QuakeIndex

Earthquake · automatic estimate, may change

M 2.4ml

2 km W of South Van Horn, Alaska

· 14 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fairbanks North Star Borough 66 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
Magnitude
M 2.4 (ml)
Depth
14 km below the surface
Felt
5 reports · strongest reported intensity III
Nearest
Fairbanks North Star Borough, 66 km ESE
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 282 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 5 people have reported feeling it to USGS.

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.

Where

Epicentre 64.8134, -147.8371. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fairbanks North Star Borough, AK 66 km (41 mi) WNW of here earthquakes near Fairbanks North Star Borough

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

Aftershocks so far

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

  1. 1.5 11 km E of Fox, Alaska
  2. 1.5 7 km ENE of Fox, Alaska
  3. 1.6 9 km E of Fox, Alaska
  4. 2.6 10 km WNW of Ester, Alaska
  5. 1.5 12 km ENE of Fox, Alaska
  6. 1.6 9 km ENE of Fox, Alaska
  7. 2.2 7 km S of Badger, Alaska
  8. 1.5 11 km ENE of Fox, Alaska
  9. 2.0 18 km WSW of Ester, Alaska
  10. 1.9 36 km WSW of Salcha, Alaska
  11. 1.5 10 km SE of Fox, Alaska
  12. 2.7 9 km SE of Fox, Alaska
  13. 1.5 36 km S of South Van Horn, Alaska
  14. 2.3 48 km SSW of South Van Horn, Alaska
  15. 1.7 23 km SW of Ester, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2022-12-07 — it released about 1,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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