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#           Alaska Seismic Hazard Map      

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      By Alaska Science Center      April 19, 2024    

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The National Seismic Hazard Maps developed by the USGS show the spatial probability of peak earthquake-driven ground motion levels. Since the last revisions to the map for Alaska in 2007, scientists have made significant advances in understanding active faulting, fault slip rates, and fault behavior.

**​​​Return to Geology >> Hazards >> Alaska Earthquake and Tsunami Hazards**

We are working to update the National Seismic Hazard Map for Alaska with the past decade of new science in response to requests from the state’s engineering and geotechnical communities. Production of the maps involves 1) developing a seismic hazard source model, 2) specifying a ground motion model, and 3) calculating the probabilities. For this task, Alaska-based personnel focus on the development of the seismic hazard source model. We are working to incorporate all updates to the Quaternary fault and fold database previously published by the Alaska Department of Geological and Geophysical Surveys, and expand the existing database with detailed information about fault geometry and slip rate, especially for offshore structures.

View Media Details

### Study Area

### Contacts

#### Peter J Haeussler, Ph.D.

##### Research Geologist

Alaska Science Center

pheuslr@usgs.gov

907-786-7447

#### Rob Witter, Ph.D.

##### Research Geologist

Alaska Science Center

rwitter@usgs.gov

907-786-7404

#### Adrian M Bender

##### Geologist

Alaska Science Center

abender@usgs.gov

907-786-7421

### Explore Search

                      - Earthquakes
                      - Tsunamis
                      - Geology
                      - Natural Hazards
                      - seismic

View All **

Below are other science projects associated with this project.

link

February 1, 2019

####                 Alaska Earthquake and Tsunami Hazards              

Earthquake Hazards Program, Alaska Science Center, Subduction Zone Science

link

February 1, 2019

####   Alaska Earthquake and Tsunami Hazards

Learn More

link

October 9, 2018

####                 Alaska-Aleutian Subduction Zone Studies              

Alaska Science Center

link

October 9, 2018

####   Alaska-Aleutian Subduction Zone Studies

Learn More

link

October 9, 2018

####                 Characterizing the Active Queen Charlotte-Fairweather Fault System              

Alaska Science Center

link

October 9, 2018

####   Characterizing the Active Queen Charlotte-Fairweather Fault System

Learn More

Below are multimedia items associated with this project.

December 29, 2023

####                 The 2023 US 50-State National Seismic Hazard Model: Overview and implications              

Earthquake Hazards Program, Supplemental Appropriations for Disaster Recovery Activities

 

The National Seismic Hazard Maps developed by the USGS show the spatial probability of peak earthquake-driven ground motion levels. Since the last revisions to the map for Alaska in 2007, scientists have made significant advances in understanding active faulting, fault slip rates, and fault behavior.

**​​​Return to Geology >> Hazards >> Alaska Earthquake and Tsunami Hazards**

We are working to update the National Seismic Hazard Map for Alaska with the past decade of new science in response to requests from the state’s engineering and geotechnical communities. Production of the maps involves 1) developing a seismic hazard source model, 2) specifying a ground motion model, and 3) calculating the probabilities. For this task, Alaska-based personnel focus on the development of the seismic hazard source model. We are working to incorporate all updates to the Quaternary fault and fold database previously published by the Alaska Department of Geological and Geophysical Surveys, and expand the existing database with detailed information about fault geometry and slip rate, especially for offshore structures.

View Media Details

### Study Area

### Contacts

#### Peter J Haeussler, Ph.D.

##### Research Geologist

Alaska Science Center

pheuslr@usgs.gov

907-786-7447

#### Rob Witter, Ph.D.

##### Research Geologist

Alaska Science Center

rwitter@usgs.gov

907-786-7404

#### Adrian M Bender

##### Geologist

Alaska Science Center

abender@usgs.gov

907-786-7421

### Explore Search

                      - Earthquakes
                      - Tsunamis
                      - Geology
                      - Natural Hazards
                      - seismic

View All **

Below are other science projects associated with this project.

link

February 1, 2019

####                 Alaska Earthquake and Tsunami Hazards              

Earthquake Hazards Program, Alaska Science Center, Subduction Zone Science

link

February 1, 2019

####   Alaska Earthquake and Tsunami Hazards

Learn More

link

October 9, 2018

####                 Alaska-Aleutian Subduction Zone Studies              

Alaska Science Center

link

October 9, 2018

####   Alaska-Aleutian Subduction Zone Studies

Learn More

link

October 9, 2018

####                 Characterizing the Active Queen Charlotte-Fairweather Fault System              

Alaska Science Center

link

October 9, 2018

####   Characterizing the Active Queen Charlotte-Fairweather Fault System

Learn More

Below are multimedia items associated with this project.

December 29, 2023

####                 The 2023 US 50-State National Seismic Hazard Model: Overview and implications              

Earthquake Hazards Program, Supplemental Appropriations for Disaster Recovery Activities