QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

116 km SSE of McCarthy, Alaska

· 11 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 94 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
11 km below the surface
Felt
no reports yet
Nearest
Yakutat City and Borough, 94 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1173 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 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 60.5706, -141.7143. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yakutat City and Borough, AK 94 km (59 mi) NW 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

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

  1. 1.5 134 km NW of Yakutat, Alaska
  2. 1.6 125 km NW of Yakutat, Alaska
  3. 1.6 117 km SE of McCarthy, Alaska
  4. 1.6 110 km NW of Yakutat, Alaska
  5. 2.0 126 km SSE of McCarthy, Alaska
  6. 1.5 113 km NW of Yakutat, Alaska
  7. 1.5 112 km SE of McCarthy, Alaska
  8. 1.9 118 km NW of Yakutat, Alaska
  9. 2.0 130 km SSE of McCarthy, Alaska
  10. 1.8 116 km NW of Yakutat, Alaska
  11. 2.9 115 km NW of Yakutat, Alaska
  12. 1.5 116 km NW of Yakutat, Alaska
  13. 2.2 117 km NW of Yakutat, Alaska
  14. 1.8 117 km NW of Yakutat, Alaska
  15. 1.7 115 km NW 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 5.0 on 2022-09-29 — it released about 45,000 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.