QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Funny River, AK

No earthquake was likely felt in Funny River in the 24 hours to 12:46 pm AKST (21:46 UTC). The last one was M 3.5, 42 km (26 mi) ENE, at 5:46 am AKST on 8 November 2026, estimated intensity II (weak) in town; 10 felt reports to USGS. Every earthquake near Funny River

This page: a magnitude 1.8 earthquake was recorded 22 km (14 mi) south-southwest of Funny River, AK, at 4:01 pm AKDT on 31 October 2023 (00:01 UTC), 65 km deep.

USGS: 21 km SSW of Funny River, Alaska

4:01 pm AKDT, Oct 31, 2023 · · 65 km deep · released about 15 lb of TNT

Every earthquake near Funny River Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kenai Peninsula Borough 81 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
4:01 pm AKDT on 31 October 2023 ()
Where
22 km (14 mi) south-southwest of Funny River, AK · earthquakes near Funny River
Magnitude
M 1.8 (ml)
Depth
65 km below the surface
Felt
no reports yet
Nearest
Kenai Peninsula Borough, 81 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1089 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Funny River, 22 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: Soldotna, Sterling, Cohoe, Kalifornsky, Ridgeway.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 2019-07-03 — about 22,000 times the energy of this one.

Before 2016, the USGS record lists 5 earthquakes of M5 or more within 50 km:

  1. 6.8 24 km ENE of Sterling, Alaska · 45 km NNE of this epicentre
  2. 6.0 31 km S of Funny River, Alaska · 14 km SE of this epicentre
  3. 5.9 13 km N of Fox River, Alaska · 38 km S of this epicentre
  4. 5.2 17 km WNW of Clam Gulch, Alaska · 47 km W of this epicentre
  5. 5.0 21 km WNW of Kalifornsky, Alaska · 48 km WNW 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 60.3100, -150.8496. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kenai Peninsula Borough, AK 81 km (51 mi) W earthquakes near Kenai Peninsula Borough
Anchorage Municipality, AK 128 km (80 mi) NE 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 16 km ESE of Clam Gulch, Alaska
  2. 1.7 3 km SSE of Nikiski, Alaska
  3. 3.0 30 km SE of Funny River, Alaska
  4. 1.8 15 km SSE of Funny River, Alaska
  5. 1.7 40 km ENE of Fox River, Alaska
  6. 2.2 18 km ESE of Kasilof, Alaska
  7. 1.7 14 km SSE of Funny River, Alaska
  8. 1.5 4 km ESE of Nikiski, Alaska
  9. 1.6 2 km N of Kenai, Alaska
  10. 1.5 22 km SSE of Clam Gulch, Alaska
  11. 1.8 14 km S of Clam Gulch, Alaska
  12. 2.6 14 km NNE of Ridgeway, Alaska
  13. 1.9 7 km SE of Kasilof, Alaska
  14. 1.6 19 km NNE of Sterling, Alaska
  15. 1.6 10 km ESE of Clam Gulch, 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.