Title: The 150th Anniversary of the Damaging 1868 Hayward Earthquake: Why It Matters and How We Can Prepare for Its Repeat
What is the probability that an earthquake will occur in the Los Angeles Area? In the San Francisco Bay area?
Los Angeles area:
Within the next 30 years the probability is:
- 60% that an earthquake measuring magnitude 6.7
- 46% that an earthquake measuring magnitude 7
- 31% that an earthquake measuring magnitude 7.5
will occur in the Los Angeles region.
San Francisco Bay area:
Within the next 30 years the probability is:
- 72% that an earthquake measuring magnitude 6.7
- 51% that an earthquake measuring magnitude 7
- 20% that an earthquake measuring magnitude 7.5
will occur in the San Francisco region.
Learn More: Uniform California Earthquake Rupture Forecast 3
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Title: The 150th Anniversary of the Damaging 1868 Hayward Earthquake: Why It Matters and How We Can Prepare for Its Repeat
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The Gold Rush and the 1906 Earthquake: How they combined to create the breakthrough discovery of modern seismic science
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![A map of ShakeOut scenario shaking in southern California](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Map_ShakeOut_soCal.png?itok=lYD5NtC_)
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Full view of the ground with the San Andreas fault running through the middle of the image. A 30 foot steam offset from the 1857 earthquake can be seen near the right edge of the image.
Full view of the ground with the San Andreas fault running through the middle of the image. A 30 foot steam offset from the 1857 earthquake can be seen near the right edge of the image.
Closeup shot of the same area above. The cross-cutting feature is a road cut going through the fault.
Closeup shot of the same area above. The cross-cutting feature is a road cut going through the fault.
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Related Content
What is a seismic zone, or seismic hazard zone?
Although you may hear the terms “seismic zone” and “seismic hazard zone” used interchangeably, they really describe two slightly different things. A seismic zone is used to describe an area where earthquakes tend to focus; for example, the New Madrid Seismic Zone in the Central United States. A seismic hazard zone describes an area with a particular level of hazard due to earthquakes. Typically, a...
What is seismic hazard? What is a seismic hazard map? How are they made? How are they used? Why are there different maps, and which one should I use?
Seismic hazard is the hazard associated with potential earthquakes in a particular area, and a seismic hazard map shows the relative hazards in different areas. The maps are made by considering what we currently know about: Past faults and earthquakes The behavior of seismic waves as they travel through different parts of the U.S. crust The near-surface site conditions at specific locations of...
What are the earthquake hazards/risks where I live?
Determining your risk with regard to earthquakes, or more precisely shaking from earthquakes, isn't as simple as finding the nearest fault. The chances of experiencing shaking from an earthquake and/or having property damage is dependent on many different factors. The National Hazard Maps use all available data to estimate the chances of shaking (of different strengths and frequencies) across the...
How will my house hold up in an earthquake? Can the USGS send someone out to evaluate my property?
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Ground shaking is the primary cause of earthquake damage to man-made structures. Many factors influence the strength of earthquake shaking at a site including the earthquake's magnitude, the site's proximity to the fault, the local geology, and the soil type. More than 250 structures throughout the United States have been outfitted with seismic sensors by the USGS National Strong Motion Project...
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Can the National Seismic Hazard Maps be used as an earthquake forecast tool for the near future?
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How do I get earthquake hazard maps for locations outside of the U.S.?
The USGS has seismic hazard maps for the US, Alaska, Hawaii, Puerto Rico & U.S. Virgin Islands, Guam & Marianas and Samoa & Pacific Islands . In addition, we have created some other Foreign Hazard Maps for Afghanistan, Haiti, South America, Southeast Asia and the State of Gujarat, India . For more information about hazard maps for other locations outside of the U.S. visit the GEM (Global...
How are engineers working to make roads and buildings safer?
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Title: The 150th Anniversary of the Damaging 1868 Hayward Earthquake: Why It Matters and How We Can Prepare for Its Repeat
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![PubTalk 1/2018 — ShakeAlert: Path to West Coast EQ Early Warning](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/video/youtube-C6uPiZuJiCU.jpg?itok=GC2e7Pm1)
Title: ShakeAlert: The Path to West Coast Earthquake Early Warning ... how a few seconds can save lives and property
Title: ShakeAlert: The Path to West Coast Earthquake Early Warning ... how a few seconds can save lives and property
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Title: Underwater Secrets of the Hayward Fault Zone: Integrated 3D imaging to understand earthquake hazards
Title: Underwater Secrets of the Hayward Fault Zone: Integrated 3D imaging to understand earthquake hazards
The Gold Rush and the 1906 Earthquake: How they combined to create the breakthrough discovery of modern seismic science
The Gold Rush and the 1906 Earthquake: How they combined to create the breakthrough discovery of modern seismic science
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by Morgan Page, USGS Research Geophysicist
by Morgan Page, USGS Research Geophysicist
![A map of ShakeOut scenario shaking in southern California](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Map_ShakeOut_soCal.png?itok=lYD5NtC_)
A map of ShakeOut scenario shaking in southern California.
A map of ShakeOut scenario shaking in southern California.
A 99 percent chance of a magnitude-7 earthquake? That's the 30-year outlook for California, according to a new USGS State-wide earthquake forecast. Learn more in this interview with USGS geophysicist Tom Parsons.
A 99 percent chance of a magnitude-7 earthquake? That's the 30-year outlook for California, according to a new USGS State-wide earthquake forecast. Learn more in this interview with USGS geophysicist Tom Parsons.
Full view of the ground with the San Andreas fault running through the middle of the image. A 30 foot steam offset from the 1857 earthquake can be seen near the right edge of the image.
Full view of the ground with the San Andreas fault running through the middle of the image. A 30 foot steam offset from the 1857 earthquake can be seen near the right edge of the image.
Closeup shot of the same area above. The cross-cutting feature is a road cut going through the fault.
Closeup shot of the same area above. The cross-cutting feature is a road cut going through the fault.