QuakeIndex

Earthquake · reviewed by a seismologist

M 5.0mww

64 km WSW of Covenant Life, Alaska

· 9.8 km deep · released about 480 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Haines Borough 80 kmHoonah-Angoon Census Area 100 kmSkagway Municipality 106 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 5.0 (mww)
Depth
9.8 km below the surface
Felt
544 reports · strongest reported intensity IV
Measured shaking
intensity V (ShakeMap)
USGS impact alert
green
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
Haines Borough, 80 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 279 days ago

This was a moderate earthquake. Shaking at this size can damage poorly built structures close to the epicentre. 544 people have reported feeling it to USGS.

How big was it?

This earthquake released about 480 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 6.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16× the energy of this one
  3. Magna, Utah 2020 M 5.7 11× the energy of this one
  4. This earthquake M 5.0 about 480 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 1,000× 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 59.1033, -136.9727. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Haines Borough, AK 80 km (50 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 106 km (66 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

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

  1. 1.7 65 km SW of Covenant Life, Alaska
  2. 1.7 34 km WSW of Covenant Life, Alaska
  3. 2.0 56 km SW of Covenant Life, Alaska
  4. 2.3 26 km WSW of Mosquito Lake, Alaska
  5. 2.3 62 km WSW of Mosquito Lake, Alaska
  6. 2.2 36 km WSW of Mosquito Lake, Alaska
  7. 1.5 69 km SW of Covenant Life, Alaska
  8. 1.8 53 km WSW of Covenant Life, Alaska
  9. 1.7 61 km SW of Covenant Life, Alaska
  10. 1.5 64 km NW of Gustavus, Alaska
  11. 1.6 73 km NNW of Elfin Cove, Alaska
  12. 1.7 65 km WSW of Mosquito Lake, Alaska
  13. 1.7 78 km SW of Covenant Life, Alaska
  14. 2.6 33 km SW of Covenant Life, Alaska
  15. 1.9 43 km W 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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