QuakeIndex

Earthquake · automatic estimate, may change

M 2.5ml

13 km N of Cooper Landing, Alaska

· 27 km deep · released about 170 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Anchorage Municipality 69 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 2.5 (ml)
Depth
27 km below the surface
Felt
no reports yet
Nearest
Anchorage Municipality, 69 km NNE
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 1858 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 60.6151, -149.8363. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Anchorage Municipality, AK 69 km (43 mi) SSW of here earthquakes near Anchorage Municipality

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

Aftershocks so far

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

  1. 1.5 14 km WSW of Cooper Landing, Alaska
  2. 1.7 2 km SSW of Cooper Landing, Alaska
  3. 2.0 21 km E of Funny River, Alaska
  4. 1.7 9 km SSW of Hope, Alaska
  5. 3.5 11 km NNE of Hope, Alaska
  6. 1.9 32 km SE of Point Possession, Alaska
  7. 1.7 Kenai Peninsula, Alaska
  8. 1.5 21 km ENE of Sterling, Alaska
  9. 1.6 34 km SSW of Cooper Landing, Alaska
  10. 1.5 20 km E of Point Possession, Alaska
  11. 1.7 16 km N of Moose Pass, Alaska
  12. 1.8 17 km SW of Hope, Alaska
  13. 1.6 27 km WSW of Hope, Alaska
  14. 2.3 18 km N of Cooper Landing, Alaska
  15. 1.6 25 km WNW of Seward, 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 4.2 on 2016-02-15 — it released about 350 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.