USGS · August 11, 2026
Magnitude 3.9 earthquake — 59 km NE of Pedro Bay, Alaska
A magnitude 3.9 earthquake was recorded near 59 km NE of Pedro Bay, Alaska on Aug 11, 2026, 02:26 PM (local time at the epicentre — AKDT, UTC-8), at a depth of about 147.2 km, according to USGS.
USGSFelt by 3 people · community intensity II (weak)Shaking IIIntermediate (70–300 km)Reviewed by a seismologist
Updated 2026-09-01 06:46 UTC
The full record
- Magnitude
- M 3.9 · local (Richter) magnitude
- Location
- 59 km NE of Pedro Bay, Alaska
- Local time at the epicentre
- Aug 11, 2026, 02:26 PM — AKDT, UTC-8
- Time (UTC)
- 2026-08-11 22:26 UTC
- Depth
- 147.2 km · Intermediate (70–300 km)
- Coordinates
- 60.105, -153.257
- Felt reports
- Felt by 3 people · community intensity II (weak)
- Estimated shaking
- II · Weak
- Tsunami
- No tsunami evaluation was flagged for this earthquake.
- Significance
- 235 / 1000 · routine event
- Solution quality
- 248 seismic stations used · 20° azimuthal gap (well-constrained epicentre)
- Review status
- Reviewed by a seismologist
- Catalog
- USGS
Epicentre and nearby recent earthquakes
The highlighted circle is this earthquake. Smaller circles are other events recorded nearby in the last 30 days.
What the shaking was like
At this depth the energy spreads out before it reaches the surface, so shaking is usually weaker but felt over a wider area.
Estimated instrumental shaking II (Weak): Felt by a few people at rest, mostly on upper floors.
People who reported it described intensity II (Weak): Felt by a few people at rest, mostly on upper floors.
Felt it yourself? USGS collects first-hand reports through “Did You Feel It?”, and those reports are what produce the community intensity above.
Who lives nearby
About 0 people live in towns within 30 km of the epicentre, and 1,930 within 100 km. Distances are from the epicentre to the town centre.
| Place | Distance | Population |
|---|---|---|
| Anchor Point | 87.4 km ESE | 1,930 |
Earthquake history in this area
12 earthquakes of magnitude 4.5+ have been recorded within 200 km of this epicentre since 1960, in Alaska.
Other earthquakes near this epicentre
8 other events within 100 km in the last 30 days.
M 3.4 54 km ENE of Pedro Bay, Alaska
M 3.4 56 km WNW of Nanwalek, AlaskaShaking II
M 3.7 45 km W of Happy Valley, AlaskaFelt · 15
M 3.3 48 km ESE of Port Alsworth, Alaska
M 3.7 42 km E of Pedro Bay, AlaskaFelt · 2
M 3.9 64 km ESE of Pedro Bay, AlaskaFelt · 8
M 3.6 59 km ENE of Pedro Bay, AlaskaShaking I
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Frequently asked questions
How strong was the 59 km NE of Pedro Bay, Alaska earthquake?
Magnitude 3.9 (local (Richter) magnitude), at a depth of 147.2 km. At this depth the energy spreads out before it reaches the surface, so shaking is usually weaker but felt over a wider area.
Exactly when did it happen?
Aug 11, 2026, 02:26 PM (local time at the epicentre — AKDT, UTC-8). In universal time: 2026-08-11 22:26 UTC.
Was it felt?
Felt by 3 people · community intensity II (weak). Felt by a few people at rest, mostly on upper floors.
Was there a tsunami warning?
No tsunami evaluation was flagged for this earthquake.
Which towns are closest to the epicentre?
The closest is Anchor Point, 87.4 km ESE (population 1,930).
Are earthquakes normal in this area?
Yes. The largest earthquake recorded within 200 km since 1960 was magnitude 7.1 (47 km ESE of Pedro Bay, Alaska, 2016), and 8 further events were recorded within 100 km in the last 30 days.
How do I get alerts for the next earthquake here?
Install the free SeismoWatch Android app, draw a box over this area, set a minimum magnitude, and turn alerts on.
About this page
Event data: U.S. Geological Survey (USGS), the European-Mediterranean Seismological Centre (EMSC) and, in Venezuela, FUNVISIS. Populated places and time zones: GeoNames (CC BY 4.0). Preliminary solutions are revised as more observations arrive.