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#           M7.1 November 30, 2018 Anchorage Earthquake      

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      By Alaska Science Center      November 5, 2019    

            -              Overview           
            -              Science           
            -              Multimedia           
            -              Publications           
            -              News           

A magnitude 7.1 earthquake struck north of Anchorage, Alaska, on November 30, 2018, at 8:29 a.m. local time (17:29:28 UTC). 

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

View Media Details

### Did You Feel It?

Map of shaking intensity based on 15,000+ reports from citizens who experienced the earthquake.

### USGS Event page

Tectonic summary, maps and data.  The USGS event page has the most up-to-date information, and for estimates of casualties and damage, visit the USGS Prompt Assessment of Global Earthquakes for Response (PAGER) website.

### Shakemap

Map showing ground motion and shaking intensity based on instrumental measurements of shaking along with information about local geology and the earthquake’s location and magnitude.

###  

### Anchorage Office Building Shaking Visualizations

These videos presents a visualization of how the Frontier Building, Atwood Building and BP Building in Anchorage, Alaska, shook during the moment magnitude (Mw) 7.1 November 30, 2018, Anchorage, Alaska, earthquake. The buildings were instrumented by U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking. Such data are useful in making decisions about improving the performance of this and similar buildings.

Credit for each video: Mehmet Çelebi, USGS (Public domain.)

                                          - Download Video

View Media Details

the Frontier Building visualizing shaking during the Mw 7.1 January 24, 2016, Iniskin, Alaska

                                          - Download Video

View Media Details

Atwood building visualizing shaking during the Mw7.1 January 24, 2016, Iniskin, Alaska, earthquake

                                          - Download Video

View Media Details

 

### In the News

                                - 12/05/19: KTVA: Lessons Learned - various segments
                                - 12/03/19:  Inside Anchorage’s big 2018 earthquake, a ‘Snickers bar’ of shifting layers
                                - 12/01/19:  As the Earth Breaks
                                - 11/29/19:  How a few seconds of shifting deep below the Earth’s surface caused the biggest earthquake in Anchorage since 1964
                                - 11/25/19:  Frontiers 191: Web Extra: The November 30 Alaska Earthquake   
                                - 11/25/19:  Frontiers 191: Magnitude 7.1 - Pieces of the Puzzle
                                - 11/01/19:  Findings from the bottom of Eklutna Lake: USGS scientists reflect on months of earthquake research
                                - 10/22/19:  Deep Landslides Not Reactivated by 2018 Anchorage Quake
                                - 04/26/19:  Reconnaissance After Anchorage Quake Finds Signs of Ground Failure
                                - 02/17/19:  Geologists researching Eklutna Lake sediment for earthquake evidence
                                - 12/11/18: Alaska Frontiers 162: A Tale of Two Earthquakes
                                - 12/04/18:  USGS scientist: It could have been worse
                                - 11/30/18: USGS News Release

### Symposium and Talks

                                - 11/20/19:    Fireside Chat:  Did You Feel It?
                                - 09/24-26/19: One Year Later: Symposium on the 2018 M7.1 Anchorage Earthquake                                   - Thirty USGS scientists from around the country, including the Alaska Region and the Alaska Science Center, participated in the National Earthquake Hazards Reduction Program Alaska Earthquake Workshop, held in Anchorage, AK. This symposium, focused on the 2018 M7.1 Anchorage Earthquake and its consequences, and highlighted the research that has already occurred in the past year and will stimulate new investigations and collaborations to make the most of this learning opportunity.  

### Study Area

### Contacts

#### Yvette Gillies

##### Communications and Outreach

Alaska Science Center

ygillies@usgs.gov

907-786-7039

#### Rob Witter, Ph.D.

##### Research Geologist

Alaska Science Center

rwitter@usgs.gov

907-786-7404

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

##### Research Geologist

Alaska Science Center

pheuslr@usgs.gov

907-786-7447

### Explore Search

                      - Earthquakes
                      - Natural Hazards
                      - anchorage
                      - Earthquake
                      - m7.1

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

Below are multimedia items associated with this project.

