QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

79 km WSW of Mosquito Lake, Alaska

· 10 km deep · released about 7.6 lb of TNT

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10 km30 km60 km120 km N Haines Borough 110 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 1.6 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Haines Borough, 110 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1420 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 59.3458, -137.4531. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Haines Borough, AK 110 km (69 mi) WNW of here earthquakes near Haines Borough
Hoonah-Angoon Census Area, AK 138 km (86 mi) NW of here earthquakes near Hoonah-Angoon Census Area

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. 3.3 119 km ESE of Yakutat, Alaska
  2. 1.9 British Columbia, Canada
  3. 3.7 118 km ESE of Yakutat, Alaska
  4. 1.6 77 km W of Mosquito Lake, Alaska
  5. 2.0 82 km SW of Covenant Life, Alaska
  6. 1.6 British Columbia, Canada
  7. 1.7 78 km SW of Covenant Life, Alaska
  8. 2.4 76 km SW of Covenant Life, Alaska
  9. 2.2 67 km WSW of Covenant Life, Alaska
  10. 1.5 85 km W of Mosquito Lake, Alaska
  11. 1.9 67 km SW of Covenant Life, Alaska
  12. 2.0 72 km WSW of Covenant Life, Alaska
  13. 1.7 79 km WSW of Mosquito Lake, Alaska
  14. 1.8 78 km SW of Covenant Life, Alaska
  15. 1.5 Southeastern 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 5.0 on 2019-09-01 — it released about 130,000 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.