QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9ml

Earthquake near Anchorage, AK

No earthquake was likely felt in Anchorage in the 24 hours to 4:35 pm AKST (01:35 UTC). The last one was M 3.5, 39 km (24 mi) SSW, at 4:48 pm AKDT on 27 October 2026, estimated intensity II (weak) in town; 98 felt reports to USGS. Every earthquake near Anchorage

This page: a magnitude 2.9 earthquake was recorded 45 km (28 mi) west-northwest of Anchorage, AK, at 3:15 pm AKST on 8 November 2026 (00:15 UTC), 57 km deep. 1 person has reported feeling it to USGS.

USGS: 13 km SSW of Susitna, Alaska

45 km (28 mi) WNW of Anchorage, AK

3:15 pm AKST, Nov 8, 2026 · · 57 km deep · released about 680 lb of TNT

10 km30 km60 km120 km N Anchorage Municipality 76 kmMatanuska-Susitna Borough 109 km
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
3:15 pm AKST on 8 November 2026 ()
Where
45 km (28 mi) west-northwest of Anchorage, AK · earthquakes near Anchorage
Magnitude
M 2.9 (ml)
Depth
57 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Anchorage Municipality, 76 km ESE
Nearest mapped fault
Castle Mountain fault, under 1 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 5 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 it was probably too small to be felt, even directly above it. In Anchorage, 45 km away, the estimate is intensity II (weak). 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 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 6.0 on 2025-11-27 — about 45,000 times the energy of this one.

Before 2016, the USGS record lists 24 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.9 27 km SE of Skwentna, Alaska · 47 km NNW of this epicentre
  2. 6.8 Southern Alaska · 47 km SW of this epicentre
  3. 6.8 4 km NE of Beluga, Alaska · 37 km SW of this epicentre
  4. 5.8 17 km NW of Beluga, Alaska · 46 km WSW of this epicentre
  5. 5.8 27 km N of Beluga, Alaska · 23 km WSW of this epicentre

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

Epicentre 61.4360, -150.6070. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Anchorage Municipality, AK 76 km (47 mi) ESE earthquakes near Anchorage Municipality
Matanuska-Susitna Borough, AK 109 km (68 mi) NNE earthquakes near Matanuska-Susitna Borough
Kenai Peninsula Borough, AK 151 km (94 mi) SW earthquakes near Kenai Peninsula Borough

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

  1. 1.8 16 km NNW of Point Possession, Alaska
  2. 1.9 29 km NW of Susitna, Alaska
  3. 2.1 2 km NNW of Susitna, Alaska
  4. 2.0 7 km NW of Point MacKenzie, Alaska
  5. 2.3 28 km NNE of Beluga, Alaska

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

Revisions

USGS refines a solution as more stations report. Every change we have seen is listed here.

What changedFromToWhen
review statusautomaticreviewed
longitude-150.6-150.61
latitude61.4361.44
depth60.957.4
reported intensitynot reported1
felt reportsnot reported1
longitude-150.6-150.6
depth60.660.9
magnitude2.82.9

On USGS

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