QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

56 km SW of Harding-Birch Lakes, Alaska

· 10 km deep · released about 5.4 lb of TNT

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10 km30 km60 km120 km N Fairbanks North Star Borough 86 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 1.5 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Fairbanks North Star Borough, 86 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2239 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 63.9945, -147.3672. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fairbanks North Star Borough, AK 86 km (53 mi) SSW 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

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

  1. 2.4 82 km ESE of Denali Park, Alaska
  2. 1.9 65 km WSW of Delta Junction, Alaska
  3. 1.9 84 km SW of Delta Junction, Alaska
  4. 1.8 81 km SW of Delta Junction, Alaska
  5. 1.7 81 km ESE of Denali Park, Alaska
  6. 1.8 61 km ESE of McKinley Park, Alaska
  7. 2.4 54 km SW of Harding-Birch Lakes, Alaska
  8. 1.7 82 km ESE of Denali Park, Alaska
  9. 1.6 71 km ESE of Denali Park, Alaska
  10. 2.8 72 km SW of Delta Junction, Alaska
  11. 1.5 60 km SW of Harding-Birch Lakes, Alaska
  12. 1.6 61 km ESE of McKinley Park, Alaska
  13. 2.2 82 km ESE of McKinley Park, Alaska
  14. 1.5 72 km SSW of Harding-Birch Lakes, Alaska
  15. 1.5 55 km WSW of Salcha, 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.