QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

19 km WSW of Womens Bay, Alaska

· 26 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kodiak Island Borough 59 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 2.6 (ml)
Depth
26 km below the surface
Felt
no reports yet
Nearest
Kodiak Island Borough, 59 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 890 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 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 57.5995, -152.9492. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kodiak Island Borough, AK 59 km (37 mi) E of here earthquakes near Kodiak Island 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. 1.9 30 km N of Old Harbor, Alaska
  2. 1.9 19 km WSW of Port Lions, Alaska
  3. 2.9 43 km SSW of Chiniak, Alaska
  4. 1.5 25 km W of Port Lions, Alaska
  5. 1.9 25 km WSW of Port Lions, Alaska
  6. 2.1 23 km NNE of Old Harbor, Alaska
  7. 2.6 29 km NNE of Old Harbor, Alaska
  8. 1.8 36 km ENE of Larsen Bay, Alaska
  9. 3.0 24 km SW of Chiniak, Alaska
  10. 2.0 30 km ENE of Larsen Bay, Alaska
  11. 2.0 22 km W of Port Lions, Alaska
  12. 1.9 22 km WSW of Aleneva, Alaska
  13. 2.6 7 km ENE of Port Lions, Alaska
  14. 1.6 20 km SW of Womens Bay, Alaska
  15. 1.6 35 km N of Old Harbor, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.1 on 2017-11-09 — it released about 180 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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