QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

15 km W of Point Possession, Alaska

· 9.5 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kenai Peninsula Borough 95 kmAnchorage Municipality 95 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 2.7 (ml)
Depth
9.5 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Kenai Peninsula Borough, 95 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2338 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 60.9088, -150.9680. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kenai Peninsula Borough, AK 95 km (59 mi) NE of here earthquakes near Kenai Peninsula Borough
Anchorage Municipality, AK 95 km (59 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

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

  1. 1.6 11 km SE of Point Possession, Alaska
  2. 1.6 22 km ENE of Beluga, Alaska
  3. 1.8 15 km WNW of Point Possession, Alaska
  4. 1.9 13 km SSE of Point Possession, Alaska
  5. 1.6 21 km NE of Beluga, Alaska
  6. 1.8 19 km NNW of Sterling, Alaska
  7. 1.6 29 km ENE of Beluga, Alaska
  8. 1.6 21 km WNW of Beluga, Alaska
  9. 1.5 10 km ESE of Point Possession, Alaska
  10. 1.6 21 km NNE of Sterling, Alaska
  11. 1.6 5 km ESE of Salamatof, Alaska
  12. 1.5 8 km ENE of Ridgeway, Alaska
  13. 2.8 9 km NNW of Nikiski, Alaska
  14. 2.2 23 km ENE of Beluga, Alaska
  15. 1.7 6 km E of Salamatof, 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 4.5 on 2018-10-15 — it released about 500 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.