What is the 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. One way to learn about a large earthquake without experiencing it is to conduct a scientifically realistic scenario. 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: Earthquake Preparedness

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Why should people in the eastern U.S. be concerned about earthquakes?

1) Severe earthquakes have occurred in the Eastern U.S.: In November of 1755, an earthquake with an estimated magnitude of 6.0 and a maximum intensity of VIII occurred about 50 miles northeast of Boston, Massachusetts. Boston was heavily damaged. Other strong earthquakes recorded in the continental US were centered in southeastern Missouri near...

What are the Great ShakeOut earthquake drills?

ShakeOut GIF ShakeOut GIF showing what to do in an earthquake if you are near a sturdy desk or table. (Public domain.) The Great ShakeOut earthquake drills are based on scenario earthquakes that could effect the area if they were to actually take place. Great ShakeOut Earthquake Drills are an...

What is the "Triangle of Life" and is it legitimate?

The "Triangle of Life" is a misguided idea about the best location a person should try to occupy during an earthquake. Based on observations of an earthquake in Turkey, the idea doesn't apply to buildings constructed within the United States. Drop, cover, and hold under a table or desk is still the best recommendation , according to the American...

What do I do AFTER an earthquake?

WEAR STURDY SHOES to avoid injury from broken glass and debris. Expect aftershocks CHECK FOR INJURIES If a person is bleeding, put direct pressure on the wound, use clean gauze or cloth if available If a person is not breathing administer CPR DO NOT attempt to move seriously injured persons unless they are in further danger of injury COVER injured...

What can I expect in my house when an earthquake occurs? How do I identify it? What can be done?

The contents of your home may be damaged and can be dangerous: Shaking can make light fixtures fall, refrigerators and other large items move across the floor, and bookcases and television sets topple over. IDENTIFY: Look around your house for things that could fall or move. Ask yourself if your cupboard doors could fly open (allowing dishes to...

What can I do to be prepared for an earthquake?

There are four basic steps you can take to be more prepared for an earthquake: Step 1: Secure your space by identifying hazards and securing moveable items. Step 2: Plan to be safe by creating a disaster plan and deciding how you will communicate in an emergency. Step 3: Organize disaster supplies in convenient locations. Step 4: Minimize...

What emergency supplies do I need for an earthquake?

Fire extinguisher Adequate supplies of medications that you or family members are taking Crescent and pipe wrenches to turn off gas and water supplies First-aid kit and handbook Flashlights with extra bulbs and batteries Portable radio with extra batteries Water for each family member for at least two weeks (allow at least 1 gallon per person per...

What should I do DURING an earthquake?

If you are INDOORS -- STAY THERE! Get under a desk or table and hang on to it ( Drop, Cover, and Hold on! ) or move into a hallway or against an inside wall. STAY CLEAR of windows, fireplaces, and heavy furniture or appliances. GET OUT of the kitchen, which is a dangerous place (things can fall on you). DON'T run downstairs or rush outside while...

What should I NOT do during an earthquake?

DO NOT turn on the gas again if you turned it off; let the gas company do it DO NOT use matches, lighters, camp stoves or barbecues, electrical equipment, appliances UNTIL you are sure there are no gas leaks. They may create a spark that could ignite leaking gas and cause an explosion and fire DO NOT use your telephone, EXCEPT for a medical or...
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Date published: June 3, 2015

ESC Seminar: HayWired Scenario Progress Discussion

ESC Seminar: HayWired Scenario Progress Discussion

Date published: December 11, 2014

HayWired Presents to the California Seismic Safety Commission

HayWired Presents to the California Seismic Safety Commission

Date published: October 10, 2014

Dale Cox Presents ARkStorm and HayWired Scenarios

Dale Cox Presents ARkStorm and HayWired Scenarios

Date published: August 11, 2014

HayWired Working to Identify Interdependencies of Lifelines Including the Internet

HayWired Working to Identify Interdependencies of Lifelines Including the Internet

Date published: April 14, 2014

HayWired meeting with Google in San Francisco

HayWired meeting with Google in San Francisco

Date published: March 21, 2014

SAFRR Participates in Meeting for Ongoing Haywired Scenario Development with Partners

SAFRR Participates in Meeting for Ongoing Haywired Scenario Development with Partners

Filter Total Items: 10
HayWIred scenario earthquake map
December 31, 2018

HayWired scenario earthquake map

HayWIred scenario earthquake map.

Attribution: Natural Hazards
probability of landslides for the HayWired scernario
December 31, 2018

HayWired scenario landslide probabillity map

Map showing probablity of landslides based on the HayWired scenario.

Attribution: Natural Hazards
September 27, 2018

PubTalk 9/2018 - Hayward Earthquake

Title: The 150th Anniversary of the Damaging 1868 Hayward Earthquake: Why It Matters and How We Can Prepare for Its Repeat

  • The Hayward Fault in the heart of the Bay Area is one of the most urbanized faults in the US.
  • Studies of the fault reveal that it has produced 12 large earthquakes in the past 2000 years spaced 100-220 years apart.
  • There
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screen shot of home page of story map
December 31, 2017

The HayWired Scenario: An Urban Earthquake in a Connected World

Screenshot of home page of story map.

Attribution: Natural Hazards
May 25, 2017

PubTalk 5/2017 — Underwater secrets of the Hayward fault zone

Title: Underwater Secrets of the Hayward Fault Zone: Integrated 3D imaging to understand earthquake hazards 

  • Underwater imaging provides a unique opportunity to study urban fault hazards.
  • How do we link surface structures to depths where earthquakes occur?
  • How does "acoustic trenching" help us understand earthquake history?
Image: USGS To Map Hayward Fault Using Seismic Energy from Building Implosion
August 7, 2013

USGS To Map Hayward Fault Using Seismic Energy from Building Implosion

Warren Hall on California State University East Bay's Hayward campus is scheduled to be demolished Aug. 17, 2013 for seismic safety reasons. The landmark building's implosion will produce energy similar to a small earthquake that can be used to study and map the nearby Hayward Fault. In partnership with the university, U.S. Geological Survey scientists will monitor the

...
April 14, 2009

Hayward Fault - A virtual tour demonstration

A virtual tour of the 1868 Hayward Earthquake in Google Earth.

March 30, 2006

PubTalk 3/2006 — The Great 1906 Earthquake

Lessons learned, lessons forgotten, and future directions in earthquake science

By Mary Lou Zoback, Seismologist (and Chair of the Steering Committee, 1906 Earthquake Centennial Alliance)

  • The 1906 California disaster taught us that--
    • the San Andreas Fault is a continuous feature extending nearly the length of the State
...
ESC Seminar: HayWired Scenario Progress Discussion

ESC Seminar: HayWired Scenario Progress Discussion

ESC Seminar: HayWired Scenario Progress Discussion