2018 Anchorage, AK

September 23, 2021

#### 2018 Anchorage, AK

link

Natural Hazards, Earthquake Hazards, Alaska

September 23, 2021

#### 2018 Anchorage, AK

link

#### 2018 Anchorage, AK

link

Natural Hazards, Earthquake Hazards, Alaska

Evidence of turbidity currents in Eklutna Lake

February 16, 2019

#### Evidence of turbidity currents in Eklutna Lake

link

USGS scientists, working with researchers from the University of Ghent, probed the floor of Eklutna Lake, Anchorage Borough, Alaska, for evidence of turbidity currents triggered by strong shaking during the 2018 Mw7.1 Anchorage earthquake.

Alaska Science Center

February 16, 2019

#### Evidence of turbidity currents in Eklutna Lake

link

#### Evidence of turbidity currents in Eklutna Lake

link

USGS scientists, working with researchers from the University of Ghent, probed the floor of Eklutna Lake, Anchorage Borough, Alaska, for evidence of turbidity currents triggered by strong shaking during the 2018 Mw7.1 Anchorage earthquake.

Alaska Science Center

USGS scientist investigates cracks along Trunk Road in Wasilla, AK

December 17, 2018

#### USGS scientist investigates cracks along Trunk Road in Wasilla, AK

link

A USGS scientist investigates cracks along Trunk Road in Wasilla, Alaska. Extensional crack and damage to roadway along S Trunk Rd.

Alaska Science Center, Earthquake Science Center

December 17, 2018

#### USGS scientist investigates cracks along Trunk Road in Wasilla, AK

link

#### USGS scientist investigates cracks along Trunk Road in Wasilla, AK

link

A USGS scientist investigates cracks along Trunk Road in Wasilla, Alaska. Extensional crack and damage to roadway along S Trunk Rd.

Alaska Science Center, Earthquake Science Center

A USGS geologist stands in a crack in tide flat sediment, Alaska

December 17, 2018

#### A USGS geologist stands in a crack in tide flat sediment, Alaska

link

A USGS scientist stands in a crack in tide flat sediment that opened during strong shaking in the November 30, 2018 Anchorage earthquake. This upland ground crack near Cottonwood Creek, Palmer Slough had horizontal displacements of ~2.5ft locally and observed maximum depth of ~3ft. The crack was observed ~150ft from the active river channel.

Alaska Science Center

December 17, 2018

#### A USGS geologist stands in a crack in tide flat sediment, Alaska

link

#### A USGS geologist stands in a crack in tide flat sediment, Alaska

link

A USGS scientist stands in a crack in tide flat sediment that opened during strong shaking in the November 30, 2018 Anchorage earthquake. This upland ground crack near Cottonwood Creek, Palmer Slough had horizontal displacements of ~2.5ft locally and observed maximum depth of ~3ft. The crack was observed ~150ft from the active river channel.

Alaska Science Center

Measuring a crack in sandy sediment along the Knik River, Alaska

December 8, 2018

#### Measuring a crack in sandy sediment along the Knik River, Alaska

link

Exposed sand within a extensional crack along the Knik River, Alaska. Measuring a crack in sandy sediment along the south bank of the Knik River. This crack was one of many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

December 8, 2018

#### Measuring a crack in sandy sediment along the Knik River, Alaska

link

#### Measuring a crack in sandy sediment along the Knik River, Alaska

link

Exposed sand within a extensional crack along the Knik River, Alaska. Measuring a crack in sandy sediment along the south bank of the Knik River. This crack was one of many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

2018 Potter Hill landslide 2, Anchorage, AK

December 7, 2018

#### 2018 Potter Hill landslide 2, Anchorage, AK

link

Landslide from bluff below rail grade north of Rabbit Creek. Main scarp of slump/flow slide at Potter Hill. Railroad grade is to the left, tidal flat to the right. Note ponded drainage and disrupted slide material.

2018 Anchorage Earthquake

Alaska Science Center

December 7, 2018

#### 2018 Potter Hill landslide 2, Anchorage, AK

link

#### 2018 Potter Hill landslide 2, Anchorage, AK

link

Landslide from bluff below rail grade north of Rabbit Creek. Main scarp of slump/flow slide at Potter Hill. Railroad grade is to the left, tidal flat to the right. Note ponded drainage and disrupted slide material.

