QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

11 km NNE of Brevig Mission, Alaska

· 4.9 km deep · released about 21 lb of TNT

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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
4.9 km below the surface
Felt
no reports yet
Nearest
Nome Census Area, 124 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1154 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 65.4207, -166.3649. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Nome Census Area, AK 124 km (77 mi) NW of here earthquakes near Nome Census Area

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

Aftershocks so far

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

  1. 4.0 8 km SE of Port Clarence, Alaska
  2. 1.8 48 km SSW of Shishmaref, Alaska
  3. 2.4 29 km NW of Brevig Mission, Alaska
  4. 1.9 12 km ENE of Teller, Alaska
  5. 2.3 30 km NNW of Brevig Mission, Alaska
  6. 1.7 37 km NNE of Brevig Mission, Alaska
  7. 2.3 28 km SSW of Teller, Alaska
  8. 2.3 50 km NNE of Brevig Mission, Alaska
  9. 2.0 51 km N of Brevig Mission, Alaska
  10. 2.1 7 km S of Port Clarence, Alaska
  11. 2.5 9 km NNE of Port Clarence, Alaska
  12. 2.0 29 km NNW of Brevig Mission, Alaska
  13. 1.5 49 km NNE of Brevig Mission, Alaska
  14. 2.2 21 km NE of Brevig Mission, Alaska
  15. 2.3 22 km NE of Brevig Mission, 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 2016-07-09 — it released about 22,000 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.