QuakeIndex

Earthquake · reviewed by a seismologist

M 5.7mww

111 km N of Yakutat, Alaska

· 5.0 km deep · released about 5.4 kilotons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yakutat City and Borough 61 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 5.7 (mww)
Depth
5.0 km below the surface
Felt
35 reports · strongest reported intensity IV
Measured shaking
intensity VII (ShakeMap)
USGS impact alert
green
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
Yakutat City and Borough, 61 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 134 days ago

This was a moderate earthquake. Shaking at this size can damage poorly built structures close to the epicentre. 35 people have reported feeling it to USGS.

How big was it?

This earthquake released about 5.4 kilotons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 6.7 would have released about 32 times as much.

  1. Loma Prieta, California 1989 M 6.9 63× the energy of this one
  2. Northridge, California 1994 M 6.7 32× the energy of this one
  3. Mineral, Virginia 2011 M 5.8 1.4× the energy of this one
  4. This earthquake M 5.7 about 5.4 kilotons of TNT
  5. Around the size people start to feel M 3.0 this one released 11,000× 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 60.5362, -140.0494. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yakutat City and Borough, AK 61 km (38 mi) NNE of here earthquakes near Yakutat City and Borough

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

Aftershocks so far

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

  1. 1.9 108 km N of Yakutat, Alaska
  2. 2.0 109 km N of Yakutat, Alaska
  3. 2.3 112 km N of Yakutat, Alaska
  4. 2.0 108 km NNW of Yakutat, Alaska
  5. 1.9 110 km N of Yakutat, Alaska
  6. 2.3 110 km N of Yakutat, Alaska
  7. 2.2 112 km N of Yakutat, Alaska
  8. 2.1 104 km N of Yakutat, Alaska
  9. 2.3 111 km N of Yakutat, Alaska
  10. 2.9 108 km NNW of Yakutat, Alaska
  11. 2.5 110 km N of Yakutat, Alaska
  12. 2.0 106 km NNW of Yakutat, Alaska
  13. 2.2 97 km N of Yakutat, Alaska
  14. 2.0 109 km N of Yakutat, Alaska
  15. 2.6 109 km NNW 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.

For this area

The largest earthquake within 50 km in our catalogue was M 7.0 on 2025-12-06 — it released about 89 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.