QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

Earthquake near Fishhook, AK

No earthquake was likely felt in Fishhook in the 24 hours to 1:54 am AKST (10:54 UTC). The last one was M 4.4, 118 km (73 mi) E, at 11:11 am AKDT on 30 October 2026, estimated intensity II (weak) in town; 54 felt reports to USGS. Every earthquake near Fishhook

This page: a magnitude 3.0 earthquake was recorded 28 km (18 mi) north-northeast of Fishhook, AK, at 1:18 am AKDT on 14 August 2019 (09:18 UTC), 5.5 km deep. 4 people have reported feeling it to USGS.

USGS: 28 km NNE of Fishhook, Alaska

96 km (60 mi) NNE of Anchorage, AK

1:18 am AKDT, Aug 14, 2019 · · 5.5 km deep · released about 950 lb of TNT

Every earthquake near Fishhook Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Matanuska-Susitna Borough 37 kmAnchorage Municipality 91 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
1:18 am AKDT on 14 August 2019 ()
Where
28 km (18 mi) north-northeast of Fishhook, AK · earthquakes near Fishhook
Magnitude
M 3.0 (ml)
Depth
5.5 km below the surface
Felt
4 reports · strongest reported intensity IV
Measured shaking
intensity III (ShakeMap)
Nearest
Matanuska-Susitna Borough, 37 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2568 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 36 km (22 mi) from the epicentre. In Fishhook, 28 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.

Likely felt in: Fishhook 28 km, intensity II · Sutton-Alpine 33 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 4.3 on 2017-08-21 — about 89 times the energy of this one.

Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.9 23 km NE of Willow, Alaska · 35 km WSW of this epicentre
  2. 5.8 37 km ENE of Susitna North, Alaska · 34 km N of this epicentre
  3. 5.8 14 km NNE of Fishhook, Alaska · 15 km S of this epicentre
  4. 5.1 21 km SSE of Susitna North, Alaska · 31 km W of this epicentre
  5. 5.1 25 km ENE of Susitna North, Alaska · 33 km NNW 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 61.9904, -149.0885. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Matanuska-Susitna Borough, AK 37 km (23 mi) NW earthquakes near Matanuska-Susitna Borough
Anchorage Municipality, AK 91 km (57 mi) S earthquakes near Anchorage Municipality

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

Aftershocks so far

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

  1. 2.0 47 km NE of Susitna North, Alaska
  2. 1.5 9 km NNW of Tanaina, Alaska
  3. 2.2 55 km ENE of Susitna North, Alaska
  4. 1.9 23 km E of Susitna North, Alaska
  5. 1.5 Central Alaska
  6. 2.3 32 km N of Fishhook, Alaska
  7. 1.5 43 km ENE of Susitna North, Alaska
  8. 2.4 43 km ENE of Susitna North, Alaska
  9. 1.8 43 km ENE of Susitna North, Alaska
  10. 1.5 43 km ENE of Susitna North, Alaska
  11. 1.8 18 km NW of Fishhook, Alaska
  12. 1.5 34 km N of Chickaloon, Alaska
  13. 2.6 50 km N of Chickaloon, Alaska
  14. 1.7 41 km ENE of Susitna North, Alaska
  15. 1.7 26 km SE of Susitna North, 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.