QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

53 km E of McKinley Park, Alaska

· 80 km deep · released about 5.4 lb of TNT

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10 km30 km60 km120 km N Denali Borough 108 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
80 km below the surface
Felt
no reports yet
Nearest
Denali Borough, 108 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1143 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 63.7609, -147.8398. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Denali Borough, AK 108 km (67 mi) E of here earthquakes near Denali Borough
Fairbanks North Star Borough, AK 120 km (75 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

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

  1. 2.5 59 km E of Cantwell, Alaska
  2. 1.5 66 km E of Cantwell, Alaska
  3. 1.6 56 km SW of Harding-Birch Lakes, Alaska
  4. 3.6 36 km ESE of McKinley Park, Alaska
  5. 1.9 82 km ESE of McKinley Park, Alaska
  6. 1.5 61 km E of Cantwell, Alaska
  7. 1.8 42 km ENE of Healy, Alaska
  8. 1.9 52 km ENE of Cantwell, Alaska
  9. 1.8 67 km ENE of Cantwell, Alaska
  10. 2.6 53 km ENE of Cantwell, Alaska
  11. 1.9 44 km ENE of Healy, Alaska
  12. 1.9 75 km ESE of McKinley Park, Alaska
  13. 2.1 58 km E of Cantwell, Alaska
  14. 2.0 68 km ESE of McKinley Park, Alaska
  15. 1.8 71 km ESE of McKinley 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.

On USGS

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