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M 3.9 - 67 km SE of Cantwell, Alaska

Source: USGS · Alaska

A magnitude 3.9 earthquake was recorded by USGS near 67 km SE of Cantwell. On the USGS Earthquake Hazards Program scale, M3.9 is classified "Minor". Among the 1,838 earthquake reports Areazine has published, this M3.9 event ranks stronger than 44% of them (rank #995 by magnitude).

Read this earthquake report in 30 seconds

Magnitude
M 3.9
USGS class
Minor
Location
67 km SE of Cantwell
Archive rank
#995 of 1,838
Source
USGS
Published
September 28, 2026
MINOR

Out of 1,838 earthquake reports Areazine has logged, this one outranks 44% of them — 994 recorded a higher magnitude.

Record status: a point-in-time USGS detection. Aftershocks, revised magnitude, and felt-report data continue to update on USGS's own event page after publication.

What Happened

A M 3.9 ml earthquake occurred at 22:26:26 UTC on October 26, 2026 (Unix time 1790595986860), located 67 km SE of Cantwell, Alaska.

Location Details

The event was centered at latitude 62.938, longitude -148.078. The depth of 16.6 km classifies it as shallow (less than 20 km).

Impact Assessment

No felt reports were recorded. There was no tsunami advisory (tsunami field = 0) and no alert level was issued.

What You Should Know

Earthquakes of this magnitude are often felt but rarely cause damage. Minor aftershocks remain possible.

Source

https://earthquake.usgs.gov/earthquakes/eventpage/aka2026tfplzt (USGS)

Original source: USGS Official Notice ↗

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Nationwide notices with similar length or severity timing 8

Two Areazine-derived peer sets for this USGS earthquake report: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.

Similar body length

Nearest notices by article body length (643 characters here).

Bushfire Advice Alert for Wingen in Upper Hunter 643 chars Bushfire Advice for South Gundurimba in Lismore Area 643 chars Planned Burn Alert: Bellbird Lane Wedderburn 643 chars Planned Burn Alert for East Shoal Bay, Port Stephens 643 chars

Similar severity timing

Same severity (low) notices issued closest in time to September 28, 2026.

Frost Advisory for Burin Peninsula low Flood Alert for Essex Coast from Clacton to St Peters Flat (Sep 27, 2026) low MVA Alert for M7 (Westlink Mtwy), Oakhurst low Yellow Rainfall Warning for Uranium City - Camsell Portage low

What People Ask

What people usually ask about a notice like this one.

What magnitude was this earthquake? ▾
A magnitude 3.9 ml earthquake struck 67 km southeast of Cantwell, Alaska, at a depth of 16.6 km.
What does an M3.9 "Minor" reading actually indicate? ▾
The USGS classifies M3.9 as "Minor" on its Earthquake Hazards Program scale. Events in this range are often felt near the epicenter and can cause minor damage to vulnerable structures, though widespread damage is uncommon.
Is this earthquake stronger or weaker than others in the archive? ▾
This is the #995 strongest of the 1,838 earthquake reports in Areazine's archive by magnitude, stronger than 44% of them and weaker than 994 others.
Was Cantwell likely to feel this earthquake? ▾
This event was centered 67 km SE of Cantwell. Shaking intensity falls off sharply with distance from the epicenter and depends on depth and local geology, so check the USGS "Did You Feel It?" report for this event for real felt-shaking data rather than assuming from magnitude and distance alone.

Where this data comes from

EPA Outdoor Air Quality Data

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AirNow (EPA / NOAA)

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National Weather Service

Active watches, warnings, and advisories, NOAA

CDC Air Quality & Health

Health-impact reference behind every AQI category