U.S. Geological Survey
SAFRR - Science Application for Risk Reduction
The Haywired project is the earthquake scenario currently underway during 2014-2015 to model and study impacts on the San Francisco Bay area from a Mw 7.05 earthquake on the Hayward fault. The study builds upon understanding of the last large earthquake to occur on the Hayward fault in 1868, but with the realization that modern urban infrastructures are made vulnerable by multiple layers of interdependencies between lifelines, with a major reliance on the Internet. This scenario also considers impacts from a sequence of aftershocks following the main earthquake, an aspect often overlooked but an important component of the physical and emotional damage associated with large earthquakes extending into the days and months following.
Additional project information (including a graph of aftershock occurrences and a map of liquefaction probability)
The image in the upper right is the USGS ShakeMap showing intensity of shaking resulting from the Haywired Earthquake Scenario.