2018 Anchorage Earthquake

Alaska Science Center

Close up of cracks at the north end of the Port of Anchorage, Alaska

December 6, 2018

#### Close up of cracks at the north end of the Port of Anchorage, Alaska

link

Lateral spread cracks at northern end of Port of Anchorage. These cracks were among many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska, Alaska Science Center

December 6, 2018

#### Close up of cracks at the north end of the Port of Anchorage, Alaska

link

#### Close up of cracks at the north end of the Port of Anchorage, Alaska

link

Lateral spread cracks at northern end of Port of Anchorage. These cracks were among many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska, Alaska Science Center

Cracks at the north end of the Port of Anchorage, Alaska

December 6, 2018

#### Cracks at the north end of the Port of Anchorage, Alaska

link

Lateral spread cracks at the north end of the Port of Anchorage, Alaska. These cracks were among many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska, Alaska Science Center

December 6, 2018

#### Cracks at the north end of the Port of Anchorage, Alaska

link

#### Cracks at the north end of the Port of Anchorage, Alaska

link

Lateral spread cracks at the north end of the Port of Anchorage, Alaska. These cracks were among many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska, Alaska Science Center

Chugiak extensional cracks, Chugiak, AK

December 5, 2018

#### Chugiak extensional cracks, Chugiak, AK

link

Extensional cracking and settling around private residence in Chugiak.

2018 Anchorage Earthquake

Alaska Science Center

December 5, 2018

#### Chugiak extensional cracks, Chugiak, AK

link

#### Chugiak extensional cracks, Chugiak, AK

link

Extensional cracking and settling around private residence in Chugiak.

2018 Anchorage Earthquake

Alaska Science Center

Ground crack at Sunset Park, Anchorage, AK

December 4, 2018

#### Ground crack at Sunset Park, Anchorage, AK

link

Crack observed in 2018 along headscarp of 1964 Government Hill landslide.

2018 Anchorage Earthquake

Alaska Science Center

December 4, 2018

#### Ground crack at Sunset Park, Anchorage, AK

link

#### Ground crack at Sunset Park, Anchorage, AK

link

Crack observed in 2018 along headscarp of 1964 Government Hill landslide.

2018 Anchorage Earthquake

Alaska Science Center

Eagle River landslides, Eagle River, AK

December 1, 2018

#### Eagle River landslides, Eagle River, AK

link

Superficial slides along Eagle River east of Eagle River Loop Road. 

2018 Anchorage Earthquake

Alaska Science Center

December 1, 2018

#### Eagle River landslides, Eagle River, AK

link

#### Eagle River landslides, Eagle River, AK

link

Superficial slides along Eagle River east of Eagle River Loop Road. 

2018 Anchorage Earthquake

Alaska Science Center

2018 Potter Hill landslide 1, Anchorage, AK

December 1, 2018

#### 2018 Potter Hill landslide 1, Anchorage, AK

link

Slumping along the Alaska Railroad right-of-way evolved into long-runout landslides. The same area failed in earthquakes in 1954 and 1964.

2018 Anchorage Earthquake

Alaska Science Center

December 1, 2018

#### 2018 Potter Hill landslide 1, Anchorage, AK

link

#### 2018 Potter Hill landslide 1, Anchorage, AK

link

Slumping along the Alaska Railroad right-of-way evolved into long-runout landslides. The same area failed in earthquakes in 1954 and 1964.

2018 Anchorage Earthquake

Alaska Science Center

USGS scientists in helicopter conduct an aerial inspection

December 1, 2018

#### USGS scientists in helicopter conduct an aerial inspection

link

USGS scientists conduct an aerial inspection of a line of sand vents along the Cook Inlet tide flat at Earthquake Park in Anchorage. Cook Inlet coastal plain liquefaction and bluff raveling near Earthquake Park. These vents opened and ejected sand due to liquefaction triggered by strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

December 1, 2018

#### USGS scientists in helicopter conduct an aerial inspection

link

#### USGS scientists in helicopter conduct an aerial inspection

link

USGS scientists conduct an aerial inspection of a line of sand vents along the Cook Inlet tide flat at Earthquake Park in Anchorage. Cook Inlet coastal plain liquefaction and bluff raveling near Earthquake Park. These vents opened and ejected sand due to liquefaction triggered by strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

Eklutna Dam after 2018 Anchorage earthquake

December 1, 2018

#### Eklutna Dam after 2018 Anchorage earthquake

link

Eklutna Lake dam appeared to be undamaged the day after the earthquake; overflights of the lake showed no landslides impacted the lake shoreline.

