QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

16 km SE of Fox River, Alaska

· 54 km deep · released about 5.4 lb of TNT

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10 km30 km60 km120 km N Kenai Peninsula 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 1.5 (ml)
Depth
54 km below the surface
Felt
no reports yet
Nearest
Kenai Peninsula Borough, 110 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2410 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 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 59.7475, -150.7680. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kenai Peninsula Borough, AK 110 km (69 mi) SE of here earthquakes near Kenai Peninsula Borough

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

Aftershocks so far

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

  1. 1.9 42 km SSE of Funny River, Alaska
  2. 1.6 21 km ESE of Fox River, Alaska
  3. 2.9 25 km SE of Kasilof, Alaska
  4. 2.3 6 km NE of Halibut Cove, Alaska
  5. 1.8 4 km WNW of Halibut Cove, Alaska
  6. 1.6 25 km S of Halibut Cove, Alaska
  7. 1.8 7 km E of Halibut Cove, Alaska
  8. 2.0 41 km E of Fox River, Alaska
  9. 2.2 23 km E of Halibut Cove, Alaska
  10. 1.5 16 km E of Fox River, Alaska
  11. 1.9 14 km SSW of Halibut Cove, Alaska
  12. 1.6 9 km ESE of Fox River, Alaska
  13. 1.6 44 km NE of Fox River, Alaska
  14. 1.7 21 km ESE of Clam Gulch, Alaska
  15. 1.6 21 km NW of Fox River, 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.