QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Fishhook, AK

No earthquake was likely felt in Fishhook in the 24 hours to 10:16 am AKST (19:16 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 1.8 earthquake was recorded 28 km (17 mi) northwest of Fishhook, AK, at 8:03 pm AKDT on 9 July 2024 (04:03 UTC), 3.0 km deep. 1 person has reported feeling it to USGS.

USGS: 27 km NW of Fishhook, Alaska

80 km (50 mi) N of Anchorage, AK

8:03 pm AKDT, Jul 9, 2024 · · 3.0 km deep · released about 15 lb of TNT

Every earthquake near Fishhook Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Matanuska-Susitna Borough 38 kmAnchorage Municipality 85 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
8:03 pm AKDT on 9 July 2024 ()
Where
28 km (17 mi) northwest of Fishhook, AK · earthquakes near Fishhook
Magnitude
M 1.8 (ml)
Depth
3.0 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Matanuska-Susitna Borough, 38 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 821 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 13 km (8 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.

Earthquakes near other towns within 30 km: Susitna North.

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 5.1 on 2020-11-07 — about 89,000 times the energy of this one.

Before 2016, the USGS record lists 11 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.9 23 km NE of Willow, Alaska · 7 km WSW of this epicentre
  2. 5.8 37 km ENE of Susitna North, Alaska · 46 km NNE of this epicentre
  3. 5.8 14 km NNE of Fishhook, Alaska · 27 km ESE of this epicentre
  4. 5.6 11 km NW of Big Lake, Alaska · 47 km SW of this epicentre
  5. 5.4 25 km NNW of Willow, Alaska · 28 km W 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 61.9249, -149.6038. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Matanuska-Susitna Borough, AK 38 km (24 mi) N earthquakes near Matanuska-Susitna Borough
Anchorage Municipality, AK 85 km (53 mi) SSE earthquakes near Anchorage Municipality

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

Aftershocks so far

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

  1. 1.7 26 km NNE of Susitna North, Alaska
  2. 1.7 17 km SW of Susitna North, Alaska
  3. 1.5 25 km NE of Susitna North, Alaska
  4. 1.8 5 km ESE of Big Lake, Alaska
  5. 1.9 6 km NE of Willow, Alaska
  6. 1.9 6 km SE of Willow, Alaska
  7. 1.5 18 km WNW of Fishhook, Alaska
  8. 1.6 6 km SSE of Talkeetna, Alaska
  9. 1.6 6 km SSE of Talkeetna, Alaska
  10. 1.5 6 km WSW of Houston, Alaska
  11. 2.0 21 km N of Willow, Alaska
  12. 1.5 7 km SE of Susitna North, Alaska
  13. 1.9 2 km E of Big Lake, Alaska
  14. 3.1 3 km SE of Big Lake, Alaska
  15. 2.4 21 km N of Fishhook, 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.