QuakeIndex

ice quake · automatic estimate, may change

M 2.1ml

129 km W of Yakutat, Alaska

· 21 km deep · released about 43 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yakutat City and Borough 91 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 2.1 (ml)
Depth
21 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Yakutat City and Borough, 91 km ENE
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 1888 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

USGS catalogues this as ice quake, not an earthquake.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 59.7643, -141.9775. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yakutat City and Borough, AK 91 km (57 mi) WSW 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

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

  1. 1.7 115 km WNW of Yakutat, Alaska
  2. 1.7 113 km WNW of Yakutat, Alaska
  3. 1.7 148 km WNW of Yakutat, Alaska
  4. 1.7 116 km WNW of Yakutat, Alaska
  5. 2.6 118 km WNW of Yakutat, Alaska
  6. 1.7 121 km WNW of Yakutat, Alaska
  7. 1.6 126 km WNW of Yakutat, Alaska
  8. 1.5 122 km WNW of Yakutat, Alaska
  9. 1.7 Southeastern Alaska
  10. 1.5 111 km WNW of Yakutat, Alaska
  11. 1.9 123 km WNW of Yakutat, Alaska
  12. 1.8 121 km WNW of Yakutat, Alaska
  13. 1.8 114 km WNW of Yakutat, Alaska
  14. 1.6 101 km WNW of Yakutat, Alaska
  15. 1.7 115 km WNW 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 4.8 on 2019-03-11 — it released about 11,000 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.