Earthquake · reviewed by a seismologist
M 1.7ml
Earthquake near Salcha, AK
No earthquake was likely felt in Salcha in the 24 hours to 12:17 pm AKST (21:17 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 1.7 earthquake was recorded 6 km (4 mi) south-southwest of Salcha, AK, at 3:17 pm AKST on 19 January 2024 (00:17 UTC), 8.1 km deep.
USGS: 6 km SSW of Salcha, Alaska
- When
- 3:17 pm AKST on 19 January 2024 ()
- Where
- 6 km (4 mi) south-southwest of Salcha, AK · earthquakes near Salcha
- Magnitude
- M 1.7 (ml)
- Depth
- 8.1 km below the surface
- Felt
- no reports yet
- Nearest
- Fairbanks North Star Borough, 31 km NE
- Nearest mapped fault
- Atsaksovluk fault, 2 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 1019 days ago
Earthquake alerts for Salcha, AK
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Alerts are on for .
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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 9 km (6 mi) from the epicentre. In Salcha, 6 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.
Likely felt in: Salcha 6 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 11 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,400,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
- Around the size people start to feel M 3.0 89× the energy of this one
- This earthquake M 1.7 about 11 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 250,000 times the energy of this one.
Before 2016, the USGS record lists 5 earthquakes of M5 or more within 50 km:
- 7.1 Central Alaska · 18 km NNE of this epicentre
- 6.0 39 km SW of Salcha, Alaska · 33 km SW of this epicentre
- 5.7 15 km SSW of Badger, Alaska · 40 km NW of this epicentre
- 5.5 10 km SSW of Badger, Alaska · 40 km NW of this epicentre
- 5.1 5 km NNW of Badger, Alaska · 50 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 64.4779, -146.9701. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Fairbanks North Star Borough, AK | 31 km (19 mi) | NE | earthquakes near Fairbanks North Star Borough |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
60 earthquakes have been recorded within 50 km since this one.
- 1.7 4 km SSW of Salcha, Alaska
- 2.0 5 km SW of Salcha, Alaska
- 2.7 3 km S of Salcha, Alaska
- 1.5 3 km SSE of Salcha, Alaska
- 1.6 5 km S of Salcha, Alaska
- 2.5 5 km SSW of Salcha, Alaska
- 1.9 3 km S of Salcha, Alaska
- 1.9 4 km SSW of Salcha, Alaska
- 1.6 3 km S of Salcha, Alaska
- 1.6 4 km S of Salcha, Alaska
- 2.4 3 km W of Salcha, Alaska
- 1.7 4 km SW of Salcha, Alaska
- 1.7 3 km SSW of Salcha, Alaska
- 1.5 5 km SSW of Salcha, Alaska
- 2.0 2 km S 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.