Earthquake · reviewed by a seismologist
M 2.6ml
14 km SSE of Womens Bay, AK
Yes. A magnitude 2.6 earthquake was recorded 14 km SSE of Womens Bay, AK, at 5:20 am AKST on 4 November 2020 (14:20 UTC), 26 km deep. 2 people have reported feeling it to USGS.
- When
- Magnitude
- M 2.6 (ml)
- Depth
- 26 km below the surface
- Felt
- 2 reports · strongest reported intensity II
- Nearest
- Kodiak Island Borough, 81 km WNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2120 days ago
Earthquake alerts for Kodiak Station, AK
Get a notification in this browser when USGS records an earthquake near Kodiak Station, 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 small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. 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.
Earthquakes near other towns within 30 km: Kodiak Station, Kodiak.
How big was it?
This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
- Magna, Utah 2020 M 5.7 45,000× the energy of this one
- Around the size people start to feel M 3.0 4× the energy of this one
- This earthquake M 2.6 about 240 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 in our catalogue was M 4.1 on 2017-03-05 — about 180 times the energy of this one.
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 57.5650, -152.5902. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kodiak Island Borough, AK | 81 km (50 mi) | WNW | earthquakes near Kodiak Island Borough |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 2.2 8 km WNW of Kodiak Station, Alaska
- 2.3 3 km WNW of Port Lions, Alaska
- 1.9 5 km NNW of Womens Bay, Alaska
- 1.5 11 km E of Chiniak, Alaska
- 1.9 36 km E of Old Harbor, Alaska
- 1.6 16 km SSE of Chiniak, Alaska
- 1.6 15 km SSW of Womens Bay, Alaska
- 2.6 13 km WNW of Womens Bay, Alaska
- 3.1 9 km W of Womens Bay, Alaska
- 1.7 13 km WNW of Womens Bay, Alaska
- 1.6 14 km SSW of Port Lions, Alaska
- 1.6 21 km SW of Port Lions, Alaska
- 1.5 40 km SSW of Chiniak, Alaska
- 2.9 9 km SSE of Kodiak, Alaska
- 2.0 29 km ENE of Old Harbor, 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.