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M2.2 earthquake 148 km NNW of Meadow Lakes, Alaska, United States

A magnitude 2.2 earthquake struck 148 km NNW of Meadow Lakes, Alaska, United States at 08:58 local time (16:58 UTC) on 22 Sept 2026, at a depth of 87 km, according to USGS. The solution is preliminary and may be revised.

Data: USGS · updated 2026-09-22 17:02 UTC · automatic solution

Magnitude
2.2micro
local magnitude (Richter) (ml)
Depth
87.2 km
Status
Automatic
Origin time
2026-09-22 16:58:31 UTC
Local: 22 Sept 2026, 08:58:31 (America/Anchorage)
Epicentre
62.815° N, 150.851° W

Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
Meadow LakesAlaska, United States · pop. 7,570148 kmINot felt
AnchorageAlaska, United States · pop. 289,600184 kmINot felt

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses USGS · AK.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · AKheadlineAlaska Earthquake Center via U.S. Geological Survey2.2 ml87.2 km62.81° N, 150.85° W–Automatic

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How big was it?

Usually not felt. Recorded by nearby seismometers; thousands occur worldwide every day.

It released roughly the energy of 30 kg of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 87 km this was a intermediate-depth earthquake, which spreads shaking over a wider area but less intensely.

M2.2 releases about 32× the energy of M1.2, and its waves are about 10× taller on a seismogram. Energy: 30 kg of TNT vs 951 g of TNT.

Each square is the energy of one M1.2. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

4 later earthquakes within 30 km; the largest was M2.5 2 days ago. 1 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.2

4 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
13.971.923
39.962.389
89.812.5116
142.352.0124
  1. 2.5Petersville, Alaska09-26 10:47
  2. 2.3140 km NNW of Meadow Lakes, Alaska, United States09-24 08:56
  3. 2.0Petersville, Alaska09-28 15:19
  4. 1.9135 km NNW of Meadow Lakes, Alaska, United States09-23 06:57

Did you feel it?

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Reports on SeismoAtlas

No reports yet.

Event id aka2026suxtdp. First recorded here 28 Sept 2026, 17:32:11 UTC. Solutions: USGS · AK (usgs:aka2026suxtdp). Cite as: SeismoAtlas, “M2.2 earthquake 148 km NNW of Meadow Lakes, Alaska, United States”, https://seismoatlas.com/earthquake/aka2026suxtdp-m2-2-earthquake-148-km-nnw-of-meadow-lakes-alaska-united-states, data from USGS.

JSON: /api/v1/events/aka2026suxtdp. SeismoAtlas is not an official warning service.