Earthquake · automatic estimate, may change
M 2.1ml
Earthquake near Anchorage, AK
USGS: 9 km W of Point MacKenzie, Alaska
21 km (13 mi) NW of Anchorage, AK
- When
- 8:42 pm AKDT on 1 October 2026 ()
- Where
- 21 km (13 mi) NW of Anchorage, AK · earthquakes near Anchorage
- Magnitude
- M 2.1 (ml)
- Depth
- 46 km below the surface
- Felt
- no reports yet
- Nearest
- Anchorage Municipality, 51 km ESE
- Nearest mapped fault
- Castle Mountain fault, 20 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 21 hours ago
A magnitude 2.1 earthquake was recorded 21 km (13 mi) NW of Anchorage, AK, at 8:42 pm AKDT on 1 October 2026 (04:42 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Big Lake.
How big was it?
This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
- Magna, Utah 2020 M 5.7 250,000× the energy of this one
- Around the size people start to feel M 3.0 22× the energy of this one
- This earthquake M 2.1 about 43 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 7.1 on 2018-11-30 — about 32,000,000 times the energy of this one.
Before 2016, the USGS record lists 25 earthquakes of M5 or more within 50 km; the five largest:
- 5.8 27 km N of Beluga, Alaska · 47 km W of this epicentre
- 5.8 20 km ENE of Beluga, Alaska · 35 km WSW of this epicentre
- 5.6 11 km NW of Big Lake, Alaska · 25 km N of this epicentre
- 5.6 5 km N of Susitna, Alaska · 33 km NW of this epicentre
- 5.5 2 km ENE of Eagle River, Alaska · 34 km E 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 61.3560, -150.1620. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Anchorage Municipality, AK | 51 km (32 mi) | ESE | earthquakes near Anchorage Municipality |
| Matanuska-Susitna Borough, AK | 107 km (66 mi) | NNE | earthquakes near Matanuska-Susitna Borough |
| Kenai Peninsula Borough, AK | 161 km (100 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
1 earthquake has been recorded within 50 km since this one.
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 |
|---|---|---|---|
| longitude | -150.16 | -150.16 | |
| latitude | 61.36 | 61.36 | |
| depth | 45.7 | 46.4 | |
| location | 9 km WNW of Point MacKenzie, Alaska | 9 km W of Point MacKenzie, Alaska | |
| longitude | -150.15 | -150.16 | |
| latitude | 61.39 | 61.36 | |
| depth | 34.8 | 45.7 |
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.