Latest Quake Information
Earthquake updates from the USGS Earthquake Hazards Program - Northern California.
quake.wr.usgs.gov/recent/index.html
Northern California Seismicity Report
Weekly report that provides a brief summary of earthquake activity recorded by the U.S. Geological Survey Northern California Seismic Network in Menlo Park and the University of California Berkeley Seismological Laboratory.
quake.wr.usgs.gov/recent/weekreps/latest/index.html