Science Center Objects

The HayWired scenario examines a hypothetical earthquake (mainshock) with a moment magnitude of 7.0 occurring on April 18, 2018, at 4:18 p.m. on the Hayward Fault in the east bay part of California’s San Francisco Bay area. Most economic, cultural, and personal elements of society have grown entwined with the Internet since the last time California experienced a large urban earthquake. What will happen to an Internet-dependent society when a large earthquake occurs? How do tangible lifelines—roads, power, water, communication, etc.—interact in damage and restoration, and how do they interact with the online world of commerce, social media, and news? How will aftershocks affect recovery? To answer these questions, the HayWired earthquake scenario builds on past studies of a Hayward Fault earthquake and previous scenario development procedures to advance risk analysis and inform disaster planning (preparedness, response, and recovery).

The HayWired scenario was rolled-out with critical infrastructure partners in Fremont and at media event and Lawson lecture in the Berkeley Stadium on April 18, 2018.  

Other sources for HayWired info:



Hazards Societal Consequences and Risk Communication contributions


HayWired Scenario ShakeMap

Figure 1. ShakeMap showing intensity of shaking for the HayWired Scenario.


For The HayWired earthquake scenario,  Anne Wein of WGSC is an editor of the three volumns of the HayWire scenario.: Hazards, Engineering implications, and Societal Consquences. WGSC scientists have been instrumental in spatial analyses have a co-authored many chapters in these volumes including chapters about ground shaking (fig.1) , fault rupture, liquefaction, and aftershock hazards, customized Hazus assessment of building damages, exposure of lifeline infrastructureto hazards and servicer restoration. bebefits of earthquake earthquake early warning, communities at risk, and economic cansequences.

WGSC has co-led workshops about aftershock forecasts for critical infrastructure and emergency management, the HayWired scenatio and informatuion and communication technology. and business impacts and economic consequences.










 An illustration of HayWired's Interdisciplinary Approach

Figure 2. House Diagram of all the parts to HayWired (Public domain.)

As illustrated in fig. 2, the HayWired scenario is an interdisciplinary approach to understanding the effects of a powerful earthquake on a densely populated metropolitan region—California’s San Francisco Bay region. This scientifically realistic scenario builds on innovative earthquake science to examine engineering-related impacts to buildings and lifelines (utilities, communication lines, and roads), as well social and economic consequences. The insights gained from the scenario support the development of public policy that improves earthquake preparedness and emergency response not only in the bay region but also in other