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M 4.0 earthquake 166 km SW of Nikolski, Alaska

USGS reports a magnitude 4.0 earthquake located 166 km SW of Nikolski, Alaska (coordinates 52.014, -170.792) at depth 12.9 km. Report published 2026-09-19T08:47:50.579Z.

Categories: severe-weather-and-natural-disasters

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence
9/10
Geographic reach
2/10
Global importance
3/10
Impact magnitude
3/10
Positivity
1/10
Urgency
5/10

Why it matters

An officially recorded earthquake event in the Aleutian region. Relevant for local awareness and seismic monitoring; USGS event pages provide authoritative event details and any follow-up alerts.

Location

Sources

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