QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

Earthquake near Fairbanks, AK

No earthquake was likely felt in Fairbanks in the 24 hours to 1:44 pm AKST (22:44 UTC). The last one was M 5.6, 250 km (155 mi) WSW, at 3:07 am AKDT on 15 October 2026, estimated intensity II (weak) in town; 107 felt reports to USGS. Every earthquake near Fairbanks

This page: a magnitude 3.1 earthquake was recorded 47 km (29 mi) southwest of Fairbanks, AK, at 1:37 am AKDT on 8 September 2026 (09:37 UTC), 6.6 km deep. 17 people have reported feeling it to USGS.

USGS: 27 km E of Nenana, Alaska

1:37 am AKDT, Sep 8, 2026 · · 6.6 km deep · released about 1,300 lb of TNT

10 km30 km60 km120 km N Fairbanks North Star Borough 97 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
1:37 am AKDT on 8 September 2026 ()
Where
47 km (29 mi) southwest of Fairbanks, AK · earthquakes near Fairbanks
Magnitude
M 3.1 (ml)
Depth
6.6 km below the surface
Felt
17 reports · strongest reported intensity III
Nearest
Fairbanks North Star Borough, 97 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 65 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 41 km (25 mi) from the epicentre. In Fairbanks, 47 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.

Likely felt in: Ester 37 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 250,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 11,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,900× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.4× more

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 4.4 on 2022-12-07 — about 89 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.7 15 km SSW of Badger, Alaska · 42 km ENE of this epicentre
  2. 5.5 10 km SSW of Badger, Alaska · 45 km ENE 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 64.5990, -148.5250. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Fairbanks North Star Borough, AK 97 km (60 mi) E earthquakes near Fairbanks North Star Borough
Denali Borough, AK 125 km (78 mi) SW earthquakes near Denali Borough

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

Aftershocks so far

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

  1. 0.6 28 km SSW of Ester, Alaska
  2. 1.3 13 km W of Ester, Alaska
  3. 1.7 6 km SSW of Ester, Alaska
  4. 1.2 21 km E of Anderson, Alaska
  5. 1.4 27 km N of Four Mile Road, Alaska
  6. 1.5 48 km SSW of South Van Horn, Alaska
  7. 1.8 37 km E of Clear, Alaska
  8. 1.4 37 km E of Clear, Alaska
  9. 1.5 37 km E of Clear, Alaska
  10. 1.4 33 km NE of Four Mile Road, Alaska
  11. 1.6 21 km NE of Four Mile Road, Alaska
  12. 1.4 31 km SSE of Minto, Alaska
  13. 1.1 47 km SSW of South Van Horn, Alaska
  14. 1.4 44 km E of Clear, Alaska
  15. 1.0 21 km NNE of Four Mile Road, 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.

On USGS

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