Alaska Science Center

December 1, 2018

#### Eklutna Dam after 2018 Anchorage earthquake

link

#### Eklutna Dam after 2018 Anchorage earthquake

link

Eklutna Lake dam appeared to be undamaged the day after the earthquake; overflights of the lake showed no landslides impacted the lake shoreline.

Alaska Science Center

Earthquake damage of Minnesota Drive onramp, Anchorage, Alaska 

December 1, 2018

#### Earthquake damage of Minnesota Drive onramp, Anchorage, Alaska 

link

Minnesota Blvd off-ramp failure under repair. Construction crews rebuild the Minnesota Drive onramp in Anchorage on December 1, 2018. Engineered fill beneath the onramp failed the day before as a result of strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

December 1, 2018

#### Earthquake damage of Minnesota Drive onramp, Anchorage, Alaska 

link

#### Earthquake damage of Minnesota Drive onramp, Anchorage, Alaska 

link

Minnesota Blvd off-ramp failure under repair. Construction crews rebuild the Minnesota Drive onramp in Anchorage on December 1, 2018. Engineered fill beneath the onramp failed the day before as a result of strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

Shaking of Atwood Building, Mw 7.0 November 30, 2018, Anchorage quake

November 30, 2018

#### Shaking of Atwood Building, Mw 7.0 November 30, 2018, Anchorage quake

link

This video presents a visualization of how the Atwood Building in Anchorage, Alaska, shook during the Mw 7.0 November 30, 2018, Anchorage, Alaska, earthquake. The building was instrumented by the U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking.

Natural Hazards, Earthquake Hazards

November 30, 2018

#### Shaking of Atwood Building, Mw 7.0 November 30, 2018, Anchorage quake

link

#### Shaking of Atwood Building, Mw 7.0 November 30, 2018, Anchorage quake

link

This video presents a visualization of how the Atwood Building in Anchorage, Alaska, shook during the Mw 7.0 November 30, 2018, Anchorage, Alaska, earthquake. The building was instrumented by the U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking.

Natural Hazards, Earthquake Hazards

Shaking of Frontier Building, M7.0 November 30, 2018, Anchorage Quake

November 30, 2018

#### Shaking of Frontier Building, M7.0 November 30, 2018, Anchorage Quake

link

This video presents a visualization of how the Frontier Building in Anchorage, Alaska, shook during the moment magnitude (Mw) 7.0 November 30, 2018, Anchorage, Alaska, earthquake. The building was instrumented by U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking.

Natural Hazards Mission Area, Earthquake Hazards Program

November 30, 2018

#### Shaking of Frontier Building, M7.0 November 30, 2018, Anchorage Quake

link

#### Shaking of Frontier Building, M7.0 November 30, 2018, Anchorage Quake

link

This video presents a visualization of how the Frontier Building in Anchorage, Alaska, shook during the moment magnitude (Mw) 7.0 November 30, 2018, Anchorage, Alaska, earthquake. The building was instrumented by U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking.

Natural Hazards Mission Area, Earthquake Hazards Program

Below are publications associated with this project.

May 13, 2020

####                 Ground failure triggered by shaking during the November 30, 2018, magnitude 7.1 Anchorage, Alaska, earthquake              

Natural Hazards Mission Area, Earthquake Hazards Program, Alaska Science Center, Earthquake Science Center, Supplemental Appropriations for Disaster Recovery Activities

October 23, 2019

####                 Ground failure from the Anchorage, Alaska, earthquake of 30 November 2018              

Natural Hazards Mission Area, Earthquake Hazards Program, Alaska Science Center, Earthquake Science Center, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

October 16, 2019

####                 The 30 November 2018 Mw7.1 Anchorage Earthquake              

Natural Hazards Mission Area, Earthquake Hazards Program, Alaska Science Center, Subduction Zone Science

link

November 30, 2018

####                 2018 Anchorage Earthquake              

A magnitude 7.0 earthquake struck north of Anchorage, Alaska, on November 30, 2018, at 8:29 a.m. local time (17:29:28 UTC).  For the most up-to-date information, please visit the USGS event page, and for estimates of casualties and damage, visit the USGS Prompt Assessment of Global Earthquakes for Response (PAGER) website.

Natural Hazards Mission Area, Earthquake Hazards Program, Alaska Science Center, Geologic Hazards Science Center, Communications and Publishing

A magnitude 7.1 earthquake struck north of Anchorage, Alaska, on November 30, 2018, at 8:29 a.m. local time (17:29:28 UTC). 

