QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

110 km ESE of Yakutat, Alaska

· 3.3 km deep · released about 1,900 lb of TNT

10 km30 km60 km120 km N
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 3.2 (ml)
Depth
3.3 km below the surface
Felt
no reports yet
Nearest
Hoonah-Angoon Census Area, 145 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1993 days ago

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

How big was it?

This earthquake released about 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× 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 59.1296, -137.9660. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hoonah-Angoon Census Area, AK 145 km (90 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

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

  1. 1.8 114 km WSW of Covenant Life, Alaska
  2. 1.7 112 km WSW of Covenant Life, Alaska
  3. 1.8 101 km NW of Elfin Cove, Alaska
  4. 1.8 100 km NW of Elfin Cove, Alaska
  5. 1.5 102 km NW of Elfin Cove, Alaska
  6. 1.6 110 km WSW of Covenant Life, Alaska
  7. 1.6 82 km WSW of Mosquito Lake, Alaska
  8. 1.6 91 km NW of Elfin Cove, Alaska
  9. 1.9 Southeastern Alaska
  10. 1.9 116 km ESE of Yakutat, Alaska
  11. 1.8 115 km WSW of Covenant Life, Alaska
  12. 1.6 117 km ESE of Yakutat, Alaska
  13. 1.8 Southeastern Alaska
  14. 2.0 103 km NW of Elfin Cove, Alaska
  15. 1.9 102 km E of Yakutat, 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.