QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Homer, AK

No earthquake was likely felt in Homer in the 24 hours to 7:42 am AKST (16:42 UTC). The last one was M 4.3, 71 km (44 mi) NNE, at 2:30 am AKST on 1 November 2026, estimated intensity II (weak) in town; 115 felt reports to USGS. Every earthquake near Homer

This page: a magnitude 1.7 earthquake was recorded 47 km (29 mi) northeast of Homer, AK, at 5:25 pm AKST on 26 November 2021 (02:25 UTC), 12 km deep.

USGS: 6 km ENE of Fox River, Alaska

5:25 pm AKST, Nov 26, 2021 · · 12 km deep · released about 11 lb of TNT

10 km30 km60 km120 km N Kenai Peninsula Borough 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
5:25 pm AKST on 26 November 2021 ()
Where
47 km (29 mi) northeast of Homer, AK · earthquakes near Homer
Magnitude
M 1.7 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Kenai Peninsula Borough, 98 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1776 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 2 km (1 mi) from the epicentre. In Homer, 47 km away, the estimate is intensity I (not felt). 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.

Earthquakes near other towns within 30 km: Fritz Creek.

How big was it?

This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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 4.4 on 2019-01-09 — about 11,000 times the energy of this one.

Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:

  1. 6.0 31 km S of Funny River, Alaska · 40 km NNE of this epicentre
  2. 6.0 6 km SSE of Fox River, Alaska · 10 km SSW of this epicentre
  3. 5.9 13 km N of Fox River, Alaska · 12 km NNW of this epicentre
  4. 5.6 7 km SE of Fritz Creek, Alaska · 30 km SW 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 59.8804, -150.8541. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kenai Peninsula Borough, AK 98 km (61 mi) NW earthquakes near Kenai Peninsula Borough

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

Aftershocks so far

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

  1. 1.8 20 km ESE of Kasilof, Alaska
  2. 1.6 13 km SE of Clam Gulch, Alaska
  3. 1.5 11 km NW of Fox River, Alaska
  4. 1.6 7 km SE of Clam Gulch, Alaska
  5. 1.9 16 km SE of Kasilof, Alaska
  6. 3.0 22 km N of Fox River, Alaska
  7. 1.6 4 km SW of Halibut Cove, Alaska
  8. 1.6 31 km SE of Fox River, Alaska
  9. 1.7 9 km E of Fritz Creek, Alaska
  10. 1.8 30 km ESE of Fox River, Alaska
  11. 1.7 30 km SSE of Funny River, Alaska
  12. 1.5 33 km ENE of Fox River, Alaska
  13. 2.0 23 km S of Funny River, Alaska
  14. 1.9 16 km ENE of Fox River, Alaska
  15. 1.7 11 km SW of Halibut 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.