QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

19 km SW of Point Possession, Alaska

· 64 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kenai Peninsula Borough 90 kmAnchorage Municipality 98 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
64 km below the surface
Felt
no reports yet
Nearest
Kenai Peninsula Borough, 90 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1674 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 60.7892, -150.9192. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kenai Peninsula Borough, AK 90 km (56 mi) ENE of here earthquakes near Kenai Peninsula Borough
Anchorage Municipality, AK 98 km (61 mi) WSW of here earthquakes near Anchorage Municipality

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

Aftershocks so far

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

  1. 1.6 4 km SE of Beluga, Alaska
  2. 1.6 7 km NW of Beluga, Alaska
  3. 2.6 24 km SE of Point Possession, Alaska
  4. 1.5 3 km ENE of Tyonek, Alaska
  5. 1.7 14 km WSW of Tyonek, Alaska
  6. 1.5 29 km NNE of Point Possession, Alaska
  7. 2.0 12 km NE of Sterling, Alaska
  8. 1.7 9 km WNW of Point Possession, Alaska
  9. 1.6 10 km ESE of Point Possession, Alaska
  10. 1.5 17 km ENE of Nikiski, Alaska
  11. 1.6 7 km W of Funny River, Alaska
  12. 1.6 18 km NNW of Nikiski, Alaska
  13. 1.5 16 km S of Point Possession, Alaska
  14. 1.7 4 km NW of Point Possession, Alaska
  15. 1.9 12 km NW of Nikiski, 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 4.4 on 2017-11-17 — it released about 22,000 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.