QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near King Cove, AK

No earthquake was likely felt in King Cove in the 24 hours to 2:02 pm AKST (23:02 UTC). The last one was M 5.0, 171 km (106 mi) SSW, at 12:14 pm AKDT on 29 October 2026, estimated intensity II (weak) in town. Every earthquake near King Cove

This page: a magnitude 2.0 earthquake was recorded 21 km (13 mi) east of King Cove, AK, at 8:01 am AKDT on 21 October 2025 (16:01 UTC), 2.4 km deep.

USGS: 21 km E of King Cove, Alaska

8:01 am AKDT, Oct 21, 2025 · · 2.4 km deep · released about 36 lb of TNT

Every earthquake near King Cove Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aleutians East Borough 20 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
8:01 am AKDT on 21 October 2025 ()
Where
21 km (13 mi) east of King Cove, AK · earthquakes near King Cove
Magnitude
M 2.0 (ml)
Depth
2.4 km below the surface
Felt
no reports yet
Nearest
Aleutians East Borough, 20 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 388 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 16 km (10 mi) from the epicentre. In King Cove, 21 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 36 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 420,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 300,000× the energy of this one
  3. Around the size people start to feel M 3.0 27× the energy of this one
  4. This earthquake M 2.0 about 36 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.7 on 2016-09-06 — about 9,400 times the energy of this one.

Before 2016, the USGS record lists 8 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.0 59 km ENE of King Cove, Alaska · 39 km ENE of this epicentre
  2. 5.8 61 km SE of King Cove, Alaska · 47 km SE of this epicentre
  3. 5.8 Alaska Peninsula · 50 km ESE of this epicentre
  4. 5.5 65 km ESE of King Cove, Alaska · 47 km SE of this epicentre
  5. 5.3 66 km ESE of King Cove, Alaska · 47 km ESE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 55.0693, -161.9863. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Aleutians East Borough, AK 20 km (12 mi) N earthquakes near Aleutians East Borough

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

Aftershocks so far

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

  1. 0.4 50 km NE of King Cove, Alaska
  2. -0.1 53 km NE of King Cove, Alaska
  3. 0.9 52 km NE of King Cove, Alaska
  4. 1.1 48 km NNE of King Cove, Alaska
  5. 1.0 40 km NNE of King Cove, Alaska
  6. 0.8 51 km NNE of King Cove, Alaska
  7. 2.0 58 km NE of King Cove, Alaska
  8. 0.0 43 km NNE of King Cove, Alaska
  9. 0.3 44 km NNE of King Cove, Alaska
  10. 2.1 19 km S of King Cove, Alaska
  11. 2.8 28 km SE of King Cove, Alaska
  12. 2.1 62 km SE of King Cove, Alaska
  13. 1.7 24 km ENE of King Cove, Alaska
  14. 3.6 25 km ENE of King Cove, Alaska
  15. 1.8 54 km SSE of King Cove, 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.