QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

152 km ESE of McCarthy, Alaska

· 3.9 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yakutat City and Borough 113 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 1.6 (ml)
Depth
3.9 km below the surface
Felt
no reports yet
Nearest
Yakutat City and Borough, 113 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 877 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 61.0288, -140.1995. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yakutat City and Borough, AK 113 km (70 mi) N 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

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

  1. 1.5 147 km NNW of Yakutat, Alaska
  2. 1.5 121 km ESE of McCarthy, Alaska
  3. 1.9 157 km ESE of McCarthy, Alaska
  4. 1.7 122 km ESE of McCarthy, Alaska
  5. 1.6 149 km N of Yakutat, Alaska
  6. 1.7 121 km ESE of McCarthy, Alaska
  7. 2.9 154 km ESE of McCarthy, Alaska
  8. 2.5 159 km ESE of McCarthy, Alaska
  9. 1.6 152 km ESE of McCarthy, Alaska
  10. 3.0 141 km E of McCarthy, Alaska
  11. 1.5 150 km ESE of McCarthy, Alaska
  12. 2.6 151 km ESE of McCarthy, Alaska
  13. 1.9 156 km ESE of McCarthy, Alaska
  14. 2.9 157 km ESE of McCarthy, Alaska
  15. 1.6 161 km ESE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2023-08-06 — it released about 63,000 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.