Earthquake · reviewed by a seismologist
M 2.0ml
Earthquake near Eielson Air Force Base, AK
No earthquake was likely felt in Eielson Air Force Base in the 24 hours to 9:10 am AKST (18:10 UTC). The last one was M 1.7, 6 km (4 mi) SE, at 4:08 pm AKST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Eielson Air Force Base
This page: a magnitude 2.0 earthquake was recorded 40 km (25 mi) northeast of Eielson Air Force Base, AK, at 10:57 am AKST on 12 December 2024 (19:57 UTC), 11 km deep. 1 person has reported feeling it to USGS.
USGS: 19 km ENE of Pleasant Valley, Alaska
- When
- 10:57 am AKST on 12 December 2024 ()
- Where
- 40 km (25 mi) northeast of Eielson Air Force Base, AK · earthquakes near Eielson Air Force Base
- Magnitude
- M 2.0 (ml)
- Depth
- 11 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Fairbanks North Star Borough, 28 km S
- Nearest mapped fault
- Atsaksovluk fault, under 1 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 672 days ago
Earthquake alerts for Eielson Air Force Base, AK
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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, people at rest would likely notice it out to about 12 km (7 mi) from the epicentre. In Eielson Air Force Base, 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.
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.
- Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
- Magna, Utah 2020 M 5.7 350,000× the energy of this one
- Around the size people start to feel M 3.0 32× the energy of this one
- 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
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 7.1 Central Alaska · 37 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 64.9250, -146.4765. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Fairbanks North Star Borough, AK | 28 km (18 mi) | S | earthquakes near Fairbanks North Star Borough |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
21 earthquakes have been recorded within 50 km since this one.
- 1.5 4 km ESE of Eielson Air Force Base, Alaska
- 1.5 27 km NE of Pleasant Valley, Alaska
- 3.7 30 km NE of Pleasant Valley, Alaska
- 1.6 7 km SSE of Eielson Air Force Base, Alaska
- 2.5 25 km NE of Pleasant Valley, Alaska
- 1.6 8 km NNW of Salcha, Alaska
- 1.9 8 km E of Eielson Air Force Base, Alaska
- 1.6 28 km NNE of Pleasant Valley, Alaska
- 1.5 7 km ESE of Eielson Air Force Base, Alaska
- 2.4 4 km E of Eielson Air Force Base, Alaska
- 1.6 2 km SE of Salcha, Alaska
- 2.7 7 km SSE of Eielson Air Force Base, Alaska
- 3.1 5 km WNW of Salcha, Alaska
- 2.1 10 km ENE of Moose Creek, Alaska
- 2.9 10 km ENE of Moose Creek, 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.