QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

112 km ESE of Yakutat, Alaska

· 18 km deep · released about 5.4 lb of TNT

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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
18 km below the surface
Felt
no reports yet
Nearest
Hoonah-Angoon Census Area, 143 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2547 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 59.1158, -137.9445. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hoonah-Angoon Census Area, AK 143 km (89 mi) NW of here earthquakes near Hoonah-Angoon Census Area

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

Aftershocks so far

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

  1. 2.8 84 km E of Yakutat, Alaska
  2. 3.2 110 km ESE of Yakutat, Alaska
  3. 2.5 92 km NW of Elfin Cove, Alaska
  4. 1.8 102 km NW of Elfin Cove, Alaska
  5. 2.3 118 km WNW of Elfin Cove, Alaska
  6. 2.1 90 km ESE of Yakutat, Alaska
  7. 1.8 102 km ESE of Yakutat, Alaska
  8. 2.2 108 km NW of Elfin Cove, Alaska
  9. 2.5 117 km SE of Yakutat, Alaska
  10. 2.9 98 km NW of Elfin Cove, Alaska
  11. 1.8 British Columbia, Canada
  12. 1.6 108 km ESE of Yakutat, Alaska
  13. 1.6 113 km ESE of Yakutat, Alaska
  14. 1.9 100 km WSW of Covenant Life, Alaska
  15. 1.5 82.6 km ENE of Mosquito Lake, AK

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.