Earthquake · automatic estimate, may change
M 0.8ml
Earthquake near Salcha, AK
USGS: 15 km ENE of Salcha, Alaska
- When
- 5:59 pm AKDT on 29 September 2026 ()
- Where
- 16 km (10 mi) ENE of Salcha, AK · earthquakes near Salcha
- Magnitude
- M 0.8 (ml)
- Depth
- 5.0 km below the surface
- Felt
- no reports yet
- Nearest
- Fairbanks North Star Borough, 14 km NNE
- Nearest mapped fault
- Atsaksovluk fault, 11 km from its surface trace — near is not the same as on
- Status
- Automatic — a machine’s first estimate, which may change
USGS · last changed by USGS · we first saw it 3 days ago
A magnitude 0.8 earthquake was recorded 16 km (10 mi) ENE of Salcha, AK, at 5:59 pm AKDT on 29 September 2026 (01:59 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Eielson Air Force Base.
How big was it?
This earthquake released about 0.48 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 1.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 32,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 22,000,000× the energy of this one
- Around the size people start to feel M 3.0 2,000× the energy of this one
- This earthquake M 0.8 about 0.48 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 5.3 on 2024-01-19 — about 5,600,000 times the energy of this one.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 7.1 Central Alaska · 14 km NW 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 64.5520, -146.5800. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Fairbanks North Star Borough, AK | 14 km (9 mi) | NNE | earthquakes near Fairbanks North Star Borough |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
3 earthquakes have been recorded within 50 km since this one.
- 1.1 9 km WNW of Salcha, Alaska
- 1.7 23 km ENE of Harding-Birch Lakes, Alaska
- 1.0 7 km SSW of Salcha, 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.