QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

69 km SW of Covenant Life, Alaska

· 8.6 km deep · released about 480 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Haines Borough 84 kmHoonah-Angoon Census Area 100 kmSkagway Municipality 111 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 2.8 (ml)
Depth
8.6 km below the surface
Felt
no reports yet
Nearest
Haines Borough, 84 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1137 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 59.0752, -137.0383. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Haines Borough, AK 84 km (52 mi) W of here earthquakes near Haines Borough
Hoonah-Angoon Census Area, AK 100 km (62 mi) NW of here earthquakes near Hoonah-Angoon Census Area
Skagway Municipality, AK 111 km (69 mi) WSW of here earthquakes near Skagway Municipality

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

Aftershocks so far

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

  1. 1.6 94 km NW of Elfin Cove, Alaska
  2. 1.7 95 km NW of Elfin Cove, Alaska
  3. 1.6 93 km NW of Elfin Cove, Alaska
  4. 1.7 89 km NW of Elfin Cove, Alaska
  5. 1.6 40 km SW of Covenant Life, Alaska
  6. 1.5 56 km WSW of Mosquito Lake, Alaska
  7. 1.6 65 km SW of Covenant Life, Alaska
  8. 2.1 69 km WSW of Covenant Life, Alaska
  9. 1.7 67 km SW of Covenant Life, Alaska
  10. 1.6 64 km WSW of Covenant Life, Alaska
  11. 2.0 43 km SW of Covenant Life, Alaska
  12. 3.6 63 km SW of Covenant Life, Alaska
  13. 2.8 64 km WSW of Covenant Life, Alaska
  14. 1.9 70 km SW of Covenant Life, Alaska
  15. 1.6 74 km WSW of Mosquito Lake, 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

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