QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Ester, AK

No earthquake was likely felt in Ester in the 24 hours to 11:48 am AKST (20:48 UTC). The last one was M 1.7, 6 km (4 mi) SSW, at 9:07 pm AKST on 9 November 2026, estimated intensity II (weak) in town. Every earthquake near Ester

This page: a magnitude 2.4 earthquake was recorded 29 km (18 mi) west of Ester, AK, at 2:58 am AKDT on 18 September 2022 (10:58 UTC), 16 km deep. 1 person has reported feeling it to USGS.

USGS: 29 km W of Ester, Alaska

2:58 am AKDT, Sep 18, 2022 · · 16 km deep · released about 120 lb of TNT

10 km30 km60 km120 km N Fairbanks North Star Borough 103 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
2:58 am AKDT on 18 September 2022 ()
Where
29 km (18 mi) west of Ester, AK · earthquakes near Ester
Magnitude
M 2.4 (ml)
Depth
16 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Fairbanks North Star Borough, 103 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1448 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 14 km (9 mi) from the epicentre. In Ester, 29 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 7 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.0 36 km E of Minto, Alaska · 35 km N of this epicentre
  2. 5.7 15 km SSW of Badger, Alaska · 50 km ESE of this epicentre
  3. 5.5 3 km ESE of Farmers Loop, Alaska · 47 km E of this epicentre
  4. 5.3 6 km NW of Farmers Loop, Alaska · 41 km ENE of this epicentre
  5. 5.2 14 km E of Minto, Alaska · 38 km NNW 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 64.8593, -148.6320. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Fairbanks North Star Borough, AK 103 km (64 mi) E earthquakes near Fairbanks North Star Borough

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

Aftershocks so far

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

  1. 1.7 29 km SE of Minto, Alaska
  2. 2.7 29 km SE of Minto, Alaska
  3. 2.1 32 km E of Minto, Alaska
  4. 1.6 26 km NNE of Four Mile Road, Alaska
  5. 1.6 27 km N of Four Mile Road, Alaska
  6. 1.6 22 km N of Four Mile Road, Alaska
  7. 1.5 25 km N of Four Mile Road, Alaska
  8. 1.6 26 km N of Four Mile Road, Alaska
  9. 2.1 31 km ESE of Minto, Alaska
  10. 2.3 34 km E of Minto, Alaska
  11. 1.5 31 km W of Ester, Alaska
  12. 2.3 29 km WNW of Ester, Alaska
  13. 1.6 18 km NNE of Four Mile Road, Alaska
  14. 1.5 22 km NNE of Four Mile Road, Alaska
  15. 1.6 9 km N 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.