Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted.  For more information, please see www.doi.gov/shutdown

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In conjunction with the seventh anniversary of the 1994, 6.7 Northridge earthquake, the U.S. Geological Survey, in cooperation with the Southern California Earthquake Center (SCEC) and the National Science Foundation (NSF), has produced a two-page fact sheet that explains how geologic conditions in the Los Angeles basin affect the amount of shaking experienced by various areas of the basin.