First published · Last updated
M 3.9 earthquake - 167 km WSW of Nikolski, Alaska
USGS reports a magnitude 3.9 earthquake located at 52.374, -171.157 (167 km WSW of Nikolski, Alaska) at a depth of 90.5 km. Source published at 2026-09-16T08:28:51.752Z.
Categories: earthquake, geohazard, seismology
AI-generated scores
Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.
- AI confidence
- 9/10
- Geographic reach
- 2/10
- Global importance
- 3/10
- Impact magnitude
- 3/10
- Positivity
- 2/10
- Urgency
- 2/10
Why it matters
Small-to-moderate deep earthquake in a remote Aleutian region. Unlikely to cause significant damage or casualties, but relevant for local residents, emergency planners, and seismologists tracking regional seismicity and aftershock patterns.