Earthquake · reviewed by a seismologist
M 2.4ml
Earthquake near Dutch Harbor, AK
No earthquake was likely felt in Dutch Harbor in the 24 hours to 11:03 pm AKST (08:03 UTC). The last one was M 4.4, 117 km (73 mi) ESE, at 3:00 pm AKST on 11 November 2026, estimated intensity II (weak) in town. Every earthquake near Dutch Harbor
This page: a magnitude 2.4 earthquake was recorded 7 km (4 mi) northeast of Dutch Harbor, AK, at 1:31 pm AKST on 27 February 2024 (22:31 UTC), 94 km deep.
USGS: 6 km NE of Dutch Harbor, Alaska
- When
- 1:31 pm AKST on 27 February 2024 ()
- Where
- 7 km (4 mi) northeast of Dutch Harbor, AK · earthquakes near Dutch Harbor
- Magnitude
- M 2.4 (ml)
- Depth
- 94 km below the surface
- Felt
- no reports yet
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 917 days ago
Earthquake alerts for Dutch Harbor, AK
Get a notification in this browser when USGS records an earthquake near Dutch Harbor, AK. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 Dutch Harbor, 7 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: Unalaska.
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 4.8 on 2020-03-30 — about 4,000 times the energy of this one.
Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:
- 7.1 39 km S of Akutan, Alaska · 49 km ESE of this epicentre
- 6.2 36 km ESE of Unalaska, Alaska · 36 km SE of this epicentre
- 5.9 27 km WNW of Dutch Harbor, Alaska · 30 km WNW of this epicentre
- 5.9 13 km NE of Dutch Harbor, Alaska · 7 km NE of this epicentre
- 5.4 26 km WSW of Dutch Harbor, Alaska · 32 km WSW 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 53.9314, -166.4686. Map © OpenStreetMap contributors.
Aftershocks so far
50 earthquakes have been recorded within 50 km since this one.
- 1.7 3 km N of Dutch Harbor, Alaska
- 1.6 31 km SSW of Unalaska, Alaska
- 1.6 26 km SE of Unalaska, Alaska
- 3.4 19 km NE of Dutch Harbor, Alaska
- 1.7 29 km SSW of Unalaska, Alaska
- 1.6 16 km SSW of Unalaska, Alaska
- 1.8 46 km ESE of Unalaska, Alaska
- 2.2 22 km ESE of Unalaska, Alaska
- 1.6 27 km SE of Unalaska, Alaska
- 1.5 23 km W of Dutch Harbor, Alaska
- 1.9 15 km W of Akutan, Alaska
- 1.9 16 km WSW of Akutan, Alaska
- 1.8 15 km W of Akutan, Alaska
- 1.6 14 km W of Akutan, Alaska
- 1.9 22 km WSW of Dutch Harbor, 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.