QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

110 km WSW of Covenant Life, Alaska

· 7.9 km deep · released about 7.6 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 1.6 (ml)
Depth
7.9 km below the surface
Felt
no reports yet
Nearest
Hoonah-Angoon Census Area, 123 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2518 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 58.9594, -137.7333. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hoonah-Angoon Census Area, AK 123 km (77 mi) WNW 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. 2.5 117 km SE of Yakutat, Alaska
  2. 2.9 98 km NW of Elfin Cove, Alaska
  3. 1.8 British Columbia, Canada
  4. 1.6 108 km ESE of Yakutat, Alaska
  5. 1.6 113 km ESE of Yakutat, Alaska
  6. 1.9 100 km WSW of Covenant Life, Alaska
  7. 1.5 82.6 km ENE of Mosquito Lake, AK
  8. 1.5 117.5 km WNW of Yakutat, AK
  9. 3.5 92 km NW of Elfin Cove, Alaska
  10. 2.0 75 km NW of Elfin Cove, Alaska
  11. 2.0 71 km NW of Elfin Cove, Alaska
  12. 1.5 81 km SW of Covenant Life, Alaska
  13. 1.6 109 km ESE of Yakutat, Alaska
  14. 1.7 101 km WNW of Elfin Cove, Alaska
  15. 1.7 77 km NW of Elfin Cove, 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.