QuakeIndex

other event · reviewed by a seismologist

M 3.1ml

33 km SE of Minto, Alaska

· 17 km deep · released about 1,300 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fairbanks North Star Borough 118 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 3.1 (ml)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Fairbanks North Star Borough, 118 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 703 days ago

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

USGS catalogues this as other event, not an earthquake.

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.

Where

Epicentre 64.9193, -148.9112. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fairbanks North Star Borough, AK 118 km (73 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

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

  1. 3.0 13 km N of Four Mile Road, Alaska
  2. 1.6 31 km SSE of Minto, Alaska
  3. 1.7 32 km SSE of Minto, Alaska
  4. 1.7 31 km ESE of Minto, Alaska
  5. 1.5 21 km ENE of Minto, Alaska
  6. 1.9 8 km N of Four Mile Road, Alaska
  7. 2.0 35 km NW of Ester, Alaska
  8. 1.9 25 km NE of Four Mile Road, Alaska
  9. 1.9 21 km NE of Minto, Alaska
  10. 1.7 11 km N of Four Mile Road, Alaska
  11. 2.2 27 km SE of Minto, Alaska
  12. 1.5 30 km ESE of Minto, Alaska
  13. 1.7 28 km N of Four Mile Road, Alaska
  14. 2.4 12 km NNE of Four Mile Road, Alaska
  15. 3.7 5 km W 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.5 on 2019-04-11 — it released about 130 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.