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

View Media Details

### Did You Feel It?

Map of shaking intensity based on 15,000+ reports from citizens who experienced the earthquake.

### USGS Event page

Tectonic summary, maps and data.  The USGS event page has the most up-to-date information, and for estimates of casualties and damage, visit the USGS Prompt Assessment of Global Earthquakes for Response (PAGER) website.

### Shakemap

Map showing ground motion and shaking intensity based on instrumental measurements of shaking along with information about local geology and the earthquake’s location and magnitude.

###  

### Anchorage Office Building Shaking Visualizations

These videos presents a visualization of how the Frontier Building, Atwood Building and BP Building in Anchorage, Alaska, shook during the moment magnitude (Mw) 7.1 November 30, 2018, Anchorage, Alaska, earthquake. The buildings were instrumented by U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking. Such data are useful in making decisions about improving the performance of this and similar buildings.

Credit for each video: Mehmet Çelebi, USGS (Public domain.)

                                          - Download Video

View Media Details

the Frontier Building visualizing shaking during the Mw 7.1 January 24, 2016, Iniskin, Alaska

                                          - Download Video

View Media Details

Atwood building visualizing shaking during the Mw7.1 January 24, 2016, Iniskin, Alaska, earthquake

                                          - Download Video

View Media Details

 

### In the News

                                - 12/05/19: KTVA: Lessons Learned - various segments
                                - 12/03/19:  Inside Anchorage’s big 2018 earthquake, a ‘Snickers bar’ of shifting layers
                                - 12/01/19:  As the Earth Breaks
                                - 11/29/19:  How a few seconds of shifting deep below the Earth’s surface caused the biggest earthquake in Anchorage since 1964
                                - 11/25/19:  Frontiers 191: Web Extra: The November 30 Alaska Earthquake   
                                - 11/25/19:  Frontiers 191: Magnitude 7.1 - Pieces of the Puzzle
                                - 11/01/19:  Findings from the bottom of Eklutna Lake: USGS scientists reflect on months of earthquake research
                                - 10/22/19:  Deep Landslides Not Reactivated by 2018 Anchorage Quake
                                - 04/26/19:  Reconnaissance After Anchorage Quake Finds Signs of Ground Failure
                                - 02/17/19:  Geologists researching Eklutna Lake sediment for earthquake evidence
                                - 12/11/18: Alaska Frontiers 162: A Tale of Two Earthquakes
                                - 12/04/18:  USGS scientist: It could have been worse
                                - 11/30/18: USGS News Release

### Symposium and Talks

                                - 11/20/19:    Fireside Chat:  Did You Feel It?
                                - 09/24-26/19: One Year Later: Symposium on the 2018 M7.1 Anchorage Earthquake                                   - Thirty USGS scientists from around the country, including the Alaska Region and the Alaska Science Center, participated in the National Earthquake Hazards Reduction Program Alaska Earthquake Workshop, held in Anchorage, AK. This symposium, focused on the 2018 M7.1 Anchorage Earthquake and its consequences, and highlighted the research that has already occurred in the past year and will stimulate new investigations and collaborations to make the most of this learning opportunity.  

### Study Area

### Contacts

#### Yvette Gillies

##### Communications and Outreach

Alaska Science Center

ygillies@usgs.gov

907-786-7039

#### Rob Witter, Ph.D.

##### Research Geologist

Alaska Science Center

rwitter@usgs.gov

907-786-7404

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

##### Research Geologist

Alaska Science Center

pheuslr@usgs.gov

907-786-7447

### Explore Search

                      - Earthquakes
                      - Natural Hazards
                      - anchorage
                      - Earthquake
                      - m7.1

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

Below are multimedia items associated with this project.

2018 Anchorage, AK

September 23, 2021

#### 2018 Anchorage, AK

link

Natural Hazards, Earthquake Hazards, Alaska

September 23, 2021

#### 2018 Anchorage, AK

link

#### 2018 Anchorage, AK

link

Natural Hazards, Earthquake Hazards, Alaska

Evidence of turbidity currents in Eklutna Lake

February 16, 2019

#### Evidence of turbidity currents in Eklutna Lake

link

USGS scientists, working with researchers from the University of Ghent, probed the floor of Eklutna Lake, Anchorage Borough, Alaska, for evidence of turbidity currents triggered by strong shaking during the 2018 Mw7.1 Anchorage earthquake.

