94 km ESE of Chignik, Alaska

Yes. A magnitude 2.3 earthquake was recorded 94 km ESE of Chignik, Alaska at 22:12 UTC on 2026-02-26, 18 km deep.

2026-02-26 22:12 UTC · 18 km deep · released about 85 lb of TNT

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: 2026-02-26 22:12 UTC
Magnitude: M 2.3 (ml)
Depth: 18 km below the surface
Felt: no reports yet
Status: Reviewed by a seismologist

USGS · last changed by USGS 253 days ago · we first saw it 253 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 8 km (5 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 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
Magna, Utah 2020 M 5.7 130,000× the energy of this one
Around the size people start to feel M 3.0 11× the energy of this one
This earthquake M 2.3 about 85 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 6.9 on 2021-10-11 — about 7,900,000 times the energy of this one.

Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:

7.0 113 km ESE of Chignik, Alaska · 24 km SSE of this epicentre May 4, 1923
6.9 143 km ESE of Chignik, Alaska · 49 km ESE of this epicentre Feb 13, 1951
6.6 128 km SE of Chignik, Alaska · 48 km SSE of this epicentre Jul 28, 1934
6.4 77 km ESE of Chignik, Alaska · 18 km NW of this epicentre Mar 24, 1972
6.3 112 km E of Chignik, Alaska · 28 km NE of this epicentre Feb 25, 1953

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.

4.0 119 km E of Chignik, Alaska 14:32 UTC
2.0 90 km E of Chignik, Alaska 00:36 UTC
2.6 115 km E of Chignik, Alaska 15:25 UTC
2.8 118 km E of Chignik, Alaska 21:38 UTC
2.2 89 km E of Chignik, Alaska 08:13 UTC
2.2 114 km E of Chignik, Alaska 00:13 UTC
2.2 67 km E of Chignik, Alaska 00:12 UTC
1.9 81 km E of Chignik, Alaska 13:38 UTC
1.6 91 km ESE of Chignik, Alaska 22:31 UTC
1.9 87 km ESE of Chignik, Alaska 04:14 UTC
3.9 84 km ESE of Chignik, Alaska 01:57 UTC
2.1 66 km ESE of Chignik, Alaska 17:59 UTC
3.1 121 km E of Chignik, Alaska 21:19 UTC
2.8 80 km E of Chignik, Alaska 02:59 UTC
2.4 111 km E of Chignik, Alaska 04:32 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 14:58 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.