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That’s Deep: M5.5 April 8 Earthquake felt across Alaska

April 08, 2021

At 9:10am on April 8, Alaskans from the Kenai Peninsula to Fairbanks had a little shakeup to start their day when a magnitude 5.5 earthquake hit.

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2020 Seismicity Year in Review

February 10, 2021

The largest and third largest earthquakes worldwide in 2020 were both in Alaska: the M7.8 Simeonof Earthquake and its M7.6 aftershock.

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Why Should You Bother with a 'Did You Feel It' Report?

November 16, 2020

When people report to the Earthquake Center that they have felt an earthquake on social media, we encourage them to submit a Did You Feel It?

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New multidisciplinary project will boost understanding of earthquakes and Arctic change in Alaska

November 11, 2020

A new collaborative project will make it possible for scientists to use real-time seismic, weather, and infrasound (sounds below levels that humans can hear) observations to track a suite of phenomena ranging from earthquakes to wildfires to sea i

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What is a landslide tsunami again?

November 03, 2020

Tsunamis caused by submarine (below water) and subaerial (above the water) landslides are a serious hazard in bays and fjords of coastal Alaska, particularly in Southeast and South-central Alaska.

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Alaska Earthquake Center’s seismic network covers new ground

October 30, 2020

During 2019-2020, the Alaska Earthquake Center underwent an unprecedented expansion of our permanent seismic monitoring network. We were able to achieve it by acquiring 96 of 158 temporary USArray sites in Alaska.

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The unusual M7.6 aftershock of the M7.8 Simeonof earthquake

October 23, 2020

On October 19, 2020 a magnitude 7.6 earthquake shook the ground in the vicinity of the July 22, 2020 M7.8 Simeonof earthquake aftershock region (Figure 1).

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Earthquake Energy release and the M7.8 Simeonof Earthquake

September 03, 2020

On July 22, 2020, a major M7.8 earthquake struck the Shumagin Islands region of the Aleutians, just south of Simeonof Island.

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Staff Spotlight: Evan McArthur

September 02, 2020

Running a statewide seismic network requires expertise you might not immediately associate with earthquake research.

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M7.8 Simeonof Earthquake Recorded Globally

August 05, 2020

Large earthquakes, like the recent M7.8 in Alaska, can be seen at seismometers around the world! When an earthquake occurs, seismic energy travels in all directions, much like ripples in a pond.

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