Alaska Science Center

February 16, 2019

#### Evidence of turbidity currents in Eklutna Lake

link

#### Evidence of turbidity currents in Eklutna Lake

link

USGS scientists, working with researchers from the University of Ghent, probed the floor of Eklutna Lake, Anchorage Borough, Alaska, for evidence of turbidity currents triggered by strong shaking during the 2018 Mw7.1 Anchorage earthquake.

Alaska Science Center

USGS scientist investigates cracks along Trunk Road in Wasilla, AK

December 17, 2018

#### USGS scientist investigates cracks along Trunk Road in Wasilla, AK

link

A USGS scientist investigates cracks along Trunk Road in Wasilla, Alaska. Extensional crack and damage to roadway along S Trunk Rd.

Alaska Science Center, Earthquake Science Center

December 17, 2018

#### USGS scientist investigates cracks along Trunk Road in Wasilla, AK

link

#### USGS scientist investigates cracks along Trunk Road in Wasilla, AK

link

A USGS scientist investigates cracks along Trunk Road in Wasilla, Alaska. Extensional crack and damage to roadway along S Trunk Rd.

Alaska Science Center, Earthquake Science Center

A USGS geologist stands in a crack in tide flat sediment, Alaska

December 17, 2018

#### A USGS geologist stands in a crack in tide flat sediment, Alaska

link

A USGS scientist stands in a crack in tide flat sediment that opened during strong shaking in the November 30, 2018 Anchorage earthquake. This upland ground crack near Cottonwood Creek, Palmer Slough had horizontal displacements of ~2.5ft locally and observed maximum depth of ~3ft. The crack was observed ~150ft from the active river channel.

Alaska Science Center

December 17, 2018

#### A USGS geologist stands in a crack in tide flat sediment, Alaska

link

#### A USGS geologist stands in a crack in tide flat sediment, Alaska

link

A USGS scientist stands in a crack in tide flat sediment that opened during strong shaking in the November 30, 2018 Anchorage earthquake. This upland ground crack near Cottonwood Creek, Palmer Slough had horizontal displacements of ~2.5ft locally and observed maximum depth of ~3ft. The crack was observed ~150ft from the active river channel.

Alaska Science Center

Measuring a crack in sandy sediment along the Knik River, Alaska

December 8, 2018

#### Measuring a crack in sandy sediment along the Knik River, Alaska

link

Exposed sand within a extensional crack along the Knik River, Alaska. Measuring a crack in sandy sediment along the south bank of the Knik River. This crack was one of many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

December 8, 2018

#### Measuring a crack in sandy sediment along the Knik River, Alaska

link

#### Measuring a crack in sandy sediment along the Knik River, Alaska

link

Exposed sand within a extensional crack along the Knik River, Alaska. Measuring a crack in sandy sediment along the south bank of the Knik River. This crack was one of many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

2018 Potter Hill landslide 2, Anchorage, AK

December 7, 2018

#### 2018 Potter Hill landslide 2, Anchorage, AK

link

Landslide from bluff below rail grade north of Rabbit Creek. Main scarp of slump/flow slide at Potter Hill. Railroad grade is to the left, tidal flat to the right. Note ponded drainage and disrupted slide material.

2018 Anchorage Earthquake

Alaska Science Center

December 7, 2018

#### 2018 Potter Hill landslide 2, Anchorage, AK

link

#### 2018 Potter Hill landslide 2, Anchorage, AK

link

Landslide from bluff below rail grade north of Rabbit Creek. Main scarp of slump/flow slide at Potter Hill. Railroad grade is to the left, tidal flat to the right. Note ponded drainage and disrupted slide material.

