HayWired Scenario

The HayWired earthquake scenario, led by the U.S. Geological Survey (USGS), anticipates the impacts of a hypothetical magnitude-7.0 earthquake on the Hayward Fault. The fault is along the east side of California’s San Francisco Bay and is among the most active and dangerous in the United States, because it runs through a densely urbanized and interconnected region.

Get Ready! Analyses of impacts related to the HayWired earthquake scenario include estimates for potential fatalities, injuries, water outages, fires, and other major disruptions. These could potentially include: 800 deaths, 16,000 nonfatal injuries, property and direct business interruption losses of more than $82 billion from from shaking alone. The USGS and its partners are working to energize residents and businesses to engage in new and ongoing efforts to prepare the region for such a future earthquake.

Learn more: usgs.gov/haywired
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