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M 3.4 - 122 km S of Yakutat, Alaska

Source: USGS · Alaska

A magnitude 3.4 earthquake was recorded by USGS near 122 km S of Yakutat. On the USGS Earthquake Hazards Program scale, M3.4 is classified "Minor". Among the 1,740 earthquake reports Areazine has published, this M3.4 event ranks stronger than 26% of them (rank #1,192 by magnitude).

Read this earthquake report in 30 seconds

Magnitude
M 3.4
USGS class
Minor
Location
122 km S of Yakutat
Archive rank
#1,192 of 1,740
Source
USGS
Published
September 20, 2026
MINOR

Out of 1,740 earthquake reports Areazine has logged, this one outranks 26% of them — 1,191 recorded a higher magnitude.

Record status: USGS's reading at the moment of detection — the agency keeps revising magnitude, aftershock counts, and felt reports on its own event page as more data arrives.

What Happened

A M 3.4 ml earthquake struck 122 km S of Yakutat, Alaska, on 2026-09-20 at 12:39:39 UTC (timestamp 1789928379446). The event had a depth of 5 km.

Location Details

The earthquake was located at latitude 58.46, longitude -139.381. The depth of 5 km is classified 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. Aftershocks are possible following any seismic event.

Source

https://earthquake.usgs.gov/earthquakes/eventpage/aka2026srikrm (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 (675 characters here).

Bushfire Advice Alert for North Turramurra, NSW 675 chars Planned Burn Alert at Cordeaux Dam in Wingecarribee 675 chars Planned Burn Alert in Bago State Forest, Snowy Valleys 675 chars Yellow Fog Advisory in Effect for Eastern Lambton County 675 chars

Similar severity timing

Same severity (low) notices issued closest in time to September 20, 2026.

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What People Ask

Common questions about this USGS earthquake report.

What magnitude was this earthquake? ▾
A magnitude 3.4 ml earthquake occurred 122 km south of Yakutat, Alaska, at a depth of 5 km.
What does an M3.4 "Minor" reading actually indicate? ▾
The USGS classifies M3.4 as "Minor" on its Earthquake Hazards Program scale. Events in this range are rarely felt beyond the immediate epicenter and typically cause no damage; most are recorded only by seismographs.
Where does this event rank against Areazine's other recorded earthquakes? ▾
This is the #1,192 strongest of the 1,740 earthquake reports in Areazine's archive by magnitude, stronger than 26% of them and weaker than 1,191 others.
Was Yakutat likely to feel this earthquake? ▾
This event was centered 122 km S of Yakutat. 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.

Source data

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