USGS · August 1, 2026

Magnitude 3.4 earthquake — 20 km W of Salamatof, Alaska

A magnitude 3.4 earthquake was recorded near 20 km W of Salamatof, Alaska on Aug 1, 2026, 10:58 PM (local time at the epicentre — AKDT, UTC-8), at a depth of about 79.0 km, according to USGS.

USGSFelt by 8 people · community intensity III (weak)Shaking IIIntermediate (70–300 km)Reviewed by a seismologist

Updated 2026-08-23 09:14 UTC

The full record

Magnitude: M 3.4 · local (Richter) magnitude
Location: 20 km W of Salamatof, Alaska
Local time at the epicentre: Aug 1, 2026, 10:58 PM — AKDT, UTC-8
Time (UTC): 2026-08-02 06:58 UTC
Depth: 79.0 km · Intermediate (70–300 km)
Coordinates: 60.622, -151.687
Felt reports: Felt by 8 people · community intensity III (weak)
Estimated shaking: II · Weak
Tsunami: No tsunami evaluation was flagged for this earthquake.
Significance: 180 / 1000 · routine event
Solution quality: 205 seismic stations used · 37° azimuthal gap (well-constrained epicentre)
Review status: Reviewed by a seismologist
Catalog: USGS

Open the official catalog record

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 III (Weak): Felt indoors; hanging objects swing, like a passing truck.

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 12,154 people live in towns within 30 km of the epicentre, and 36,584 within 100 km. Distances are from the epicentre to the town centre.

Place	Distance	Population
Nikiski	23.0 km ENE	4,493
Kenai	24.6 km ESE	7,661
Kalifornsky	31.4 km SE	7,850
Ridgeway	34.4 km ESE	2,022
Cohoe	35.0 km SE	1,364
Soldotna	37.5 km ESE	4,544
Sterling	51.3 km E	5,617
Funny River	52.3 km ESE	1,103
Anchor Point	94.3 km S	1,930

Earthquake history in this area

No earthquake of magnitude 4.5+ has been recorded within 200 km of this epicentre since 1960, in Alaska.

Other earthquakes near this epicentre

59 other events within 100 km in the 30 days around this earthquake.

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Frequently asked questions

How strong was the 20 km W of Salamatof, Alaska earthquake?

Magnitude 3.4 (local (Richter) magnitude), at a depth of 79.0 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 1, 2026, 10:58 PM (local time at the epicentre — AKDT, UTC-8). In universal time: 2026-08-02 06:58 UTC.

Was it felt?

Felt by 8 people · community intensity III (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 Nikiski, 23.0 km ENE (population 4,493).

Are earthquakes normal in this area?

59 further events were recorded within 100 km of the epicentre in the 30 days around it.

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) and the European-Mediterranean Seismological Centre (EMSC). Populated places and time zones: GeoNames (CC BY 4.0). Preliminary solutions are revised as more observations arrive.