QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

38 km N of Sand Point, Alaska

· 124 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aleutians East Borough 101 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 1.7 (ml)
Depth
124 km below the surface
Felt
no reports yet
Nearest
Aleutians East Borough, 101 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1819 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 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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 55.6816, -160.5991. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Aleutians East Borough, AK 101 km (63 mi) ENE of here earthquakes near Aleutians East Borough

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

Aftershocks so far

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

  1. 2.3 41 km NNW of Sand Point, Alaska
  2. 2.6 21 km NNW of Sand Point, Alaska
  3. 2.4 5 km ESE of Sand Point, Alaska
  4. 2.8 37 km NE of Sand Point, Alaska
  5. 2.5 49 km E of Nelson Lagoon, Alaska
  6. 1.9 36 km NNE of Sand Point, Alaska
  7. 2.1 23 km SSE of Nelson Lagoon, Alaska
  8. 2.1 22 km NE of Sand Point, Alaska
  9. 1.9 5 km S of Sand Point, Alaska
  10. 2.5 44 km ESE of Nelson Lagoon, Alaska
  11. 3.8 38 km E of Nelson Lagoon, Alaska
  12. 2.7 36 km SSE of Nelson Lagoon, Alaska
  13. 3.3 19 km ENE of Sand Point, Alaska
  14. 3.1 19 km E of Sand Point, Alaska
  15. 2.9 11 km WSW of Sand Point, 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.