Earthquake · reviewed by a seismologist
M 1.5ml
Earthquake near Salcha, AK
No earthquake was likely felt in Salcha in the 24 hours to 6:47 pm AKST (03:47 UTC). The last one was M 1.8, 6 km (4 mi) SSW, at 4:06 pm AKST on 7 November 2026, estimated intensity II (weak) in town. Every earthquake near Salcha
This page: a magnitude 1.5 earthquake was recorded 28 km (17 mi) east-northeast of Salcha, AK, at 7:29 am AKDT on 19 October 2026 (15:29 UTC), 5.7 km deep.
USGS: 27 km ENE of Salcha, Alaska
- When
- 7:29 am AKDT on 19 October 2026 ()
- Where
- 28 km (17 mi) east-northeast of Salcha, AK · earthquakes near Salcha
- Magnitude
- M 1.5 (ml)
- Depth
- 5.7 km below the surface
- Felt
- no reports yet
- Nearest
- Fairbanks North Star Borough, 6 km WNW
- Nearest mapped fault
- Atsaksovluk fault, 13 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 26 days ago
Earthquake alerts for Salcha, AK
Get a notification in this browser when USGS records an earthquake near Salcha, 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, people at rest would likely notice it out to about 8 km (5 mi) from the epicentre. In Salcha, 28 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.
How big was it?
This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
- Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
- Around the size people start to feel M 3.0 180× the energy of this one
- This earthquake M 1.5 about 5.4 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 4.9 on 2021-09-14 — about 130,000 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 · 21 km W 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 64.6390, -146.3850. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Fairbanks North Star Borough, AK | 6 km (4 mi) | WNW | earthquakes near Fairbanks North Star Borough |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
4 earthquakes have been recorded within 50 km since this one.
- 1.4 11 km NNE of Pleasant Valley, Alaska
- 1.4 3 km SSE of Salcha, Alaska
- 1.4 8 km E of Eielson Air Force Base, Alaska
- 1.7 3 km SE 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.
Revisions
USGS refines a solution as more stations report. Every change we have seen is listed here.
| What changed | From | To | When |
|---|---|---|---|
| review status | automatic | reviewed | |
| longitude | -146.39 | -146.38 | |
| latitude | 64.64 | 64.64 | |
| magnitude | 1.4 | 1.5 |
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.