QuakeIndex

Earthquake · reviewed by a seismologist

M 3.4ml

14 km SE of Manley Hot Springs, Alaska

· 16 km deep · released about 1.9 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yukon-Koyukuk Census Area 75 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 3.4 (ml)
Depth
16 km below the surface
Felt
2 reports · strongest reported intensity II
Measured shaking
intensity III (ShakeMap)
Nearest
Yukon-Koyukuk Census Area, 75 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 127 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.9 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 89,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 2,800× the energy of this one
  4. This earthquake M 3.4 about 1.9 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 4× more

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 64.9220, -150.3850. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yukon-Koyukuk Census Area, AK 75 km (47 mi) SE 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

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

  1. 1.7 36 km S of Manley Hot Springs, Alaska
  2. 1.5 30 km ENE of Manley Hot Springs, Alaska
  3. 1.6 20 km SSE of Rampart, Alaska
  4. 1.7 23 km S of Rampart, Alaska
  5. 1.5 30 km S of Rampart, Alaska
  6. 1.6 17 km SE of Manley Hot Springs, Alaska
  7. 1.5 58 km S of Manley Hot Springs, Alaska
  8. 2.3 41 km W of Four Mile Road, Alaska
  9. 1.7 23 km SSW of Manley Hot Springs, Alaska
  10. 2.4 24 km SSW of Manley Hot Springs, Alaska
  11. 2.4 25 km SSW of Manley Hot Springs, Alaska
  12. 1.9 37 km W of Four Mile Road, Alaska
  13. 1.5 34 km W of Four Mile Road, Alaska
  14. 1.6 39 km WSW of Four Mile Road, Alaska
  15. 1.5 18 km NNE of Manley Hot Springs, 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 4.7 on 2018-08-28 — it released about 89 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.