QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

23 km N of Cold Bay, Alaska

· 110 km deep · released about 60 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aleutians East Borough 51 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 2.2 (ml)
Depth
110 km below the surface
Felt
no reports yet
Nearest
Aleutians East Borough, 51 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1137 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 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 55.3937, -162.7521. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Aleutians East Borough, AK 51 km (31 mi) WNW of here earthquakes near Aleutians East Borough

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

Aftershocks so far

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

  1. 2.0 14 km WSW of Cold Bay, Alaska
  2. 2.2 19 km NW of Cold Bay, Alaska
  3. 1.9 14 km SSW of Cold Bay, Alaska
  4. 1.7 18 km SW of Cold Bay, Alaska
  5. 2.0 12 km NNE of King Cove, Alaska
  6. 2.1 12 km NNW of King Cove, Alaska
  7. 2.2 15 km SSW of Cold Bay, Alaska
  8. 1.6 11 km N of King Cove, Alaska
  9. 3.3 21 km ENE of Cold Bay, Alaska
  10. 1.9 25 km N of King Cove, Alaska
  11. 1.7 20 km S of Cold Bay, Alaska
  12. 1.9 26 km N of King Cove, Alaska
  13. 1.8 22 km WSW of Cold Bay, Alaska
  14. 2.0 36 km NW of Cold Bay, Alaska
  15. 1.8 17 km SSW of Cold Bay, 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.