QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near Anchorage, AK

No earthquake was likely felt in Anchorage in the 24 hours to 6:01 am AKST (15:01 UTC). The last one was M 3.5, 39 km (24 mi) SSW, at 4:48 pm AKDT on 27 October 2026, estimated intensity II (weak) in town; 98 felt reports to USGS. Every earthquake near Anchorage

This page: a magnitude 2.0 earthquake was recorded 20 km (12 mi) north of Anchorage, AK, at 10:44 am AKDT on 19 October 2022 (18:44 UTC), 14 km deep.

USGS: 7 km ENE of Point MacKenzie, Alaska

20 km (12 mi) N of Anchorage, AK

10:44 am AKDT, Oct 19, 2022 · · 14 km deep · released about 30 lb of TNT

Every earthquake near Anchorage Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Anchorage Municipality 39 kmMatanuska-Susitna 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
10:44 am AKDT on 19 October 2022 ()
Where
20 km (12 mi) north of Anchorage, AK · earthquakes near Anchorage
Magnitude
M 2.0 (ml)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Anchorage Municipality, 39 km SE
Nearest mapped fault
Castle Mountain fault, 23 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1465 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 7 km (4 mi) from the epicentre. In Anchorage, 20 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: Big Lake, Eagle River, Knik-Fairview, Elmendorf Air Force Base, Houston, Meadow Lakes.

How big was it?

This earthquake released about 30 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 5.8 500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 350,000× the energy of this one
  3. Around the size people start to feel M 3.0 32× the energy of this one
  4. This earthquake M 2.0 about 30 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 7.1 on 2018-11-30 — about 45,000,000 times the energy of this one.

Before 2016, the USGS record lists 20 earthquakes of M5 or more within 50 km; the five largest:

  1. 5.6 11 km NW of Big Lake, Alaska · 25 km NW of this epicentre
  2. 5.6 5 km N of Susitna, Alaska · 42 km WNW of this epicentre
  3. 5.5 2 km ENE of Eagle River, Alaska · 19 km ESE of this epicentre
  4. 5.5 9 km E of Susitna, Alaska · 31 km WNW of this epicentre
  5. 5.5 26 km SSW of Anchorage, Alaska · 46 km SSW 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 61.3952, -149.8516. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Anchorage Municipality, AK 39 km (24 mi) SE earthquakes near Anchorage Municipality
Matanuska-Susitna Borough, AK 98 km (61 mi) N earthquakes near Matanuska-Susitna Borough

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

Aftershocks so far

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

  1. 2.0 13 km N of Meadow Lakes, Alaska
  2. 4.3 11 km N of Meadow Lakes, Alaska
  3. 1.7 16 km S of Anchorage, Alaska
  4. 4.0 10 km N of Meadow Lakes, Alaska
  5. 2.2 9 km WSW of Knik, Alaska
  6. 2.0 4 km NW of Meadow Lakes, Alaska
  7. 1.9 13 km W of Point MacKenzie, Alaska
  8. 1.9 19 km SE of Elmendorf Air Force Base, Alaska
  9. 1.9 13 km WNW of Point MacKenzie, Alaska
  10. 1.6 12 km W of Point MacKenzie, Alaska
  11. 1.7 12 km W of Point MacKenzie, Alaska
  12. 1.6 11 km W of Point MacKenzie, Alaska
  13. 2.1 7 km ENE of Point MacKenzie, Alaska
  14. 2.3 11 km W of Point MacKenzie, Alaska
  15. 2.0 11 km WNW of Point MacKenzie, 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.