91 km SE of Akutan, Alaska

Yes. A magnitude 2.7 earthquake was recorded 91 km SE of Akutan, Alaska, at 1:27 am AKST on 1 December 2025 (10:27 UTC), 10 km deep.

2025-12-01 10:27 UTC · 10 km deep · released about 340 lb of TNT

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Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.

When: 2025-12-01 10:27 UTC
Magnitude: M 2.7 (ml)
Depth: 10 km below the surface
Felt: no reports yet
Status: Reviewed by a seismologist

USGS · last changed by USGS 261 days ago · we first saw it 261 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 23 km (14 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
Magna, Utah 2020 M 5.7 32,000× the energy of this one
Around the size people start to feel M 3.0 2.8× the energy of this one
This earthquake M 2.7 about 340 lb of TNT

Energy from the Gutenberg–Richter relation (log₁₀E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

The largest earthquake within 50 km since 2016 was M 5.2 on 2025-05-23 — about 5,600 times the energy of this one.

Before 2016, the USGS record lists 38 earthquakes of M5 or more within 50 km; the five largest:

6.6 92 km SE of Akutan, Alaska · 4 km SSW of this epicentre Feb 19, 2003
6.5 59 km ESE of Akutan, Alaska · 34 km NW of this epicentre Apr 2, 1922
6.5 83 km SE of Akutan, Alaska · 7 km NW of this epicentre Oct 30, 1946
6.5 81 km ESE of Akutan, Alaska · 14 km NNW of this epicentre Feb 6, 1974
6.4 50 km SE of Akutan, Alaska · 43 km WNW of this epicentre Mar 17, 1957

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Map loads when it scrolls into view

Aftershocks so far

56 earthquakes have been recorded within 50 km since this one.

2.3 136 km SE of Akutan, Alaska 02:49 UTC
2.7 135 km SE of Akutan, Alaska 18:38 UTC
2.4 89 km SSE of Akutan, Alaska 13:17 UTC
2.5 87 km SE of Akutan, Alaska 09:56 UTC
2.3 83 km SE of Akutan, Alaska 13:36 UTC
3.9 132 km SE of Akutan, Alaska 11:42 UTC
2.3 94 km SE of Akutan, Alaska 18:11 UTC
2.4 103 km ESE of Akutan, Alaska 13:13 UTC
2.5 107 km ESE of Akutan, Alaska 04:38 UTC
2.8 133 km SE of Akutan, Alaska 19:48 UTC
2.8 134 km SE of Akutan, Alaska 19:14 UTC
2.4 92 km SE of Akutan, Alaska 18:58 UTC
2.4 89 km SE of Akutan, Alaska 23:29 UTC
2.4 92 km SSE of Akutan, Alaska 10:56 UTC
2.4 86 km SSE of Akutan, Alaska 09:40 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 17:55 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

The official USGS event page — the source of record for every value above
Did you feel it? Report it to USGS — reports go to USGS, not to us
ShakeMap for this event, when USGS has produced one

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.