2018 Anchorage Earthquake

Alaska Science Center

Close up of cracks at the north end of the Port of Anchorage, Alaska

December 6, 2018

#### Close up of cracks at the north end of the Port of Anchorage, Alaska

link

Lateral spread cracks at northern end of Port of Anchorage. These cracks were among many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska, Alaska Science Center

December 6, 2018

#### Close up of cracks at the north end of the Port of Anchorage, Alaska

link

#### Close up of cracks at the north end of the Port of Anchorage, Alaska

link

Lateral spread cracks at northern end of Port of Anchorage. These cracks were among many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska, Alaska Science Center

Cracks at the north end of the Port of Anchorage, Alaska

December 6, 2018

#### Cracks at the north end of the Port of Anchorage, Alaska

link

Lateral spread cracks at the north end of the Port of Anchorage, Alaska. These cracks were among many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska, Alaska Science Center

December 6, 2018

#### Cracks at the north end of the Port of Anchorage, Alaska

link

#### Cracks at the north end of the Port of Anchorage, Alaska

link

Lateral spread cracks at the north end of the Port of Anchorage, Alaska. These cracks were among many that opened across the Anchorage and Mat-Su region due to strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska, Alaska Science Center

Chugiak extensional cracks, Chugiak, AK

December 5, 2018

#### Chugiak extensional cracks, Chugiak, AK

link

Extensional cracking and settling around private residence in Chugiak.

2018 Anchorage Earthquake

Alaska Science Center

December 5, 2018

#### Chugiak extensional cracks, Chugiak, AK

link

#### Chugiak extensional cracks, Chugiak, AK

link

Extensional cracking and settling around private residence in Chugiak.

2018 Anchorage Earthquake

Alaska Science Center

Ground crack at Sunset Park, Anchorage, AK

December 4, 2018

#### Ground crack at Sunset Park, Anchorage, AK

link

Crack observed in 2018 along headscarp of 1964 Government Hill landslide.

2018 Anchorage Earthquake

Alaska Science Center

December 4, 2018

#### Ground crack at Sunset Park, Anchorage, AK

link

#### Ground crack at Sunset Park, Anchorage, AK

link

Crack observed in 2018 along headscarp of 1964 Government Hill landslide.

2018 Anchorage Earthquake

Alaska Science Center

Eagle River landslides, Eagle River, AK

December 1, 2018

#### Eagle River landslides, Eagle River, AK

link

Superficial slides along Eagle River east of Eagle River Loop Road. 

2018 Anchorage Earthquake

Alaska Science Center

December 1, 2018

#### Eagle River landslides, Eagle River, AK

link

#### Eagle River landslides, Eagle River, AK

link

Superficial slides along Eagle River east of Eagle River Loop Road. 

2018 Anchorage Earthquake

Alaska Science Center

2018 Potter Hill landslide 1, Anchorage, AK

December 1, 2018

#### 2018 Potter Hill landslide 1, Anchorage, AK

link

Slumping along the Alaska Railroad right-of-way evolved into long-runout landslides. The same area failed in earthquakes in 1954 and 1964.

2018 Anchorage Earthquake

Alaska Science Center

December 1, 2018

#### 2018 Potter Hill landslide 1, Anchorage, AK

link

#### 2018 Potter Hill landslide 1, Anchorage, AK

link

Slumping along the Alaska Railroad right-of-way evolved into long-runout landslides. The same area failed in earthquakes in 1954 and 1964.

2018 Anchorage Earthquake

Alaska Science Center

USGS scientists in helicopter conduct an aerial inspection

December 1, 2018

#### USGS scientists in helicopter conduct an aerial inspection

link

USGS scientists conduct an aerial inspection of a line of sand vents along the Cook Inlet tide flat at Earthquake Park in Anchorage. Cook Inlet coastal plain liquefaction and bluff raveling near Earthquake Park. These vents opened and ejected sand due to liquefaction triggered by strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

December 1, 2018

#### USGS scientists in helicopter conduct an aerial inspection

link

#### USGS scientists in helicopter conduct an aerial inspection

link

USGS scientists conduct an aerial inspection of a line of sand vents along the Cook Inlet tide flat at Earthquake Park in Anchorage. Cook Inlet coastal plain liquefaction and bluff raveling near Earthquake Park. These vents opened and ejected sand due to liquefaction triggered by strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

Eklutna Dam after 2018 Anchorage earthquake

December 1, 2018

#### Eklutna Dam after 2018 Anchorage earthquake

link

Eklutna Lake dam appeared to be undamaged the day after the earthquake; overflights of the lake showed no landslides impacted the lake shoreline.

Alaska Science Center

December 1, 2018

#### Eklutna Dam after 2018 Anchorage earthquake

link

#### Eklutna Dam after 2018 Anchorage earthquake

link

Eklutna Lake dam appeared to be undamaged the day after the earthquake; overflights of the lake showed no landslides impacted the lake shoreline.

