USGS · October 11, 2026
Magnitude 3.6 earthquake near Susitna North, Alaska
A magnitude 3.6 earthquake was recorded near 39 km N of Petersville, Alaska on Oct 11, 2026, 05:15 AM (local time at the epicentre — AKDT, UTC-8), at a depth of about 104.1 km, according to USGS.
USGSShaking IIIntermediate (70–300 km)Automatic solution — subject to revision
Updated 2026-10-11 14:37 UTC
The full record
- Magnitude
- M 3.6 · local (Richter) magnitude
- Location
- 39 km N of Petersville, Alaska
- Local time at the epicentre
- Oct 11, 2026, 05:15 AM — AKDT, UTC-8
- Time (UTC)
- 2026-10-11 13:15 UTC
- Depth
- 104.1 km · Intermediate (70–300 km)
- Coordinates
- 62.853, -150.688
- Felt reports
- No “Did You Feel It?” reports submitted
- Estimated shaking
- II · Weak
- Tsunami
- No tsunami evaluation was flagged for this earthquake.
- Significance
- 199 / 1000 · routine event
- Solution quality
- 193 seismic stations used · 26° azimuthal gap (well-constrained epicentre)
- Review status
- Automatic solution — subject to revision
- 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.
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 1,260 within 100 km. Distances are from the epicentre to the town centre.
| Place | Distance | Population |
|---|---|---|
| Susitna North | 88.1 km SSE | 1,260 |
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
4 other events within 100 km in the last 30 days.
Be first to know about the next earthquake near 39 km N of Petersville, Alaska
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Frequently asked questions
How strong was the 39 km N of Petersville, Alaska earthquake?
Magnitude 3.6 (local (Richter) magnitude), at a depth of 104.1 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?
Oct 11, 2026, 05:15 AM (local time at the epicentre — AKDT, UTC-8). In universal time: 2026-10-11 13:15 UTC.
Was it felt?
No “Did You Feel It?” reports were submitted for this event. 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 Susitna North, 88.1 km SSE (population 1,260).
Are earthquakes normal in this area?
Yes. The largest earthquake recorded within 200 km since 1960 was magnitude 7.9 (2002 Denali Fault, Alaska Earthquake, 2002), and 4 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), in Venezuela FUNVISIS and in Brazil the RSBR through the Centro de Sismologia da USP. Populated places and time zones: GeoNames (CC BY 4.0). Preliminary solutions are revised as more observations arrive.