QuakeIndex

ice quake · automatic estimate, may change

M 1.9ml

124 km ESE of McCarthy, Alaska

· 19 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yakutat City and Borough 105 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 1.9 (ml)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Yakutat City and Borough, 105 km SSE
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 2652 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

USGS catalogues this as ice quake, not an earthquake.

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 60.9360, -140.8577. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yakutat City and Borough, AK 105 km (65 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

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

  1. 1.7 140 km NNW of Yakutat, Alaska
  2. 1.8 139 km ESE of McCarthy, Alaska
  3. 1.8 139 km ESE of McCarthy, Alaska
  4. 1.6 138 km ESE of McCarthy, Alaska
  5. 2.5 Southern Yukon Territory, Canada
  6. 1.9 119 km NNW of Yakutat, Alaska
  7. 1.5 134 km SE of McCarthy, Alaska
  8. 1.5 145 km NNW of Yakutat, Alaska
  9. 1.5 118 km E of McCarthy, Alaska
  10. 2.9 128 km E of McCarthy, Alaska
  11. 2.8 Southern Yukon Territory, Canada
  12. 1.6 147 km NNW of Yakutat, Alaska
  13. 1.7 136 km SE of McCarthy, Alaska
  14. 2.0 134 km NNW of Yakutat, Alaska
  15. 1.5 133 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.

On USGS

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