Earthquake · automatic estimate, may change
M 1.1ml
Earthquake near Salcha, AK
USGS: 9 km WNW of Salcha, Alaska
- When
- 11:01 am AKDT on 1 October 2026 ()
- Where
- 9 km (6 mi) WNW of Salcha, AK · earthquakes near Salcha
- Magnitude
- M 1.1 (ml)
- Depth
- 5.0 km below the surface
- Felt
- no reports yet
- Nearest
- Fairbanks North Star Borough, 30 km ENE
- Nearest mapped fault
- Atsaksovluk fault, under 1 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 31 hours ago
A magnitude 1.1 earthquake was recorded 9 km (6 mi) WNW of Salcha, AK, at 11:01 am AKDT on 1 October 2026 (19:01 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, North Pole.
How big was it?
This earthquake released about 1.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 11,000,000× the energy of this one
- Magna, Utah 2020 M 5.7 7,900,000× the energy of this one
- Around the size people start to feel M 3.0 710× the energy of this one
- This earthquake M 1.1 about 1.3 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 2,000,000 times the energy of this one.
Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:
- 7.1 Central Alaska · 14 km ENE of this epicentre
- 6.0 39 km SW of Salcha, Alaska · 38 km SSW of this epicentre
- 5.7 15 km SSW of Badger, Alaska · 31 km WNW of this epicentre
- 5.5 3 km ESE of Farmers Loop, Alaska · 46 km NW of this epicentre
- 5.5 10 km SSW of Badger, Alaska · 30 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 64.5640, -147.0680. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Fairbanks North Star Borough, AK | 30 km (18 mi) | ENE | earthquakes near Fairbanks North Star Borough |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
5 earthquakes have been recorded within 50 km since this one.
- 1.4 7 km ENE of Fox, Alaska
- 1.0 8 km ENE of Badger, Alaska
- 0.9 7 km N of North Pole, Alaska
- 1.7 5 km NNW of North Pole, Alaska
- 1.1 13 km NW of Two Rivers, 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.