/0120080294, 2009.
Questions, Comments, and Feedback
We encourage you to contact us at email@example.com with questions, comments and feedback concerning the NCEDC.