Science Application for Risk Reduction


Our SAFRR team focuses on building partnerships to improve the use of natural hazards information. We identify information needs and gaps and develop new products that make our science more available to users such as emergency managers, community members, or decision-makers. These efforts increase public safety and reduce economic losses caused by natural hazards.

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SAFRR's HayWired Scenario


The HayWired scenario resources prepare the San Francisco Bay area.

USGS HayWired

Multidisciplinary Projects

Multidisciplinary Projects

SAFRR tackles a variety of multidisciplinary hazards.

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Date published: April 18, 2018

USGS Rolls Out Groundbreaking Earthquake Study: The HayWired Earthquake Scenario

USGS collaborates with key academic, state, local, and industry partners to provide a new look at what could happen during a major earthquake in the San Francisco Bay Area.

Date published: April 6, 2017

Earthquake Early Warning: Vital for City Transit

Although no one can reliably predict earthquakes, today’s technology is advanced enough to rapidly detect seismic waves as an earthquake begins, calculate the maximum expected shaking, and send alerts to surrounding areas before damage can occur. This technology is known as “earthquake early warning” (EEW).

Date published: March 20, 2017

History of Abrupt Sinking of the Seal Beach Wetlands: New Study Reveals Past Quakes along Fault and Offers Glimpse into the Future

Seal Beach, Calif.— A new collaborative study shows evidence of prior abrupt sinking of the wetlands near Seal Beach, caused by ancient earthquakes that shook the area at least three times in the past 2,000 years, according to researchers.


Year Published: 2017

The HayWired Earthquake Scenario

ForewordThe 1906 Great San Francisco earthquake (magnitude 7.8) and the 1989 Loma Prieta earthquake (magnitude 6.9) each motivated residents of the San Francisco Bay region to build countermeasures to earthquakes into the fabric of the region. Since Loma Prieta, bay-region communities, governments, and utilities have invested tens of billions of...

Detweiler, Shane T.; Wein, Anne M.
Detweiler, S.T., and Wein, A.M., eds., 2017, The HayWired earthquake scenario: U.S. Geological Survey Scientific Investigations Report 2017–5013,

Year Published: 2017

The HayWired Earthquake Scenario—Earthquake Hazards

The HayWired scenario is a hypothetical earthquake sequence that is being used to better understand hazards for the San Francisco Bay region during and after an earthquake of magnitude 7 on the Hayward Fault. The 2014 Working Group on California Earthquake Probabilities calculated that there is a 33-percent likelihood of a large (magnitude 6.7 or...

Detweiler, Shane T.; Wein, Anne M.
Detweiler, S.T., and Wein, A.M., eds., 2017, The HayWired earthquake scenario—Earthquake hazards (ver. 1.1, March 2018): U.S. Geological Survey Scientific Investigations Report 2017–5013–A–H, 126 p.,

Year Published: 2016

Get your science used—Six guidelines to improve your products

Introduction Natural scientists, like many other experts, face challenges when communicating to people outside their fields of expertise. This is especially true when they try to communicate to those whose background, knowledge, and experience are far distant from that field of expertise. At a recent workshop, experts in risk communication offered...

Perry, Suzanne C.; Blanpied, Michael L.; Burkett, Erin R.; Campbell, Nnenia M.; Carlson, Anders; Cox, Dale A.; Driedger, Carolyn L.; Eisenman, David P.; Fox-Glassman, Katherine T.; Hoffman, Sherry; Hoffman, Susanna M.; Jaiswal, Kishor S.; Jones, Lucile M.; Luco, Nicolas; Marx, Sabine M.; McGowan, Sean M.; Mileti, Dennis S.; Moschetti, Morgan P.; Ozman, David; Pastor, Elizabeth; Petersen, Mark D.; Porter, Keith A.; Ramsey, David W.; Ritchie, Liesel A.; Fitzpatrick, Jessica K.; Rukstales, Kenneth S.; Sellnow, Timothy L.; Vaughon, Wendy L.; Wald, David J.; Wald, Lisa A.; Wein, Anne; Zarcadoolas, Christina
Perry, S.C., Blanpied, M.L., Burkett, E.R., Campbell, N.M., Carlson, A., Cox, D.A., Driedger, C.L., Eisenman, D.P., Fox-Glassman, K.T., Hoffman, S., Hoffman, S.M., Jaiswal, K.S., Jones, L.M., Luco, N., Marx, S.M., McGowan, S.M., Mileti, D.S., Moschetti, M.P., Ozman, D., Pastor, E., Petersen, M.D., Porter, K.A., Ramsey, D.W., Ritchie, L.A., Fitzpatrick, J.K., Rukstales, K.S., Sellnow, T.S., Vaughon, W.L., Wald, D.J., Wald, L.A., Wein, A., and Zarcadoolas, C., 2016, Get your science used—Six guidelines to improve your products: U.S. Geological Survey Circular 1419, 37 p.,