QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Southern Alaska

· 6.3 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yakutat City and Borough 116 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 1.7 (ml)
Depth
6.3 km below the surface
Felt
no reports yet
Nearest
Yakutat City and Borough, 116 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2158 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 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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 60.9851, -141.1882. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yakutat City and Borough, AK 116 km (72 mi) NNW 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

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

  1. 2.6 129 km SE of McCarthy, Alaska
  2. 2.1 133 km SE of McCarthy, Alaska
  3. 2.2 130 km SE of McCarthy, Alaska
  4. 1.6 Southern Alaska
  5. 1.5 125 km SE of McCarthy, Alaska
  6. 1.6 99 km E of McCarthy, Alaska
  7. 1.6 96 km E of McCarthy, Alaska
  8. 1.5 98 km ESE of McCarthy, Alaska
  9. 1.7 119 km SE of McCarthy, Alaska
  10. 1.5 135 km ESE of McCarthy, Alaska
  11. 1.5 122 km E of McCarthy, Alaska
  12. 1.7 121 km E of McCarthy, Alaska
  13. 2.0 120 km E of McCarthy, Alaska
  14. 1.5 122 km E of McCarthy, Alaska
  15. 1.6 121 km E of McCarthy, 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.