QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

54 km ENE of Ferry, Alaska

· 97 km deep · released about 1,900 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fairbanks North Star Borough 94 kmDenali Borough 110 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 3.2 (ml)
Depth
97 km below the surface
Felt
no reports yet
Nearest
Fairbanks North Star Borough, 94 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 192 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× 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.

Where

Epicentre 64.1430, -148.0330. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fairbanks North Star Borough, AK 94 km (59 mi) SW of here earthquakes near Fairbanks North Star Borough
Denali Borough, AK 110 km (68 mi) ENE of here earthquakes near Denali Borough

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

Aftershocks so far

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

  1. 1.5 60 km ENE of Ferry, Alaska
  2. 1.7 62 km E of Denali Park, Alaska
  3. 1.5 54 km ENE of Ferry, Alaska
  4. 1.9 37 km E of Clear, Alaska
  5. 1.5 51 km E of Clear, Alaska
  6. 1.9 56 km ENE of Ferry, Alaska
  7. 3.7 60 km SW of Salcha, Alaska
  8. 2.0 21 km E of Healy, Alaska
  9. 2.0 46 km ENE of Healy, Alaska
  10. 1.5 44 km E of Clear, Alaska
  11. 1.8 39 km E of Denali Park, Alaska
  12. 1.5 43 km SSW of South Van Horn, Alaska
  13. 1.5 23 km E of Healy, Alaska
  14. 1.8 51 km SW of Salcha, Alaska
  15. 1.6 21 km ENE of Denali Park, 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 2024-09-26 — it released about 63 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.