Alaska Science Center

Earthquake damage of Minnesota Drive onramp, Anchorage, Alaska 

December 1, 2018

#### Earthquake damage of Minnesota Drive onramp, Anchorage, Alaska 

link

Minnesota Blvd off-ramp failure under repair. Construction crews rebuild the Minnesota Drive onramp in Anchorage on December 1, 2018. Engineered fill beneath the onramp failed the day before as a result of strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

December 1, 2018

#### Earthquake damage of Minnesota Drive onramp, Anchorage, Alaska 

link

#### Earthquake damage of Minnesota Drive onramp, Anchorage, Alaska 

link

Minnesota Blvd off-ramp failure under repair. Construction crews rebuild the Minnesota Drive onramp in Anchorage on December 1, 2018. Engineered fill beneath the onramp failed the day before as a result of strong shaking during the M7.1 November 30, 2018 Anchorage earthquake.

Alaska Science Center

Shaking of Atwood Building, Mw 7.0 November 30, 2018, Anchorage quake

November 30, 2018

#### Shaking of Atwood Building, Mw 7.0 November 30, 2018, Anchorage quake

link

This video presents a visualization of how the Atwood Building in Anchorage, Alaska, shook during the Mw 7.0 November 30, 2018, Anchorage, Alaska, earthquake. The building was instrumented by the U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking.

Natural Hazards, Earthquake Hazards

November 30, 2018

#### Shaking of Atwood Building, Mw 7.0 November 30, 2018, Anchorage quake

link

#### Shaking of Atwood Building, Mw 7.0 November 30, 2018, Anchorage quake

link

This video presents a visualization of how the Atwood Building in Anchorage, Alaska, shook during the Mw 7.0 November 30, 2018, Anchorage, Alaska, earthquake. The building was instrumented by the U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking.

Natural Hazards, Earthquake Hazards

Shaking of Frontier Building, M7.0 November 30, 2018, Anchorage Quake

November 30, 2018

#### Shaking of Frontier Building, M7.0 November 30, 2018, Anchorage Quake

link

This video presents a visualization of how the Frontier Building in Anchorage, Alaska, shook during the moment magnitude (Mw) 7.0 November 30, 2018, Anchorage, Alaska, earthquake. The building was instrumented by U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking.

Natural Hazards Mission Area, Earthquake Hazards Program

November 30, 2018

#### Shaking of Frontier Building, M7.0 November 30, 2018, Anchorage Quake

link

#### Shaking of Frontier Building, M7.0 November 30, 2018, Anchorage Quake

link

This video presents a visualization of how the Frontier Building in Anchorage, Alaska, shook during the moment magnitude (Mw) 7.0 November 30, 2018, Anchorage, Alaska, earthquake. The building was instrumented by U.S. Geological Survey to obtain data to study its behavior and performance during strong shaking.

Natural Hazards Mission Area, Earthquake Hazards Program

Below are publications associated with this project.

May 13, 2020

####                 Ground failure triggered by shaking during the November 30, 2018, magnitude 7.1 Anchorage, Alaska, earthquake              

Natural Hazards Mission Area, Earthquake Hazards Program, Alaska Science Center, Earthquake Science Center, Supplemental Appropriations for Disaster Recovery Activities

October 23, 2019

####                 Ground failure from the Anchorage, Alaska, earthquake of 30 November 2018              

Natural Hazards Mission Area, Earthquake Hazards Program, Alaska Science Center, Earthquake Science Center, Geologic Hazards Science Center, Supplemental Appropriations for Disaster Recovery Activities

October 16, 2019

####                 The 30 November 2018 Mw7.1 Anchorage Earthquake              

Natural Hazards Mission Area, Earthquake Hazards Program, Alaska Science Center, Subduction Zone Science

link

November 30, 2018

####                 2018 Anchorage Earthquake              

A magnitude 7.0 earthquake struck north of Anchorage, Alaska, on November 30, 2018, at 8:29 a.m. local time (17:29:28 UTC).  For the most up-to-date information, please visit the USGS event page, and for estimates of casualties and damage, visit the USGS Prompt Assessment of Global Earthquakes for Response (PAGER) website.

Natural Hazards Mission Area, Earthquake Hazards Program, Alaska Science Center, Geologic Hazards Science Center, Communications and Publishing