Earthquake · Alaska

Magnitude 5.6 earthquake near Lake Minchumina, Alaska

USGS reports a magnitude 5.6 earthquake struck 43 km NNW of Lake Minchumina, Alaska, at 3:07 AM AKDT on Thursday, October 15, 2026. The quake was shallow, at a depth of 4.5 km, and USGS did not flag a tsunami threat.

Key facts

Magnitude
5.6 (ml)
Location
43 km NNW of Lake Minchumina, Alaska
Time
3:07 AM AKDT, Thursday, October 15, 2026
Depth
4.5 km
Felt reports
98 people reported shaking to USGS
Estimated shaking
intensity 7 (USGS ShakeMap)
Tsunami
No tsunami flag from USGS
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What to do

If shaking starts, Drop, Cover, and Hold On. USGS and ready.gov advise expecting aftershocks, so stay ready to protect yourself again.

After shaking stops, check for gas leaks and for damage to your home. Stay out of damaged buildings.

To report what you felt or read more details, use the USGS event page for this earthquake.

Context

USGS lists 98 felt reports for this earthquake. Estimated shaking reached intensity 7, and the intensity based on felt reports was 5.5. These are different measures, so the numbers can differ.

Within 100 km of this location, USGS records show 13 earthquakes of magnitude 4 or larger since 2000. Two of those were magnitude 5 or larger. These counts cover only earthquakes in the USGS catalog for that area and period.

History here

USGS records 13 earthquakes of magnitude 4 or more within 100 km of this epicenter since 2000, 2 of them magnitude 5 or more.

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Questions

Was there an earthquake near Lake Minchumina, Alaska?
Yes. USGS reports a magnitude 5.6 earthquake 43 km NNW of Lake Minchumina at 3:07 AM AKDT on Thursday, October 15, 2026.
How deep was the Alaska earthquake?
USGS puts the depth at 4.5 km, which is shallow. Estimated shaking reached intensity 7.
Is there a tsunami threat from the Lake Minchumina earthquake?
No. USGS did not flag a tsunami threat for this earthquake.

Sources

  1. USGS: M 5.6 43 km NNW of Lake Minchumina, Alaska usgs.gov
  2. USGS earthquake catalog (history count) usgs.gov

How this page is made. The Herebeat Hazard Desk builds event pages from official U.S. government data (National Weather Service, USGS, FEMA). The text is written with AI from that data; every number and quote is checked against the official source automatically before publishing, and the page is updated when the agency updates the event. The official source is always the reference. Spotted a mistake? info@herebeat.app. About the Hazard Desk.