Earthquake · automatic estimate, may change
M 3.2ml
Earthquake near Nikiski, AK
No earthquake was likely felt in Nikiski in the 24 hours to 11:16 am AKST (20:16 UTC). The last one was M 4.3, 58 km (36 mi) SSE, at 2:30 am AKST on 1 November 2026, estimated intensity II (weak) in town; 115 felt reports to USGS. Every earthquake near Nikiski
This page: a magnitude 3.2 earthquake was recorded 41 km (26 mi) north-northeast of Nikiski, AK, at 1:59 am AKST on 6 November 2025 (10:59 UTC), 20 km deep. 2 people have reported feeling it to USGS. The magnitude and location are an automatic first estimate and may change.
USGS: 11 km ESE of Tyonek, Alaska
60 km (38 mi) WSW of Anchorage, AK
- When
- 1:59 am AKST on 6 November 2025 ()
- Where
- 41 km (26 mi) north-northeast of Nikiski, AK · earthquakes near Nikiski
- Magnitude
- M 3.2 (ml)
- Depth
- 20 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Anchorage Municipality, 91 km ENE
- Nearest mapped fault
- Granite Point anticline (Cook Inlet folds), 17 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 288 days ago
Earthquake alerts for Nikiski, 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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 42 km (26 mi) from the epicentre. In Nikiski, 41 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: Nikiski 41 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 180,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
- Magna, Utah 2020 M 5.7 5,600× the energy of this one
- This earthquake M 3.2 about 1,900 lb of TNT
- Around the size people start to feel M 3.0 this one released 2× more
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 4.8 on 2022-07-12 — about 250 times the energy of this one.
Before 2016, the USGS record lists 19 earthquakes of M5 or more within 50 km; the five largest:
- 6.8 Southern Alaska · 12 km NW of this epicentre
- 6.8 4 km NE of Beluga, Alaska · 17 km NNW of this epicentre
- 6.7 6 km WNW of Nikiski, Alaska · 42 km SW of this epicentre
- 6.4 19 km SSE of Tyonek, Alaska · 15 km SSW of this epicentre
- 6.0 Southern Alaska · 45 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 61.0208, -150.9481. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Anchorage Municipality, AK | 91 km (57 mi) | ENE | earthquakes near Anchorage Municipality |
| Kenai Peninsula Borough, AK | 104 km (65 mi) | SW | earthquakes near Kenai Peninsula Borough |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 1.7 2 km SE of Point Possession, Alaska
- 3.8 14 km SE of Tyonek, Alaska
- 1.7 18 km W of Tyonek, Alaska
- 2.0 15 km E of Point Possession, Alaska
- 1.7 17 km NNW of Beluga, Alaska
- 1.8 20 km NNE of Nikiski, Alaska
- 1.5 20 km NNE of Point Possession, Alaska
- 1.5 10 km S of Tyonek, Alaska
- 2.2 23 km SSW of Susitna, Alaska
- 2.0 8 km WNW of Salamatof, Alaska
- 2.8 13 km NNW of Sterling, Alaska
- 1.7 14 km NW of Beluga, Alaska
- 1.9 22 km SSE of Point Possession, Alaska
- 2.4 26 km SSW of Susitna, Alaska
- 1.8 16 km SSW of Susitna, 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.