Earthquake · reviewed by a seismologist
M 2.4ml
Earthquake near Anchorage, AK
No earthquake was likely felt in Anchorage in the 24 hours to 5:37 am AKST (14:37 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 2.4 earthquake was recorded 40 km (25 mi) south-southeast of Anchorage, AK, at 8:15 am AKST on 12 February 2022 (17:15 UTC), 20 km deep. 2 people have reported feeling it to USGS.
USGS: 5 km E of Hope, Alaska
40 km (25 mi) SSE of Anchorage, AK
- When
- 8:15 am AKST on 12 February 2022 ()
- Where
- 40 km (25 mi) south-southeast of Anchorage, AK · earthquakes near Anchorage
- Magnitude
- M 2.4 (ml)
- Depth
- 20 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Anchorage Municipality, 33 km NNE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1658 days ago
Earthquake alerts for Anchorage, AK
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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 5 km (3 mi) from the epicentre. In Anchorage, 40 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: Girdwood.
How big was it?
This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
- Magna, Utah 2020 M 5.7 89,000× the energy of this one
- Around the size people start to feel M 3.0 7.9× the energy of this one
- This earthquake M 2.4 about 120 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 5.8 on 2018-11-30 — about 130,000 times the energy of this one.
Before 2016, the USGS record lists 11 earthquakes of M5 or more within 50 km; the five largest:
- 6.0 21 km N of Whittier, Alaska · 46 km E of this epicentre
- 5.7 13 km S of Girdwood, Alaska · 22 km ESE of this epicentre
- 5.6 17 km W of Whittier, Alaska · 34 km ESE of this epicentre
- 5.5 2 km ENE of Eagle River, Alaska · 47 km N of this epicentre
- 5.5 26 km SSW of Anchorage, Alaska · 34 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 60.9083, -149.5362. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Anchorage Municipality, AK | 33 km (20 mi) | NNE | earthquakes near Anchorage Municipality |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
51 earthquakes have been recorded within 50 km since this one.
- 1.9 24 km NNE of Cooper Landing, Alaska
- 2.2 15 km NW of Girdwood, Alaska
- 2.3 7 km N of Anchorage, Alaska
- 2.6 9 km NE of Girdwood, Alaska
- 3.9 8 km NE of Girdwood, Alaska
- 1.5 9 km SW of Elmendorf Air Force Base, Alaska
- 3.1 Southern Alaska
- 3.3 8 km WSW of Anchorage, Alaska
- 3.6 11 km WSW of Hope, Alaska
- 1.5 5 km WSW of Hope, Alaska
- 1.6 26 km SW of Hope, Alaska
- 1.5 16 km NNW of Hope, Alaska
- 1.7 5 km E of Cooper Landing, Alaska
- 1.8 6 km ENE of Anchorage, Alaska
- 2.1 13 km SW of Hope, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.