QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

47 km N of Rampart, Alaska

· 17 km deep · released about 60 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yukon-Koyukuk Census Area 85 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 2.2 (ml)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Yukon-Koyukuk Census Area, 85 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1756 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 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 65.9275, -150.3036. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yukon-Koyukuk Census Area, AK 85 km (53 mi) NE of here earthquakes near Yukon-Koyukuk Census Area

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

  1. 1.5 36 km NNE of Rampart, Alaska
  2. 1.5 14 km ENE of Rampart, Alaska
  3. 1.6 14 km ENE of Rampart, Alaska
  4. 1.7 49 km WNW of Stevens Village, Alaska
  5. 1.6 14 km ENE of Rampart, Alaska
  6. 2.1 45 km NW of Stevens Village, Alaska
  7. 1.8 46 km NW of Stevens Village, Alaska
  8. 2.5 68 km NNW of Rampart, Alaska
  9. 2.4 42 km WNW of Stevens Village, Alaska
  10. 1.7 46 km WNW of Stevens Village, Alaska
  11. 1.5 14 km ENE of Rampart, Alaska
  12. 1.5 43 km W of Stevens Village, Alaska
  13. 1.5 53 km WNW of Stevens Village, Alaska
  14. 2.0 39 km WSW of Stevens Village, Alaska
  15. 1.6 42 km N of Rampart, 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.